Elementry Structure Design ESD (2160607) MCQ RCC Structures Design Q uestion No. 01 An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm 2 , the beam (A) Is safe in shear (B) Is safe with stirrups (C) Is safe with stirrups and inclined bars (D) Needs revision of section Answer: Option D Q uestion No. 02 According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is (A) Half of the width of the slab (B) Two-third of the width of the slab (C) Three-fourth of the width of the slab (D) Four-fifth of the width of the slab Answer: Option C Q uestion No. 03 The load stress of a section can be reduced by (A) Decreasing the lever arm (B) Increasing the total perimeter of bars (C) Replacing larger bars by greater number of small bars (D) Replacing smaller bars by greater number of greater bars Answer: Option C Q uestion No. 04 The diameter of the column head support a flat slab, is generally kept (A) 0.25 times the span length (B) 0.25 times the diameter of the column (C) 4.0 cm larger than the diameter of the column (D) 5.0 cm larger than the diameter of the column Answer: Option A
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Elementry Structure Design ESD (2160607) MCQ
R CC Structures Design
Q uestion No. 01
An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a
U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2, the beam
(A) Is safe in shear
(B) Is safe with stirrups
(C) Is safe with stirrups and inclined bars
(D) Needs revision of section
Answer: Option D
Q uestion No. 02
According to I.S. : 456, slabs which span in two directions with corners held down,
are assumed to be divided in each direction into middle strips and edge strips such
that the width of the middle strip, is
(A) Half of the width of the slab
(B) Two-third of the width of the slab
(C) Three-fourth of the width of the slab
(D) Four-fifth of the width of the slab
Answer: Option C
Q uestion No. 03
The load stress of a section can be reduced by
(A) Decreasing the lever arm
(B) Increasing the total perimeter of bars
(C) Replacing larger bars by greater number of small bars
(D) Replacing smaller bars by greater number of greater bars
Answer: Option C
Q uestion No. 04
The diameter of the column head support a flat slab, is generally kept
(A) 0.25 times the span length
(B) 0.25 times the diameter of the column
(C) 4.0 cm larger than the diameter of the column
(D) 5.0 cm larger than the diameter of the column
Answer: Option A
Q uestion No. 05
If is the uniformly distributed load on a circular slab of radius fixed at its
ends, the maximum positive radial moment at its centre, is
(A) 3WR²/16
(B) 2WR²/16
(C) WR²/16
(D) None of these
Answer: Option C
Q uestion No. 06
The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is
(A) 35
(B) 25
(C) 30
(D) 20
Answer: Option C
Q uestion No. 07
If the width of the foundation for two equal columns is restricted, the shape of the
footing generally adopted, is
(A) Square
(B) Rectangular
(C) Trapezoidal
(D) Triangular
Answer: Option B
Q uestion No. 08
The floor slab of a building is supported on reinforced cement floor beams. The ratio
of the end and intermediate spans is kept
(A) 0.7
(B) 0.8
(C) 0.9
(D) 0.6
Answer: Option C
Q uestion No. 09
Pick up the correct statement from the following:
(A) Lateral reinforcement in R.C.C. columns is provided to prevent the longitudinal
reinforcement from buckling
(B) Lateral reinforcement prevents the shearing of concrete on diagonal plane
(C) Lateral reinforcement stops breaking away of concrete cover, due to buckling
(D) All the above
Answer: Option D
Q uestion No. 10
In case the factor of safety against sliding is less than 1.5, a portion of slab is
constructed downwards at the end of the heel slab, which is known as
(A) A key
(B) A cut-off wall
(C) A rib
(D) All the above
Answer: Option D
Q uestion No. 11
Lapped splices in tensile reinforcement are generally not used for bars of size larger than
(A) 18 mm diameter
(B) 24 mm diameter
(C) 30 mm diameter
(D) 36 mm diameter
Answer: Option D
Q uestion No. 12
Minimum spacing between horizontal parallel reinforcement of the same size should
not be less than
(A) One diameter
(B) 2.5 diameters
(C) 3 diameters
(D) 3.5 diameters
Answer: Option A
Q uestion No.
13 For a ribbed
slab
(A) Clear spacing between ribs shall not be greater than 4.5 cm
(B) Width of the rib shall not be less than 7.5 cm
(C) Overall depth of the slab shall not exceed four times the breadth of the rib
(D) All the above
Answer: Option D
Q uestion No. 14
A very comfortable type of stairs is
(A) Straight
(B) Dog legged
(C) Geometrical
(D) Open newel
Answer: Option D
Q uestion No. 15
Columns may be made of plain concrete if their unsupported lengths do not exceed
their least lateral dimension
(A) Two times
(B) Three times
(C) Four times
(D) Five times
Answer: Option C
Q uestion No. 16
The width of the flange of a L-beam, should be less than
(A) One-sixth of the effective span
(B) Breadth of the rib + four times thickness of the slab
(C) Breadth of the rib + half clear distance between ribs
(D) Least of the above
Answer: Option D
Q uestion No. 17
A pre-stressed concrete member is preferred because
(A) Its dimensions are not decided from the diagonal tensile stress
(B) Large size of long beams carrying large shear force need not be adopted
(C) Removal of cracks in the members due to shrinkage
(D) All the above
Answer: Option D
Q uestion No. 18
If the ratio of the span to the overall depth does not exceed 10, the stiffness of the
beam will ordinarily be satisfactory in case of a
(A) Simply supported beam
(B) Continuous beam
(C) Cantilever beam
(D) None of these
Answer: Option C
Q uestion No. 19
A pile of length carrying a uniformly distributed load per metre length is
suspended at two points, the maximum, B.M. at the centre of the pile or at the points
of suspension, is
(A) WL/8
(B) WL²/24
(C) WL²/47
(D) WL²/16
Answer: Option C
Q uestion No. 20
If is the net upward pressure on a square footing of side for
a square column of side , the maximum bending
moment is given by
(A) B.M = pb (c - a)/4
(B) B.M = pb (b - a)²/4
(C) B.M = pb (b - a)²/8
(D) B.M = pb (b + a)/8
Answer: Option C
Q uestion No. 21
To ensure uniform pressure distribution, the thickness of the foundation, is
(A) Kept uniform throughout
(B) Increased gradually towards the edge
(C) Decreased gradually towards the edge
(D) Kept zero at the edge
Answer: Option C
Q uestion No. 22
longitudinal bars and lateral stirrups, is
(A) Stress in concrete × area of concrete
(B) Stress in steel × area of steel
(C) Stress in concrete × area of concrete + Stress in steel × area of steel
(D) None of these
Answer: Option C
Q uestion No. 23
If p1 and p2 are mutually perpendicular principal stresses acting on a soil mass, the normal stress
to the principal plane carrying the principal stress p1, is:
(A) [(p - p p p sin 2
(B) [(p - p p p cos 2
(C) [(p p p - p cos 2
(D) [(p p p - p /2] sin 2
Answer: Option C
Q uestion No. 24
The maximum permissible size of aggregates to be used in casting the ribs of a slab, is
(A) 5 mm
(B) 7.5 mm
(C) 10 mm
(D) 15 mm
Answer: Option C
Q uestion No. 25
Pick up the incorrect statement from the following: Tensile reinforcement bars of a
rectangular beam
(A) Are curtailed if not required to resist the bending moment
(B) Are bent up at suitable places to serve as shear reinforcement
(C) Are bent down at suitable places to serve as shear reinforcement
(D) Are maintained at bottom to provide at least local bond stress
Answer: Option C
Q uestion No. 26
Steel bars are generally connected together to get greater length than the standard
length by providing
(A) Straight bar splice
(B) Hooked splice
(C) Dowel splice
(D) All the above
Answer: Option D
Q uestion No. 27
The minimum thickness of the cover at the end of a reinforcing bar should not be less
than twice the diameter of the bar subject to a minimum of
(A) 10 mm
(B) 15 mm
(C) 20 mm
(D) 25 mm
Answer: Option D
Q uestion No. 28
Top bars are extended to the projecting parts of the combined footing of two columns
Ldistance apart for a distance of
(A) 0.1 L from the outer edge of column
(B) 0.1 L from the centre edge of column
(C) Half the distance of projection
(D) One-fourth the distance of projection
Answer: Option B
Q uestion No. 29
For M 150 grade concrete (1:2:4) the moment of resistance factor is
(A) 0.87
(B) 8.50
(C) 7.50
(D) 5.80
Answer: Option B
Q uestion No. 30
is the pre-stressed force applied to tendon of a rectangular pre-stressed beam
whose area of cross section is and sectional modulus is . The minimum
stress on the beam subjected to a maximum bending moment is
(A) f = (P/A) - (Z/M)
(B) f = (A/P) - (M/Z)
(C) f = (P/A) - (M/Z)
(D) f = (P/A) - (M/6Z)
Answer: Option C
Q uestion No. 31
If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is
Young's modulus of steel and e is shrinkage strain, the combined effect of creep and
shrinkage is:
(A) (1 - C)mf - eE
(B) (C - 1)mf + eE
(C) (C - 1)mf - eE
(D) (1 - C)mf + eE
Answer: Option B
Q uestion No. 32
In a pre-stressed member it is advisable to use
(A) Low strength concrete only
(B) High strength concrete only
(C) Low strength concrete but high tensile steel
(D) High strength concrete and high tensile steel
Answer: Option D
Q uestion No. 33
An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the
roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor
level. The lintel is to be designed for self weight plus
(A) Triangular load of the wall
(B) UDL of wall
(C) UDL of wall + load from the roof
(D) Triangular load + load from the roof
Answer: Option C
Q uestion No. 34
The minimum clear cover for R.C.C. columns shall be
(A) Greater of 40 mm or diameter
(B) Smaller of 40 mm or diameter
(C) Greater of 25 mm or diameter
(D) Smaller of 25 mm or diameter
Answer: Option C
Q uestion No. 35
The minimum thickness of a flat slab is taken
(A) L/32 for end panels without drops
(B) L/36 for end panels without drops
(C) L/36 for interior panels without drop
(D) All the above
Answer: Option D
Q uestion No. 36
The design of heel slab of a retaining wall is based on the maximum bending moment due to:
(A) Its own weight
(B) Weight of the soil above it
(C) Load of the surcharge, if any
(D) All the above
Answer: Option D
Q uestion No. 37
An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000
kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is
(A) Safe in shear
(B) Is safe with stirrups
(C) Is safe with stirrups and inclined members
(D) Needs revision of the section
Answer: Option A
Q uestion No. 38
The neutral axis of a T-beam exists
(A) Within the flange
(B) At the bottom edge of the slab
(C) Below the slab
(D) All the above
Answer: Option D
Q uestion No. 39
A pre-cast pile generally used, is
(A) Circular
(B) Square
(C) Octagonal
(D) Square with corners chamfered
Answer: Option D
Q uestion No. 40
The spacing of transverse reinforcement of column is decided by the following consideration.
(A) The least lateral dimension of the column
(B) Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column
(C) Forty-eight times the diameter of transverse reinforcement
(D) All the above
Answer: Option D
Q uestion No. 41
The self-weight of the footing, is
(A) Not considered for calculating the upward pressure on footing
(B) Also considered for calculating the upward pressure on footing
(C) Not considered for calculating the area of the footing
(D) Both (b) and (c)
Answer: Option A
Q uestion No. 42
Pick up the incorrect statement from the following:
(A) In the stem of a retaining wall, reinforcement is provided near the earth side
(B) In the toe slab of a retaining wall, reinforcement is provided at the bottom of the slab
(C) In the heel slab of a retaining wall, reinforcement is provided at the top of the slab
(D) None of these
Answer: Option D
Q uestion No. 43
If the bearing capacity of soil is 10 tonnes/cm2 and the projection of plain concrete
footing from walls, is a cm, the depth D of footing is
(A) D = 0.0775 a
(B) D = 0.775 a
(C) D = 0.775 a
(D) D = 0.775 a2
Answer: Option B
Q uestion No. 44
After pre-stressing process is completed, a loss of stress is due to
(A) Shrinkage of concrete
(B) Elastic shortening of concrete
(C) Creep of concrete
(D) All the above
Answer: Option D
Q uestion No. 45
In a simply supported slab, alternate bars are curtailed at
(A) 1/4th of the span
(B) 1/5th of the span
(C) 1/6th of the span
(D) 1/7th of the span
Answer: Option D
Q uestion No. 46
If R and T are rise and tread of a stair spanning horizontally, the steps are supported
by a wall on one side and by a stringer beam on the other side, the steps are
designed as beams of width
(A) R + T
(B) T - R
(C) 2 + T2)
(D) R - T
nswer: Option C
Q uestion No. 47
If p1 and P2 are effective lateral loadings at the bottom and top exerted by a level
earth subjected to a super-load on the vertical face of height h of a retaining wall,
the horizontal pressure p per unit length of the wall, is
(A) [( - )/2] h
(B) [( + )/4] h
(C) [( + )/2] h
(D) ( - h
Answer: Option C
Q uestion No. 48
In the zone of R.C.C. beam where shear stress is less than 5 kg/cm2, nominal
reinforcement is provided at a pitch of
(A) One-half lever arm of the section
(B) One-third lever arm of the section
(C) Lever arm of the section
(D) One and half lever arm of the section
Answer: Option C
Q uestion No. 49
The transverse reinforcements provided at right angles to the main reinforcement
(A) Distribute the load
(B) Resist the temperature stresses
(C) Resist the shrinkage stress
(D) All the above
Answer: Option D
Q uestion No. 50
Long and short spans of a two way slab are ly and lx and load on the slab acting on
strips parallel to lx and ly be wx and wy respectively. According to Rankine Grashoff
theory
(A) (wx/wy) = (ly/lx)
(B) (wx/wy) = (ly/lx)²
(C) (wx/wy) = (ly/lx)4
(D) None of these
Answer: Option C
Q uestion No. 51
The pitch of the main bars in a simply supported slab, should not exceed its effective depth by
(A) Three times
(B) Four times
(C) Five times
(D) Six times
Answer: Option D
Q uestion No. 52
High strength concrete is used in pre-stressed member
(A) To overcome high bearing stresses developed at the ends
(B) To overcome bursting stresses at the ends
(C) To provide high bond stresses
(D) All the above
Answer: Option D
Q uestion No. 53
If is the load on a circular slab of radius , the maximum radial moment at the
centre of the slab, is
(A) WR²/16
(B) 2WR²/16
(C) 3WR²/16
(D) 5WR²/16
Answer: Option C
Q uestion No. 54
If A is the area of the foundation of a retaining wall carrying a load W and retaining
earth of weight w per unit volume, the minimum depth (h) of the foundation from the
free surface of the earth, is
(A) h = (W/Aw) [(1 - )/(1 + sin )]
(B) h = (W/Aw) [(1 + )/(1 + sin )]
(C) h = (W/Aw) [(1 - )/(1 + sin )]²
(D) h W/Aw) [(1 - )/(1 + sin )]²
Answer: Option C
Q uestion No. 55
If the permissible compressive and tensile stresses in a singly reinforced beam are 50
kg/cm2 and 1400 kg/cm
2 respectively and the modular ratio is 18, the percentage area
At of the steel required for an economic section, is
(A) 0.496 %
(B) 0.596 %
(C) 0.696 %
(D) 0.796 %
Answer: Option C
Q uestion No. 56
The modular ratio m of a concrete whose permissible compressive stress is C, may
be obtained from the equation.
(A) m = 700/3C
(B) m = 1400/3C
(C) m = 2800/3C
(D) m = 3500/3C
Answer: Option C
Q uestion No. 57
Enlarged head of a supporting column of a flat slab is technically known as
(A) Supporting end of the column
(B) Top of the column
(C) Capital
(D) Drop panel
Answer: Option C
Q uestion No. 58
Thickened part of a flat slab over its supporting column, is technically known as
(A) Drop panel
(B) Capital
(C) Column head
(D) None of these
Answer: Option A
Q uestion No. 59
If is the sectional area of a pre-stressed rectangular beam provided with a tendon
pre-stressed by a force through its centroidal longitudinal axis, the compressive
stress in concrete, is
(A) P/A
(B) A/P
(C) P/2A
(D) 2A/P
Answer: Option A
Q uestion No. 60
Side face reinforcement shall be provided in the beam when depth of the web in a beam exceeds
(A) 50 cm
(B) 75 cm
(C) 100 cm
(D) 120 cm
Answer: Option B
Q uestion No. 61
A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from
either end, is provided with a bent tendon with tension P such that central one-third
portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is
(A) WL/P
(B) WL/2P
(C) WL/3P
(D) WL/4P
Answer: Option C
Q uestion No. 62
The minimum head room over a stair must be
(A) 200 cm
(B) 205 cm
(C) 210 cm
(D) 230 cm
Answer: Option C
Q uestion No. 63
If q is the punching shear resistance per unit area a, is the side of a square footing for
a column of side b, carrying a weight W including the weight of the footing, the depth
(D) of the footing from punching shear consideration, is
(A) D = W (a - b)/4a²bq
(B) D = W (a² - b²)/4a²bq
(C) D = W (a² - b²)/8a²bq
(D) D = W (a² - b²)/4abq
Answer: Option B
Q uestion No. 64
For initial estimate for a beam design, the width is assumed
(A) 1/15th of span
(B) 1/20th of span
(C) 1/25th of span
(D) 1/30th of span
Answer: Option D
Q uestion No. 65
In a slab, the pitch of the main reinforcement should not exceed its effective depth
(A) Three times
(B) Four times
(C) Five times
(D) Two times
Answer: Option
Q uestion No. 66
If the length of a combined footing for two columns l metres apart is L and the
projection on the left side of the exterior column is x, then the projection y on the
right side of the exterior column, in order to have a uniformly distributed load, is
(where is the distance of centre of gravity
of column loads).
(A) y = L - (l - )
(B) y = L/2 + (l - )
(C) y = L/2 - (l + )
(D) y = L/2 - (l - )
Answer: Option D
Q uestion No. 67
Total pressure on the vertical face of a retaining wall of height h acts parallel to free
surface and from the base at a distance of
(A) h/4
(B) h/3
(C) h/2
(D) 2h/3
Answer: Option B
Q uestion No. 68
If the tendon is placed at an eccentricity e below the centroidal axis of the
longitudinal axis of a rectangular beam (sectional modulus Z and stressed load P
in tendon) the stress at the extreme top edge
(A) Is increased by PZ/e
(B) Is increased by Pe/Z
(C) Is decreased by Pe/Z
(D) Remains unchanged
Answer: Option C
Q uestion No. 69
The Young's modulus of elasticity of steel, is
(A) 150 KN/mm2
(B) 200 KN/mm2
(C) 250 KN/mm2
(D) 275 KN/mm2
Answer: Option D
Q uestion No. 70
Design of a two way slab simply supported on edges and having no provision to
prevent the corners from lifting, is made by
(A) Rankine formula
(B) Marcus formula
(C) Rankine Grashoff formula
(D) Grashoff formula
Answer: Option C
Q uestion No. 71
Spacing of stirrups in a rectangular beam, is
(A) Kept constant throughout the length
(B) Decreased towards the centre of the beam
(C) Increased at the ends
(D) Increased at the centre of the beam
Answer: Option D
Q uestion No. 72
As per IS : 456, the reinforcement in a column should not be less than
(A) 0.5% and not more than 5% of cross-sectional area
(B) 0.6% and not more than 6% of cross-sectional area
(C) 0.7% and not more than 7% of cross-sectional area
(D) 0.8% and not more than 8% of cross-sectional area
Answer: Option D
Q uestion No. 73
The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is
(A) 1400 kg/cm2
(B) 190 kg/cm2
(C) 260 kg/cm2
(D) 230 kg/cm2
Answer: Option A
Q uestion No. 74
Bottom bars under the columns are extended into the interior of the footing slab to a
distance greater than
(A) 42 diameters from the centre of the column
(B) 42 diameters from the inner edge of the column
(C) 42 diameters from the outer edge of the column
(D) 24 diameters from the centre of the column
Answer: Option C
Q uestion No. 75
Pick up the assumption for the design of a pre-stressed concrete member from the following:
(A) A transverse plane section remains a plane after bending
(B) During deformation limits, Hook's law is equally applicable to concrete as well as to steel
(C) Variation of stress in reinforcement due to changes in external loading is negligible
(D) All the above
Answer: Option D
Q uestion No. 76
The advantage of reinforced concrete, is due to
(A) Monolithic character
(B) Fire-resisting and durability
(C) Economy because of less maintenance cost
(D) All the above
Answer: Option D
Q uestion No. 77
An R.C.C. column is treated as short column if its slenderness ratio is less than
(A) 30
(B) 35
(C) 40
(D) 50
Answer: Option D
Q uestion No. 78
The zone in which transverse bending is likely to occur may be obtained by drawing a
line from the
(A) 30°
(B) 45°
(C) 60°
(D) None of these
Answer: Option B
Q uestion No. 79
The thickness of the topping of a ribbed slab, varies between
(A) 3 cm to 5 cm
(B) 5 cm to 8 cm
(C) 8 cm to 10 cm
(D) 12 cm to 15 cm
Answer: Option B
Q uestion No. 80
If the length of an intermediate span of a continuous slab is 5m, the length of the end span is kept
(A) 4.5 m
(B) 4.0 m
(C) 3.5 m
(D) 3.0 m
Answer: Option A
Q uestion No. 81
If L is the effective span of a R.C.C. beam which is subjected to maximum shear
qmax at the ends, the distance from either end over which stirrups for the shear, are
provided, is
(A) (L/2) (1 - 3/qmax)
(B) (L/3) (1 - 5/qmax)
(C) (L/2) (1 - 5/qmax)
(D) (L/2) (1 - 2/qmax)
Answer: Option C
Q uestion No. 82
The angle of internal friction of soil mass is the angle whose
(A) Tangent is equal to the rate of the maximum resistance to sliding on any internal inclined
plane to the normal pressure acting on the plane
(B) Sine is equal to the ratio of the maximum resistance to sliding on any internal inclined plane
to the normal pressure acting on the plane
(C) Cosine is equal to the ratio of the maximum resistance sliding on any internal inclined plane
to the normal pressure acting on the plane
(D) None of these
Answer: Option A
Q uestion No. 83
The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is
(A) 25
(B) 30
(C) 35
(D) 40
Answer: Option C
Q uestion No. 84
If T and R are the tread and rise of a stair which carries a load w per square metre on
slope, the corresponding load per square metre of the horizontal area, is
(A) w (R + T)/T
(B) w (R² + T²)/T
(C) w (R + T)/T
(D) w (R/T)
Answer: Option B
Q uestion No. 85
If the loading on a pre-stressed rectangular beam, is uniformly distributed, the tendon
to be provided should be.
(A) Straight below centroidal axis
(B) Parabolic with convexity downward
(C) Parabolic with convexity upward
(D) Straight above centroidal axis
Answer: Option B
Q uestion No. 86
For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its
span to its overall depth does not exceed
(A) 10
(B) 15
(C) 20
(D) 25
Answer: Option C
Q uestion No. 87
If the maximum dip of a parabolic tendon carrying tension P is h and the effective
length of the pre-stressed beam is L, the upward uniform pressure will be
(A) 8hp/l
(B) 8hp/l²
(C) 8hl/p
(D) 8hl/p²
Answer: Option B
Q uestion No. 88
If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre
distance of beams 3 m, effective span of beams 6 m, the effective flange width of the
beam, is
(A) 200 cm
(B) 300 cm
(C) 150 cm
(D) 100 cm
Answer: Option C
Q uestion No. 89
The steel generally used in R.C.C. work, is
(A) Stainless
(B) Mild steel
(C) High carbon steel
(D) High tension steel
Answer: Option B
Q uestion No. 90
If the ratio of long and short spans of a two way slab with corners held down is r, the
actual reduction of B.M. is given by
(A) (5/6) (r/1 + r²) M
(B) (5/6) (r²/1 + r²) M
(C) (5/6) (r²/1 + r3) M
(D) (5/6) (r²/1 + r4) M
Answer: Option D
Q uestion No. 91
A part of the slab may be considered as the flange of the T-beam if
(A) Flange has adequate reinforcement transverse to beam
(B) It is built integrally with the beam
(C) It is effectively bonded together with the beam
(D) All the above
Answer: Option D
Q uestion No. 92
By over-reinforcing a beam, the moment of resistance can be increased not more than
(A) 10 %
(B) 15 %
(C) 20 %
(D) 25 %
Answer: Option D
Q uestion No. 93
Total pressure on the vertical face of a retaining wall of height per unit run
exerted by the retained earth weighing per unit volume, is
(A) wh [(1 - )/(1 + sin )]
(B) wh² [(1 - )/(1 + sin )]
(C) wh² [(1 - )/2(1 + sin )]
(D) wh² [(1 - )/3(1 + sin )]
Answer: Option C
Q uestion No. 94
A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and
critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses,
the moment to resistance of the beam, is
(A) bn (fc/2) (d - n/3)
(B) Atft (d - n/3)
(C) ½ n1 (1 - n1/3) cbd²
(D) All the above
Answer: Option D
Q uestion No. 95
According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at
its edges, is kept less than
(A) 5 cm
(B) 10 cm
(C) 15 cm
(D) 20 cm
Answer: Option C
Q uestion No. 96
If l1 and l2 are the lengths of long and short spans of a two way slab simply supported
on four edges and carrying a load w per unit area, the ratio of the loads split into w1
and w2acting on strips parallel to l2 and l1 is
(A) w1/w2 = l2/l1
(B) w1/w2 = (l2/l1)²
(C) w1/w2 = (l2/l1)3
(D) w1/w2 = (l2/l1)4
Answer: Option D
Q uestion No. 97
The live load to be considered for an accessible roof, is
(A) Nil
(B) 75 kg/m3
(C) 150 kg/m2
(D) 200 kg/cm2
Answer: Option C
Q uestion No. 98
If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C.
column and m and c are the modular ratio and maximum stress in the
configuration of concrete, the strength of column is
(A) cAc + m cAsc
(B) c(A - Asc) + m cAsc
(C) c[A + (m - 1)ASC]
(D) All the above
Answer: Option D
Q uestion No. 99
On an absolutely rigid foundation base, the pressure will
(A) Be more at the edges of the foundation
(B) Be uniform
(C) Not be uniform
(D) Be zero at the centre of the foundation
Answer: Option C
Q uestion No. 100
The diameter of transverse reinforcement of columns should be equal to one-fourth
of the diameter of the main steel rods but not less than
(A) 4 mm
(B) 5 mm
(C) 6 mm
(D) 7 mm
Answer: Option D
Q uestion No. 101
If longitudinally spanning stairs are casted along with their landings, the maximum
bending moment per metre width, is taken as
(A) wl²/4
(B) wl²/8
(C) wl²/10
(D) wl²/12
Answer: Option B
Q uestion No. 102
If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose
projection on either side of the wall is a cm, the depth of foundation D is given by
(A) D = 0.00775 aP
(B) D = 0.0775 aP
(C) D = 0.07775 aP
(D) D = 0.775 Pa
Answer: Option A
Q uestion No. 103
If the shear stress in a R.C.C. beam is
(A) Equal or less than 5 kg/cm2, no shear reinforcement is provided
(B) Greater than 4 kg/cm2, but less than 20 kg/cm2, shear reinforcement is provided
(C) Greater than 20 kg/cm2, the size of the section is changed
(D) All the above
Answer: Option D
Q uestion No. 104
For a continuous floor slab supported on beams, the ratio of end span length and
intermediate span length, is
(A) 0.6
(B) 0.7
(C) 0.8
(D) 0.9
Answer: Option D
Q uestion No. 105
In a singly reinforced beam
(A) Compression is borne entirely by concrete
(B) Steel possesses initial stresses when embedded in concrete
(C) Plane sections transverse to the centre line of the beam before bending remain plane after
bending
(D) Elastic moduli for concrete and steel have different values within the limits of deformation
of the beam
Answer: Option C
Q uestion No. 106
The ratio of the breadth to effective depth of a beam is kept
(A) 0.25
(B) 0.50
(C) 0.70
(D) 0.75
Answer: Option B
Q uestion No. 107
In a cantilever retaining wall without a heel slab
(A) Thickness of the stem is kept same throughout
(B) Base slab is made 10 cm thicker than the stem
(C) Width of the base slab is kept 0.7 time the total height of the wall
(D) All the above
Answer: Option D
Q uestion No. 108
is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam
whose area of cross section is and sectional modulus is . The maximum
stress in the beam, subjected to a maximum bending moment , is
(A) f = (P/A) + (Z/M)
(B) f = (A/P) + (M/Z)
(C) f = (P/A) + (M/Z)
(D) f = (P/A) + (M/6Z)
Answer: Option C
Q uestion No. 109
A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
(A) Remains within the flange
(B) Remains below the slab
(C) Coincides the geometrical centre of the beam
(D) None of these
Answer: Option A
Q uestion No. 110
For the design of a simply supported T-beam the ratio of the effective span to the
overall depth of the beam is limited to
(A) 10
(B) 15
(C) 20
(D) 25
Answer: Option C
Q uestion No. 111
A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever
arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry
1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring
the weight of the beam, the number of shear stirrups required, is
(A) 30
(B) 35
(C) 40
(D) 45
Answer: Option C
Q uestion No. 112
The width of the rib of a T-beam, is generally kept between
(A) 1/7 to 1/3 of rib depth
(B) 1/3 to 1/2 of rib depth
(C) 1/2 to 3/4 of rib depth
(D) 1/3 to 2/3 of rib depth
Answer: Option D
Q uestion No. 113
A ribbed slab is provided for
(A) A plain ceiling
(B) Thermal insulation
(C) Acoustic insulation
(D) All the above
Answer: Option D
Q uestion No. 114
To ensure that the hogging bending moment at two points of suspension of a pile of
length L equals the sagging moment at its centre, the distances of the points of
suspension from either end, is
(A) 0.107 L
(B) 0.207 L
(C) 0.307 L
(D) 0.407 L
Answer: Option B
Q uestion No. 115
The stresses developed in concrete and steel in reinforced concrete beam 25 cm width
and 70 cm effective depth, are 62.5 kg/cm2 and 250 kg/cm
2 respectively. If m = 15, the
depth of its neutral axis is
(A) 20 cm
(B) 25 cm
(C) 30 cm
(D) 35 cm
Answer: Option C
Q uestion No. 116
If the depth of actual neutral axis of a doubly reinforced beam
(A) Is greater than the depth of critical neutral axis, the concrete attains its maximum stress
earlier
(B) Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum
stress earlier
(C) Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum
stresses simultaneously
(D) All the above
Answer: Option D
Q uestion No. 117
If the modular ratio is , steel ratio is and overall depth of a beam is , the
depth of the critical neutral axis of the beam, is
(A) [m/(m - r)] d
(B) [m/(m + r)] d
(C) [(m + r)/m] d
(D) [(r - m)/m] d
Answer: Option B
Q uestion No. 118
The maximum diameter of a bar used in a ribbed slab, is
(A) 12 mm
(B) 6 mm
(C) 20 mm
(D) 22 mm
Answer: Option D
Q uestion No. 119
A column is regarded as long column if the ratio of its effective length and lateral
dimension, exceeds
(A) 10
(B) 15
(C) 20
(D) 25
Answer: Option B
Q uestion No. 120
According to the steel beam theory of doubly reinforced beams
(A) Tension is resisted by tension steel
(B) Compression is resisted by compression steel
(C) Stress in tension steel equals the stress in compression steel
(D) All the above
Answer: Option D
Q uestion No. 121
The breadth of a ribbed slab containing two bars must be between
(A) 6 cm to 7.5 cm
(B) 8 cm to 10 cm
(C) 10 cm to 12 cm
(D) 12 cm to 15 cm
Answer: Option B
Q uestion No. 122
The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the
angle of repose and weight of the soil per cubic metre are 30° and 2000 kg
respectively, the effective width of the stem at the bottom, is
(A) 51.5
(B) 52.5
(C) 53.5
(D) 54.5
Answer: Option C
Q uestion No. 123
If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is
(A) 10 mm
(B) 12 mm
(C) 14 mm
(D) 16 mm
Answer: Option D
Q uestion No. 124
Minimum spacing between horizontal parallel reinforcement of different sizes, should
not be less than
(A) One diameter of thinner bar
(B) One diameter of thicker bar
(C) Twice the diameter of thinner bar
(D) None of these
Answer: Option B
Q uestion No. 125
For a number of columns constructed in a rcjw, the type of foundation provided, is
(A) Footing
(B) Raft
(C) Strap
(D) Strip
Answer: Option D
Q uestion No. 126
A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with
18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is
(A) 20 cm
(B) 25 cm
(C) 30 cm
(D) 35 cm
Answer: Option C
Q uestion No. 127
In testing a pile by load test, pile platform is loaded with one and half times the design
load and a maximum settlement is noted. The load is gradually removed and the
consequent rebound is measured. For a safe pile, the net settlement (i.e. total
settlement minus rebound) per tonne of test load should not exceed
(A) 10 mm
(B) 15 mm
(C) 20 mm
(D) 25 mm
Answer: Option D
Q uestion No. 128
The diameter of main bars in R.C.C. columns, shall not be less than
(A) 6 mm
(B) 8 mm
(C) 10 mm
(D) 12 mm
Answer: Option D
Q uestion No. 129
If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond
stress, the bond length is given by
(A) ft .d/4fb
(B) ( /4). (ft .d/fb)
(C) ft .d²/fb
(D) ( /4). (ft .d3/fb)
Answer: Option A
Q uestion No. 130
An intermediate T-beam reinforced with two layers of tensile steel with clear cover
13 cm encasted with the floor of a hall 12 metres by 7 metres, is spaced at 3 metres
from adjoining beams and if the width of the beam is 20 cm, the breadth of the flange
is
(A) 300 cm
(B) 233 cm
(C) 176 cm
(D) 236 cm
Answer: Option C
Q uestion No. 131
The length of lap in tension reinforcement should not be less than the bar diameter ×
(actual tension / four times the permissible average bond stress) if it is more than
(A) 18 bar diameters
(B) 24 bar diameters
(C) 30 bar diameters
(D) 36 bar diameters
Answer: Option C
Q uestion No. 132
As the percentage of steel increases
(A) Depth of neutral axis decreases
(B) Depth of neutral axis increases
(C) Lever arm increases
(D) Lever arm decreases
Answer: Option B
Q uestion No. 133
The effective width of a column strip of a flat slab, is
(A) One-fourth the width of the panel
(B) Half the width of the panel
(C) Radius of the column
(D) Diameter of the column
Answer: Option B
Q uestion No. 134
As per IS : 1343, total shrinkage for a pre-tensioned beam, is
(A) 3.0 × 10-2
(B) 3.0 × 10-3
(C) 3.0 × 10-5
(D) 3.5 × 10-5
Answer: Option D
Q uestion No. 135
Dimensions of a beam need be changed if the shear stress is more than
(A) 10 kg/cm2
(B) 15 kg/cm2
(C) 20 kg/cm2
(D) 25 kg/cm2
Answer: Option C
Q uestion No. 136
Based on punching shear consideration, the overall depth of a combined
footing under a column A, is
(A) (Area of the column A × Safe punching stress)/Load on column A
(B) (Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure ×
Area of the column)
(C) (Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure ×
Area of the column)
(D) None of these
Answer: Option B
Q uestion No. 137
Pick up the correct statement from the following:
(A) A pile is a slender member which transfers the load through its lower end on a strong strata
(B) A pile is a slender member which transfers its load to the surrounding soil
(C) A pile is a slender member which transfers its load by friction
(D) A pile is a cylindrical body of concrete which transfers the load at a depth greater than its
width
Answer: Option B
Q uestion No. 138
In a combined footing if shear stress exceeds 5 kg/cm2, the nominal stirrups provided
are:
(A) 6 legged
(B) 8 legged
(C) 10 legged
(D) 12 legged
Answer: Option D
Q uestion No. 139
The weight of reinforced concrete, is generally taken as
(A) 2200 kg/m3
(B) 2300 kg/m3
(C) 2400 kg/m3
(D) 2500 kg/m3
Answer: Option C
Q uestion No. 140
If W is the load on a circular slab of radius R, the maximum circumferential moment
at the centre of the slab, is
(A) WR²/16
(B) 2WR²/16
(C) 3WR²/16
(D) Zero
Answer: Option C
Q uestion No. 141
If is weight of a retaining wall and is the horizontal earth pressure, the
factor of safety against sliding, is
(A) 1.0
(B) 1.25
(C) 1.5
(D) 2.0
Answer: Option C
Q uestion No. 142
The effective span of a simply supported slab, is
(A) Distance between the centres of the bearings
(B) Clear distance between the inner faces of the walls plus twice the thickness of the wall
(C) Clear span plus effective depth of the slab
(D) None of these
Answer: Option B
Q uestion No. 143
In a beam the local bond stress Sb, is equal to
(A) Shear force/(Leaver arm × Total perimeter of reinforcement)
(B) Total perimeter of reinforcement/(Leaver arm × Shear force)
(C) Leaver arm/(Shear force × Total perimeter of reinforcement)
(D) Leaver arm/(Bending moment × Total perimeter of reinforcement)
Answer: Option A
Q uestion No. 144
A continuous beam shall be deemed to be a deep beam if the ratio of effective span to
overall depth, is
A) 2.5
(B) 2.0
(C) Less than 2
(D) Less than 2.5
Answer: Option A
Q uestion No. 145
With usual notations the depth of the neutral axis of a balanced section, is given by
(A) mc/t = (d - n)/n
(B) t/mc = (d - n)/n
(C) t/mc = (d + n)/n
(D) mc/t = n/(d - n)
Answer: Option D
Q uestion No. 146
Pick up the true statement from the following:
(A) Plain ceiling provides the best property diffusing light
(B) In the absence of beams, it is easier to install piping
(C) In the absence of beams, it is easier to paint
(D) All the above
Answer: Option D
Q uestion No. 147
If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m
effective span is 10 kg/cm2, the length of the beam having nominal reinforcement, is
(A) 8 cm
(B) 6 m
(C) 8 m
(D) 10 m
Answer: Option C
Q uestion No. 148
If the length of a wall on either side of a lintel opening is at least half of its effective
span L, the load W carried by the lintel is equivalent to the weight of brickwork
contained in an equilateral triangle, producing a maximum bending moment
(A) WL/2
(B) WL/4
(C) WL/6
(D) WL/8
Answer: Option C
Q uestion No. 149
The section of a reinforced beam where most distant concrete fibre in compression
and tension in steel attains permissible stresses simultaneously, is called
(A) Balanced section
(B) Economic section
(C) Critical section
(D) All the above
Answer: Option D
Q uestion No. 150
The length of the lap in a compression member is kept greater than bar diameter x
(Permissible stress in bar / Five times the bond stress) or
(A) 12 bar diameters
(B) 18 bar diameters
(C) 24 bar diameters
(D) 30 bar diameters
Answer: Option C
Q uestion No. 151
The system in which high tensile alloy steel bars (silica manganese steel) are used as
prestressing tendons, is known as
(A) Freyssinet system
(B) Magnel-Blaton system
(C) C.C.L. standard system
(D) Lee-McCall system
Answer: Option D
Q uestion No. 152
An under-reinforced section means
(A) Steel is provided at the underside only
(B) Steel provided is insufficient
(C) Steel provided on one face only
(D) Steel will yield first
Answer: Option D
Q uestion No. 153
The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes
(A) With the horizontal
(B) With the vertical
(C) With the perpendicular to the inclined plane of the soil
(D) None of these
Answer: Option A
Q uestion No. 154
In a doubly-reinforced beam if and
is
the effective depth and is depth of critical neutral axis, the following relationship holds good
(A) mc/t = n/(d - n)
(B) (m + c)/t = n/(d + n)
(C) (t + c)/n = (d + n)/n
(D) mc/t = (d - n)/t
Answer: Option A
Q uestion No. 155
A raft foundation is provided if its area exceeds the plan area of the building by
(A) 10 %
(B) 20 %
(C) 40 %
(D) 50 %
Answer: Option D
Q uestion No. 156
In favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum
crushing strength
(A) 100 kg/cm2
(B) 200 kg/cm2
(C) 300 kg/cm2
(D) 400 kg/cm2
Answer: Option D
Q uestion No. 157
If p1 is the vertical intensity of pressure at a depth h on a block of earth weighing w per unit
p2 is
(A) wh (1 - cos )/(1 + )
(B) wh (1 - sin )/(1 + )
(C) wh (1 - tan )/(1 + )
(D) w (1 - cos )/h (1 + sin )
Answer: Option B
Q uestion No. 158
Pick up the incorrect statement from the following. The intensity of horizontal shear
stress at the elemental part of a beam section, is directly proportional to
(A) Shear force
(B) Area of the section
(C) Distance of the C.G. of the area from its neutral axis
(D) Moment of the beam section about its neutral axis
Answer: Option D
Q uestion No. 159
According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at
its edges, is kept less than
(A) 20 cm
(B) 30 cm
(C) 40 cm
(D) 75 cm
Answer: Option B
Q uestion No. 160
An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6
metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm
constant for the section is 0.865, the maximum intensity of shear stress, is
(A) 8.3 kg/cm2
(B) 7.6 kg/cm2
(C) 21.5 kg/cm2
(D) 11.4 kg/cm2
Answer: Option A
Q uestion No. 161
The percentage of minimum reinforcement of the gross sectional area in slabs, is
(A) 0.10 %
(B) 0.12 %
(C) 0.15 %
(D) 0.18 %
Answer: Option C
Q uestion No. 162
If the permissible compressive stress for a concrete in bending is C kg/m2, the
modular ratio is
(A) 2800/C
(B) 2300/2C
(C) 2800/3C
(D) 2800/C2
Answer: Option C
Q uestion No. 163
An R.C.C. beam not provided with shear reinforcement may develop cracks in its
bottom inclined roughly to the horizontal at
(A) 25°
(B) 35°
(C) 45°
(D) 55°
Answer: Option C
Q uestion No. 164
Cantilever retaining walls can safely be used for a height not more than
(A) 3 m
(B) 4 m
(C) 5 m
(D) 6 m
Answer: Option D
Q uestion No. 165
The maximum area of tension reinforcement in beams shall not exceed
(A) 0.15 %
(B) 1.5 %
(C) 4 %
(D) 1 %
Answer: Option C
Q uestion No. 166
The width of the flange of a T-beam should be less than
(A) One-third of the effective span of the T-beam
(B) Distance between the centres of T-beam
(C) Breadth of the rib plus twelve times the thickness of the slab
(D) Least of the above
Answer: Option D
Q uestion No. 167
For a circular slab carrying a uniformly distributed load, the ratio of the maximum
negative to maximum positive radial moment, is
(A) 1
(B) 2
(C) 3
(D) 5
Answer: Option B
Q uestion No. 168
According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is
(A) 5 kg/cm2
(B) 10 kg/cm2
(C) 15 kg/cm2
(D) 20 kg/cm2
Answer: Option A
Q uestion No. 169
The width of the flange of a T-beam, which may be considered to act effectively with
the rib depends upon
(A) Breadth of the rib
(B) Overall thickness of the rib
(C) Centre to centre distance between T-beams
(D) All the above
Answer: Option D
Q uestion No. 170
The maximum shear stress (qmax) in a rectangular beam is
(A) 1.25 times the average
(B) 1.50 times the average
(C) 1.75 times the average
(D) 2.0 times the average
Answer: Option B
Q uestion No. 171
If the sides of a slab simply supported on edges and spanning in two directions are
equal, the maximum bending moment is multiplied by
(A) 0.2
(B) 0.3
(C) 0.4
(D) 0.5
Answer: Option D
Q uestion No. 172
If K is a constant depending upon the ratio of the width of the slab to its effective
span l, x is the distance of the concentrated load from the nearer support, bw is the
width of the area of contact of the concentrated load measured parallel to the
supported edge, the effective width of the slab be is
(A) K/x (1 + x/d) + bw
(B) Kx (1 - x/l) + bw
(C) Kx (1 + x/l) + bw
(D) All the above
Answer: Option B
Q uestion No. 173
The length of the straight portion of a bar beyond the end of the hook, should be at least
(A) Twice the diameter
(B) Thrice the diameter
(C) Four times the diameter
(D) Seven times the diameter
Answer: Option D
Q uestion No. 174
If the maximum bending moment of a simply supported slab is M Kg.cm, the effective
depth of the slab is (where Q is M.R. factor)
(A) M/100Q
(B) M/ Q
(C) M/Q)
(D) (M/100Q)
Answer: Option D
Q uestion No. 175
If is the overall height of a retaining wall retaining a surcharge, the width of
the base slab usually provided, is
(A) 0.3 H
(B) 0.4 H
(C) 0.5 H
(D) 0.7 H
Answer: Option D
Answer: Option D
Q uestion No. 177
If diameter of a reinforcement bar is d, the anchorage value of the hook is
(A) 4d
(B) 8d
(C) 12d
(D) 16d
Answer: Option D
Q uestion No. 178
As per I.S. 456 - 1978, the pH value of water shall be
(A) Less than 6
(B) Equal to 6
(C) Not less than 6
(D) Equal to 7
Answer: Option C
Q uestion No. 179
For M 150 mix concrete, according to I.S. specifications, local bond stress, is
(A) 5 kg/cm2
(B) 10 kg/cm2
(C) 15 kg/cm2
(D) 20 kg/cm2
Answer: Option B
Q uestion No. 180
The minimum cube strength of concrete used for a pre-stressed member, is
(A) 50 kg/cm2
(B) 150 kg/cm2
(C) 250 kg/cm2
(D) 350 kg/cm2
Answer: Option D
Q uestion No. 181
If d and n are the effective depth and depth of the neutral axis respectively of a singly
reinforced beam, the lever arm of the beam, is
(A) d
(B) n
(C) d + n/3
(D) d - n/3
Answer: Option D
Q uestion No. 182
The weight of a foundation is assumed as
(A) 5% of wall weight
(B) 7% of wall weight
(C) 10% of wall weight
(D) 12% of wall weight
Answer: Option C
QQuestion No. 183
An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm placed
symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the
stress is
(A) 49.9 kg/cm2
(B) 100 kg/cm2
(C) 250 kg/cm2
(D) 175 kg/cm2
Answer: Option A
Q uestion No. 184
If the diameter of longitudinal bars of a square column is 16 mm, the diameter of
lateral ties should not be less than
(A) 4 mm
(B) 5 mm
(C) 6 mm
(D) 8 mm
Answer: Option B
Q uestion No. 185
Design of R.C.C. cantilever beams, is based on the resultant force at
(A) Fixed end
(B) Free end
(C) Mid span
(D) Mid span and fixed support
Answer: Option A
Q uestion No. 186
In a combined footing if shear stress does not exceed 5 kg/cm2, the nominal stirrups
provided are
(A) 6 legged
(B) 8 legged
(C) 10 legged
(D) 12 legged
Answer: Option B
Q uestion No. 187
The maximum shear stress (q) in concrete of a reinforced cement concrete beam is
(A) Shear force/(Lever arm × Width)
(B) Lever arm/(Shear force × Width)
(C) Width/(Lever arm × Shear force)
(D) (Shear force × Width)/Lever arm
Answer: Option A
Q uestion No. 188
An R.C.C. column is treated as long if its slenderness ratio is greater than
(A) 30
(B) 35
(C) 40
(D) 50
Answer: Option D
Q uestion No. 189
The thickness of base slab of a retaining wall generally provided, is
(A) One half of the width of the stem at the bottom
(B) One-third of the width of the stem at the bottom
(C) One fourth of the width of the steam at the bottom
(D) Width of the stem at the bottom
Answer: Option D
Q uestion No. 190
Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at
(A) Supports
(B) Mid span
(C) Every section
(D) Quarter span
Answer: Option B
Q uestion No. 191
If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m
effective span is 10 kg/cm2, the share stirrups are provided for a distance from
either end where, is
(A) 50 cm
(B) 100 cm
(C) 150 cm
(D) 200 cm
Answer: Option C
Q uestion No. 192
Distribution reinforcement in a simply supported slab, is provided to distribute
(A) Load
(B) Temperature stress
(C) Shrinkage stress
(D) All the above
Answer: Option D
Q uestion No. 193
Distribution of shear intensity over a rectangular section of a beam, follows:
(A) A circular curve
(B) A straight line
(C) A parabolic curve
(D) An elliptical curve
Answer: Option C
Q uestion No. 194
In a singly reinforced beam, if the permissible stress in concrete reaches earlier than
that in steel, the beam section is called
(A) Under-reinforced section
(B) Over reinforced section
(C) Economic section
(D) Critical section
Answer: Option B
Q uestion No. 195
If the size of a column is reduced above the floor, the main bars of the columns, are
(A) Continued up
(B) Bent inward at the floor level
(C) Stopped just below the floor level and separate lap bars provided
(D) All the above
Answer: Option D
Q uestion No. 196
The minimum number of main steel bars provided in R.C.C.
(A) Rectangular columns is 4
(B) Circular columns is 6
(C) Octagonal columns is 8
(D) All the above
Answer: Option D
Q uestion No. 197
A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross
section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40
kg/cm2 and 300 kg/cm
2, the Safe load on the column, should not exceed
(A) 4120 kg
(B) 41,200 kg
(C) 412,000 kg
D) None of these
Answer: Option B
Q uestion No. 198
If T and R are tread and rise respectively of a stair, then
(A) 2R + T = 60
(B) R + 2T = 60
(C) 2R + T = 30
(D) R + 2T = 30
Answer: Option A
Q uestion No. 199
For stairs spanning l metres longitudinally between supports at the bottom and
top of a flight carrying a load w per unit horizontal area, the maximum bending
moment per metre width, is
(A) wl²/4
(B) wl²/8
(C) wl²/12
(D) wl²/16
Answer: Option D
Q uestion No. 200
In a singly reinforced beam, the effective depth is measured from its compression edge to
(A) Tensile edge
(B) Tensile reinforcement
(C) Neutral axis of the beam
(D) Longitudinal central axis
Answer: Option B
Q uestion No. 201
Though the effective depth of a T-beam is the distance between the top compression
edge to the centre of the tensile reinforcement, for heavy loads, it is taken as
(A) 1/8th of the span
(B) 1/10th of the span
(C) 1/12th of the span
(D) 1/16th of the span
Answer: Option C
Q uestion No. 203
On piles, the drop must be at least
(A) 80 cm
(B) 100 cm
(C) 120 cm
(D) 140 cm
Answer: Option C
Q uestion No. 204
Steel beam theory is used for
(A) Design of simple steel beams
(B) Steel beams encased in concrete
(C) Doubly reinforced beams ignoring compressive stress in concrete
(D) Beams if shear exceeds 4 times allowable shear stress
Answer: Option C
Q uestion No. 205
In a pre-stressed beam carrying an external load W with a bent tendon is having angle
of -stressed load P. The net downward load at the centre is
(A) W - 2P
(B) W - P
(C) W - P
(D) W - 2P
Answer: Option D
Q uestion No. 206
To have pressure wholly compressive under the base of a retaining wall of width b,
the resultant of the weight of the wall and the pressure exerted by the retained, earth
should have eccentricity not more than
(A) b/3
(B) b/4
(C) b/5
(D) b/6
Answer: Option D
Q uestion No. 207
The diameter of longitudinal bars of a column should never be less than
(A) 6 mm
(B) 8 mm
(C) 10 mm
(D) 12 mm
Answer:
Option D
Q uestion No. 208
Post tensioning system
(A) Was widely used in earlier days
(B) Is not economical and hence not generally used
(C) Is economical for large spans and is adopted now a days
(D) None of
these Answer:
Option D
Q uestion No. 209
The number of treads in a flight is equal to
(A) Risers in the flight
(B) Risers plus one
(C) Risers minus one
(D) None of
these Answer:
Option C
Q uestion No. 210
The amount of reinforcement for main bars in a slab, is based upon
(A) Minimum bending moment
(B) Maximum bending moment
(C) Maximum shear force
(D) Minimum shear
force Answer: Option
B
Q uestion No. 211
The shear reinforcement in R.C.C. is provided to resist
(A) Vertical shear
(B) Horizontal shear
(C) Diagonal compression
(D) Diagonal
tension Answer:
Option D
Q uestion No. 212
A simply supported beam 6 m long and of effective depth 50 cm, carries a
uniformly distributed load 2400 kg/m including its self weight. If the lever arm
factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm2, the area of
steel required, is
(A) 14 cm2
(B) 15 cm2
(C) 16 cm2
(D) 17 cm2
Answer:
Option C
Q uestion No. 213
The anchorage value of a hook is assumed sixteen times the diameter of the bar if
the angle of the bend, is
(A) 30°
(B) 40°
(C) 45°
(D) All the above
Answer: Option D
Q uestion No. 214
A circular slab subjected to external loading, deflects to form a
(A) Semi-hemisphere
(B) Ellipsoid
(C) Paraboloid
(D) None of
these Answer:
Option C
Q uestion No. 215
If a rectangular pre-stressed beam of an effective span of 5 meters and carrying a
total load 3840 kg/m, is designed by the load balancing method, the central dip of the
parabolic tendon should be
(A) 5 cm
(B) 10 cm
(C) 15 cm
(D) 20 cm
Answer:
Option B
Q uestion No. 216
The radius of a bar bend to form a hook, should not be less than
(A) Twice the diameter
(B) Thrice the diameter
(C) Four times the diameter
(D) Five times the
diameter Answer:
Option A
Q uestion No. 217
The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force
6t/cm2, safe shear stress 5 kg/cm
2 and B.M. 24 mt,
(A) Is safe in shear
(B) Is unsafe in shear
(C) Is over safe in shear
(D) Needs
redesigning
Answer: Option B
Q uestion No. 218
If a bent tendon is required to balance a concentrated load W at the centre of the
span L, the central dip h must be at least
(A) WL/P
(B) WL/2P
(C) WL/3P
(D) WL/4P
Answer: Option D
Q uestion No. 219
If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is
(A) 40
(B) 45
(C) 50
(D) 55
Answer: Option D
Q uestion No. 220
If W is total load per unit area on a panel, D is the diameter of the column head, L is
the span in two directions, then the sum of the maximum positive bending moment
and average of the negative bending moment for the design of the span of a square
flat slab, should not be less than
(A) WL/12 (L - /3)²
(B) WL/10 (L + /3)²
(C) WL/10 (L - /3)²
(D) WL/12 (L - /3)²
Answer: Option C
Q uestion No. 221
Piles are usually driven by
(A) Diesel operated hammer
(B) Drop hammer
(C) Single acting steam hammer
(D) All the
above Answer:
Option D
Q uestion No. 222
In a combined footing for two columns carrying unequal loads, the maximum
hogging bending moment occurs at
(A) Less loaded column
(B) More loaded column
(C) A point of the maximum shear force
(D) A point of zero shear force
Answer: Option D
Q uestion No. 223
If the average bending stress is 6 kg/cm2 for M 150 grade concrete, the length of
embedment of a bar of diameter d according to I.S. 456 specifications, is
(A) 28 d
(B) 38 d
(C) 48 d
(D) 58 d
Answer: Option D
Q uestion No. 224
The live load to be considered for an inaccessible roof, is
(A) Nil
(B) 75 kg/m2
(C) 150 kg/cm2
(D) 200 kg/m2
Answer:
Option B
Q uestion No. 225
A pile of length carrying a uniformly distributed load per metre length is
suspended at the centre and from other two points 0.15 L from either end ; the
maximum hogging moment will be
(A) WL²/15
(B) WL²/30
(C) WL²/60
(D) WL²/90
Answer:
Option D
Q uestion No. 226
An R.C.C. roof slab is designed as a two way slab if
(A) It supports live loads in both directions
(B) The ratio of spans in two directions is less than 2
(C) The slab is continuous over two supports
(D) The slab is discontinuous at
edges Answer: Option B
Q uestion No. 227
The design of a retaining wall assumes that the retained earth
(A) Is dry
(B) Is free from moisture
(C) Is not cohesive
(D) All the
above Answer:
Option D
Q uestion No. 228
A foundation rests on
(A) Base of the foundation
(B) Sub-grade
(C) Foundation soil
(D) Both (b) and
(c) Answer:
Option D
Q uestion No. 229
The advantage of a concrete pile over a timber pile, is
(A) No decay due to termites
(B) No restriction on length
(C) Higher bearing capacity
(D) All the
above Answer:
Option D
Q uestion No. 230
For stairs spanning horizontally, the minimum waist provided is
(A) 4 cm
(B) 6 cm
(C) 8 cm
(D) 12 cm
Answer:
Option D
Q uestion No. 231
The toe projection of foundation slabs is taken
(A) As one third of the base
(B) As one sixth of overall height of the wall
(C) Equal to heel slab
(D) Below ground
surface Answer:
Option A
Q uestion No. 232
The horizontal portion of a step in a stairs case, is known as
(A) Rise
(B) Flight
(C) Winder
(D) Tread
Answer:
Option D
Q uestion No. 233
The maximum ratio of span to depth of a cantilever slab, is
(A) 8
(B) 10
(C) 12
(D) 16
Answer: Option C
Q uestion No. 234
[A + (m - 1)ASC] known as equivalent concrete area of R.C.C. is given by
(A) Modular ratio method
(B) Load factor method
(C) Ultimate load method
(D) None of
these Answer:
Option A
Q uestion No. 235
If permissible working stresses in steel and concrete are respectively 1400
kg/cm2 and 80 kg/cm
2 and modular ratio is 18, in a beam reinforced in tension side
and of width 30 cm and having effective depth 46 cm, the lever arms of the
section, is
(A) 37 cm
(B) 38 cm
(C) 39 cm
(D) 40 cm
Answer:
Option D
Q uestion No. 236
A pre-stressed concrete member
(A) Is made of concrete
(B) Is made of reinforced concrete
(C) Is stressed after casting
(D) Possesses internal
stresses Answer: Option D
Q uestion No. 237
A flat slab is supported
(A) On beams
(B) On columns
(C) On beams and columns
(D) On columns monolithically built with
slab Answer: Option D
Q uestion No. 238
A foundation is called shallow if its depth, is
(A) One-fourth of its width
(B) Half of its width
(C) Three-fourth of its width
(D) Equal to its
width Answer:
Option D
Design of Steel Structures
Question No. 01
Select the correct statement
(A) Material cost of a rivet is higher than that of a bolt
(B) Tensile strength of a bolt is lesser than that of a rivet
(C) Bolts are used as a temporary fastening whereas rivets are used as permanent fastenings
(D) Riveting is less noisy than bolting
Answer: Option C
Question No. 02
The forces acting on the web splice of a plate girder are
(A) Axial forces
(B) Shear and axial forces
(C) Shear and bending forces
(D) Axial and bending forces
Answer: Option C
Question No. 03
Generally the purlins are placed at the panel points so as to avoid
(A) Axial force in rafter
(B) Shear force in rafter
(C) Deflection of rafter
(D) Bending moment in rafter
Answer: Option D
Question No. 04
Which of the following sections should preferably be used at places where torsion occurs?
(A) Angle section
(B) Channel section
(C) Box type section
(D) Any of the above
Answer: Option C
Question No. 05
Other conditions being same, the load factor in indeterminate structures is
(A) Equal to load factor in determinate structures
(B) More than the load factor in determinate structures
(C) Less than the load factor in determinate structures
(D) Unpredictable
Answer: Option B
Question No. 06
Rivets connecting flange angles to cover plates in a plate girder are subjected to
(A) Horizontal shear only
(B) Vertical load only
(C) Both (A) and (B)
(D) None of the above
Answer: Option A
Question No. 07
The effective length of a fillet weld should not be less than
(A) Two times the weld size
(B) Four times the weld size
(C) Six times the weld size
(D) Weld size
Answer: Option B
Question No. 08
In a gusseted base, when the end of the column is machined for complete
bearing on the base plate, then the axial load is assumed to be transferred to
base plate
(A) Fully by direct bearing
(B) Fully through fastenings
(C) 50% by direct bearing and 50% through fastenings
(D) 75% by direct bearing and 25% through fastenings
Answer: Option C
Question No. 09
If the floor is supported at or near the bottom but top chords of a bridge is not
braced, then the bridge is called
(A) Deck type
(B) Through type
(C) Half through type
(D) Double deck type
Answer: Option C
Question No. 10
The elastic strain for steel is about
(A) 1/12 of strain at the initiation of strain hardening and about 1/120 of maximum strain
(B) 1/2 of strain at the initiation of strain hardening and about 1/12 of maximum strain
(C) 1/12 of strain at the initiation of strain hardening and 1/200 of maximum strain
(D) 1/24 of strain at the initiation of strain hardening and about 1/200 of maximum strain
Answer: Option C
Question No. 11
In the virtual work method, the virtual quantity is
(A) Displacement
(B) Load
(C) Slope
(D) Moment
Answer: Option A
Question No. 12
In moment resistant connections, the moment resistance of riveted connection depends upon
(A) Shear in rivets
(B) Compression in rivets
(C) Tension in rivets
(D) Strength of rivets in bearing
Answer: Option C
Question No. 13
The portal bracing in a truss bridge is used to
(A) Transfer load from top of end posts to bearings
(B) Keep the rectangular shape of the bridge cross-section
(C) Stiffen the structure laterally
(D) Prevent the sides-way buckling of top chord
Answer: Option A
Question No. 14
The maximum permissible span of asbestos cement sheets is
(A) 650 mm
(B) 810 mm
(C) 1250 mm
(D) 1680 mm
Answer: Option D
Question No. 15
Lacing bars in a steel column should be designed to resist
(A) Bending moment due to 2.5% of the column load
(B) Shear force due to 2.5% of the column load
(C) 2.5% of the column load
(D) Both (A) and (B)
Answer: Option B
Question No. 16
The moment of the couple set up in a section of a beam by the longitudinal
compressive and tensile force, is known as
(A) Bending moment
(B) Moment of resistance
(C) Flexural stress moment
(D) None of these
Answer: Option B
Question No. 17
The thickness of the web of a mild steel plate girder is less than d/200. If only
one horizontal stiffener is used, it is placed at
(A) The neutral axis of the section
(B) 2/3rd of the depth of the neutral axis from the compression flange
(C) 2/5th of the depth of the neutral axis from the compression flange
(D) 2/5th of the height of the neutral axis from tension flange
Answer: Option C
Question No. 18
Shear buckling of web in a plate girder is prevented by using
(A) Vertical intermediate stiffener
(B) Horizontal stiffener at neutral axis
(C) Bearing stiffener
(D) None of the above
Answer: Option A
Question No. 19
The most commonly used sections in lateral system to carry shear force in built up columns, are
(A) Rolled steel flats
(B) Rolled angles
(C) Rolled channels
(D) All the above
Answer: Option D
Question No. 20
The stress in the wall of a thin cylinder subjected to internal pressure, is
(A) Hoop compression
(B) Shear
(C) Torsional shear
(D) Hoop tension
Answer: Option D
Question No. 21
The risk coefficient k, depends on
(A) Mean probable design life of structures
(B) Basic wind speed
(C) Both (A) and (B)
(D) None of the above
Answer: Option C
Question No. 22
For eccentrically loaded columns, the bending factor is
(A) Cross-sectional area of column/Radius of gyration
(B) Radius of gyration/Cross-sectional area of column
(C) Cross-sectional area of column/Section modulus of the section
(D) Section modulus of the section/Cross-sectional area of column
Answer: Option C
Question No. 23
The net area of round bars to resist the tension, is the area of cross section at
(A) Mid-section
(B) Root of the thread
(C) Difference of (a) and (b)
(D) None of these
Answer: Option B
Question No. 24
The bracing between two columns of a steel tank will be designed to resist
(A) Horizontal shear due to wind or earthquake only
(B) Horizontal, shear due to wind or earthquake + 2.5% of column loads
(C) Column loads + 2.5% of horizontal shear due to wind or earthquake
(D) Column loads + full horizontal shear due to wind or earthquake
Answer: Option B
Question No. 25
A column splice is used to increase
(A) Length of the column
(B) Strength of the column
(C) Cross-sectional area of the column
(D) None of these
Answer: Option A
Question No. 26
A beam may be designed as a cased beam if
(A) Section is of double open channel form with the webs not less than 40 mm apart
(B) Overall depth and width of the steel section do not exceed 750 and 450 mm respectively
(C) Beam is solidly encased in concrete with 10 mm aggregate having 28 days strength 160
kg/cm2
(D) All the above
Answer: Option D
Question No. 27
The bracing provided in the plane of end posts is called
(A) Sway bracing
(B) Portal bracing
(C) Top lateral bracing
(D) Bottom lateral bracing
Answer: Option B
Question No. 28
In a built up beam actual bending compressive stress fbc is given by (when y1 is
the distance of the edge of the beam from the neutral axis).
(A) fbc = (M/Ixx) × y
(B) fbc = (Ixx/M) × y
(C) fbc = (Ixx/M) + y
(D) fbc = (M/Ixx) + y
Answer: Option A
Question No. 29
If the thickness of a structural member is small as compared to its length and
width, it is classified as
(A) One dimensional
(B) Two dimensional
(C) Three dimensional
(D) None of these
Answer: Option B
Question No. 30
The statical method of plastic analysis satisfies
(A) Equilibrium and mechanism conditions
(B) Equilibrium and plastic moment conditions
(C) Mechanism and plastic moment conditions
(D) Equilibrium condition only
Answer: Option B
Question No.
31 Lug angle
is
(A) Used with single angle member
(B) Not used with double angle member
(C) Used with channel member
(D) All the above
Answer: Option D
Question No. 32
Compression members composed of two channels back-to-back and separated
by a small distance are connected together by riveting so that the minimum
slenderness ratio of each member between the connections, does not exceed
(A) 40
(B) 50
(C) 60
(D) 70
Answer: Option A
Question No. 33
The connection of intermediate vertical stiffeners to the web, not subjected to
external loads, shall be designed for a minimum shear force (kN/m) of
(A) 75 t²/h
(B) 125 t3/h²
(C) 125 t²/h
(D) 175 t²/h
Where, t = the web thickness in mm and h = the outstand of stiffener in mm
Answer: Option C
Question No. 34
When the upper column does not provide full bearing area over lower column,
the column splice is provided with the following assumption
(A) Bearing plate is assumed as a short beam to transmit the axial load to the lower column
section
(B) Axial load is assumed to be taken by flanges
(C) Load transmitted from the flanges of upper column and reactions from the flanges of lower
columns are equal and form a couple
(D) All the above
Answer: Option D
Question No. 35
For the economical design of a combined footing to support two equal column
loads, the projections of beams in lower tier are kept such that bending moment
under column is equal to
(A) Bending moment at the centre of the beam
(B) Half the bending moment at the centre of the beam
(C) Twice the bending moment at the centre of the beam
(D) None of these
Answer: Option A
Question No. 36
The allowable shear stress in the web of mild steel beams decreases with
(A) Decrease in h/t ratio
(B) Increase in h/t ratio
(C) Decrease in thickness
(D) Increase in height
Where 'h is thickness
Answer: Option B
Question No. 37
On eccentrically loaded columns, the equivalent axial load may be obtained by
(A) Adding the axial load, eccentric load, the product of the bending moment due to eccentric
load and the appropriate bending factor
(B) Adding the axial load and eccentric load and subtracting the product of bending moment
and appropriate bending factor
(C) Dividing the sum of axial load and eccentric load by the product of the bending moment and
appropriate bending factor
(D) None of these
Answer: Option A
Question No. 38
Stiffeners are used in a plate girder
(A) To reduce the compressive stress
(B) To reduce the shear stress
(C) To take the bearing stress
(D) To avoid bulking of web plate
Answer: Option D
Question No. 39
As compared to field rivets, the shop rivets are
(A) Stronger
(B) Weaker
(C) Equally strong
(D) Any of the above
Answer: Option A
Question No. 40
A fillet weld whose axis is parallel to the direction of the applied load, is known as
(A) Diagonal filler weld
(B) End fillet weld
(C) Side fillet weld
(D) All the above
Answer: Option C
Question No. 41
In a truss girder of a bridge, a diagonal consists of mild steel flat 4001.S.F. and
carries a pull of 80 tonnes. If the gross-diameter of the rivet is 26 mm, the number
of rivets required in the splice, is
(A) 6
(B) 7
(C) 8
(D) 9
Answer: Option C
Question No. 42
When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
(A) Black bolt
(B) Ordinary unfinished bolt
(C) Turned and fitted bolt
(D) High strength bolt
Answer: Option D
Question No. 43
Factor of safety is the ratio of
(A) Yield stress to working stress
(B) Tensile stress to working stress
(C) Compressive stress to working stress
(D) Bearing stress to working stress
Answer: Option A
Question No. 44
The size of a butt weld is specified by the effective throat thickness
which in the case of incomplete penetration, is taken as
(A) ½ of the thickness of thicker part
(B) ¾ of the thickness of thicker part
(C) ¾ of the thickness of thinner part
(D) 7/8 of the thickness of thinner part
Answer: Option D
Question No. 45
The best arrangement to provide unified behaviour in built up steel columns is by
(A) Lacing
(B) Battening
(C) Tie plates
(D) Perforated cover plates
Answer: Option A
Question No. 46
The ratio of shearing stress to shearing strain within elastic limit, is known as
(A) Modulus of elasticity
(B) Shear modulus of elasticity
(C) Bulk modulus of elasticity
(D) Tangent modulus of elasticity
Answer: Option B
Question No. 47
In a built up section carrying a tensile force, the flanges of two channels are turned outward
(A) To simplify the transverse connections
(B) To minimise lacing
(C) To have greater lateral rigidity
(D) All the above
Answer: Option C
Question No. 48
The overlap of batten plates with the main members in welded connections should be more than
(A) 3 t
(B) 4 t
(C) 6 t
(D) 8 t
t
Answer: Option B
Question No. 49
A fillet weld may be termed as
(A) Mitre weld
(B) Concave weld
(C) Convex weld
(D) All the above
Answer: Option D
Question No. 50
Modified moment of inertia of sections with a single web, is equal to moment of
inertia of the section about Y-Y axis at the point of maximum bending moment
and is multiplied by the ratio of
(A) Area of compression flange at the minimum bending moment to the corresponding area at
the point of maximum bending moment
(B) Area of tension flange at the minimum bending moment of the corresponding area at the
point of maximum bending moment
(C) Total area of flanges at the maximum bending moment to the corresponding area at the
point of maximum bending moment
(D) None of these
Answer: Option C
Question No. 51
Gantry girders are designed to resist
(A) Lateral loads
(B) Longitudinal loads and vertical loads
(C) Lateral, longitudinal and vertical loads
(D) Lateral and longitudinal loads
Answer: Option C
Question No. 52
The distance between e.g. of compression and e.g. of tension flanges of a plate girder, is known as
(A) Overall depth
(B) Clear depth
(C) Effective depth
(D) None of these
Answer: Option C
Question No. 53
The effective length of a compression member of length L held in position at
both ends but not restrained in direction, is
(A) L
(B) 0.67 L
(C) 0.85 L
(D) 1.5 L
Answer: Option A
Question No. 54
The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as
(A) 0.65 kN/m²
(B) 0.75 kN/m²
(C) 1.35 kN/m²
(D) 1.50 kN/m²
Answer: Option A
Question No. 55
Pick up the correct statement from the following:
(A) Dead load includes self-weight of the structure and super-imposed loads permanently
attached to the structure
(B) Dead loads change their positions and vary in magnitude
(C) Dead loads are known in the beginning of the design
(D) None of these
Answer: Option A
Question No. 56
Design of a riveted joint is based on the assumption:
(A) Bending stress in rivets is accounted for
(B) Riveted hole is assumed to be completely filled by the rivet
(C) Stress in the plate in not uniform
(D) Friction between plates is taken into account
Answer: Option B
Question No. 57
Steel tanks are mainly designed for
(A) Weight of tank
(B) Wind pressure
(C) Water pressure
(D) Earthquake forces
Answer: Option C
Question No. 58
The cross-section of a standard fillet is a triangle whose base angles are
(A) 45° and 45°
(B) 30° and 60°
(C) 40° and 50°
(D) 20° and 70°
Answer: Option A
Question No. 59
If N is the number of rivets in the joint, the strength of a riveted joint against
shearing of rivets, is given by
(A) Ps = N d2 × Ps
(B) Ps = N × (d × t × ps)
(C) Ps = N × (p - d) × t × Ps
(D) Ps = N × (P + d) × t × ps
Answer: Option A
Question No. 60
The sway bracing is designed to transfer
(A) 2Vi % of the top panel wind load to bottom bracing
(B) 10% of the top panel wind load to bottom bracing
(C) 25% of the top panel wind load to bottom bracing
(D) 50% of the top panel wind load to bottom bracing
Answer: Option D
Question No. 61
Column footing is provided
(A) To spread the column load over a larger area
(B) To ensure that intensity of bearing pressure between the column footing and soil does not
exceed permissible bearing capacity of the soil
(C) To distribute the column load over soil through the column footing
(D) All the above
Answer: Option D
Question No. 62
Cold driven rivets range from
(A) 6 to 10 mm in diameter
(B) 10 to 16 mm in diameter
(C) 12 to 22 mm in diameter
(D) 22 to 32 mm in diameter
Answer: Option C
Question No. 63
The mechanism method of plastic analysis satisfies
(A) Equilibrium and mechanism conditions
(B) Equilibrium and plastic moment conditions
(C) Mechanism and plastic moment conditions
(D) Equilibrium condition only
Answer: Option A
Question No. 64
Rolled steel beams are designated by Indian Standard series and its
(A) Weight per metre and depth of its section
(B) Depth of section and weight per metre
(C) Width of flange and weight per metre
(D) Weight per metre and flange width
Answer: Option B
Question No. 65
When plates are exposed to weather, tacking rivets are provided at a pitch in
line not exceeding (where t is the thickness of the outside plate).
(A) 8 t
(B) 16 t
(C) 24 t
(D) 32 t
Answer: Option B
Question No. 66
For a compression member with double angle section, which of the following
section will give larger value of minimum radius of gyration?
(A) Equal angles back to back
(B) Unequal legged angles with long legs back to back
(C) Unequal legged angles with short legs back to back
(D) Both (B) and (C)
Answer: Option B
Question No. 67
Pick up the correct statement from the following:
(A) The minimum pitch should not be less than 2.5 times the gross diameter of the river
(B) The minimum pitch should not be less than 12 times the gross diameter of the rivet
(C) The maximum pitch should not exceed 10 times the thickness or 150 mm whichever is less in
compression
(D) All the above
Answer: Option A
Question No. 68
The gross section of the web of a beam is defined as
(A) Depth of the beam multiplied by its web thickness
(B) Width of the flange multiplied by its web thickness
(C) Sum of the flange width and depth of the beam multiplied by the web thickness
(D) None of these
Answer: Option A
Question No. 69
Pitch of tacking rivets, when double angles connected back to back and acting as
tension members should not be more than
(A) 500 mm
(B) 600 mm
(C) 1000 mm
(D) 300 mm
Answer: Option C
Question No. 70
For a steel grillage footing to support two unequal column loads
(A) Line of action of the resultant of two column loads, is made to coincide with the centre of
gravity of the base of the footing
(B) Trapezoidal shape is used for the base footing
(C) Projections of beams on either side in lower tier are such that bending moments under
columns are equal
(D) All the above
Answer: Option D
Question No. 71
In a tension member if one or more than one rivet holes are off the line, the failure
of the member depends upon:
(A) Pitch
(B) Gauge
(C) Diameter of the rivet holes
(D) All the above
Answer: Option D
Question No. 72
The heaviest I-section for same depth is
(A) ISMB
(B) ISLB
(C) ISHB
(D) ISWB
Answer: Option C
Question No. 73
The effective length of a compression member of length L, held in position
and restrained in direction at both ends, is
(A) L
(B) 0.67 L
(C) 0.85 L
(D) 1.5 L
Answer: Option B
Question No. 74
Efficiency of a riveted joint is defined as the ratio of
(A) Least strength of a riveted joint to the strength of solid plate
(B) Greatest strength of a riveted joint to the strength of solid plate
(C) Least strength of a riveted plate to the greatest strength of the riveted joint
(D) All the above
Answer: Option D
Question No. 75
By providing sufficient edge distance, which of the following failures of riveted
joint can be avoided?
(A) Tension failure of the plate
(B) Shear failure of the rivet
(C) Shear failure of the plate
(D) Crushing failure of the rivet
Answer: Option C
Question No. 76
The maximum tensile and compressive bending stress in extreme fibres of
rolled I-sections and channels on the effective section, is
(A) 1500 kg/cm2
(B) 1420 kg/cm2
(C) 1650 kg/cm2
(D) 2285 kg/cm2
Answer: Option C
Question No. 77
When the ratio of the moment M to axial load P is greater than L/6, the
resultant of the compressive bearing pressure which acts at a distance Y
from one side, is given by
(A) y = (L/3) - (M/P)
(B) y = (L/2) - (P/M)
(C) y = (L/2) + (M/P)
(D) y = (L/3) + (M/P)
Answer: Option B
Question No. 78
A circular column section is generally not used in actual practice because
(A) It is uneconomical
(B) It cannot carry the load safely
(C) It is difficult to connect beams to the round sections
(D) All of the above
Answer: Option C
Question No. 79
The safe working pressure for a spherical vessel 1.5 m diameter and having 1.5
cm thick wall not to exceed tensile stress 50kg/cm2, is
(A) 16 kg/cm2
(B) 18 kg/cm2
(C) 20 kg/cm2
(D) 22 kg/cm2
Answer: Option C
Question No. 80
Rise of a Jack arch is kept about
(A) 1/2 to 1/3 of the span
(B) 1/3 to 1/4 of the span
(C) 1/4 to 1/8 of the span
(D) 1/8 to 1/12 of the span
Answer: Option D
Question No. 81
Battening is preferable when the
(i) Column carries axial load only
(ii) Space between the two main components is not very large
(iii) Column is eccentrically loaded
The correct answer is
(A) Only (i)
(B) Only (iii)
(C) (i) and (ii)
(D) (ii) and (iii)
Answer: Option C
Question No. 82
For a steel member of slenderness ratio 350, the allowable stress is 76 kg/cm2 if it
is
(A) HTW grade of thickness exceeding 32 mm
(B) HT grade of thickness exceeding 45 mm
(C) HT grade of thickness not exceeding 45 mm
(D) All the above
Answer: Option D
Question No. 83
The main type of butt joints, is a double cover
(A) Shear riveted joint
(B) Chain riveted joint
(C) Zig-zag riveted joint
(D) All the above
Answer: Option D
Question No. 84
Bearing stiffener in a plate girder is used to
(A) Transfer the load from the top flange to the bottom one
(B) Prevent buckling of web
(C) Decrease the effective depth of web
(D) Prevent excessive deflection
Answer: Option B
Question No. 85
The central deflection of a simply supported steel beam of length L with a
concentrated load W at the centre, is
(A) WL3/3EI
(B) WL4/3EI
(C) WL3/48EI
(D) 5WL4/384EI
Answer: Option C
Question No. 86
If d is the distance between the flange angles,
(A) Vertical stiffeners are provided in steel plate girders if the web is less than d/85
(B) Vertical stiffeners are provided in high tensile steel plate girders if the web is less than d/175
(C) Horizontal stiffeners are provided in steel plate girders if the web is less than d/200
(D) All the above
Answer: Option D
Question No. 87
Area of openings for buildings of large permeability is more than
(A) 10% of wall area
(B) 20% of wall area
(C) 30% of wall area
(D) 50% of wall area
Answer: Option B
Question No. 88
In case horizontal stiffeners are not used, the distance between vertical legs of
flange angles at the top and bottom of a plate girder, is known as
(A) Overall depth
(B) Clear depth
(C) Effective depth
(D) None of these
Answer: Option B
Question No. 89
Pick up the correct statement from the following:
(A) The steel beams placed in plain cement concrete, are known as reinforced beams
(B) The filler joists are generally continuous over three-supports only
(C) Continuous fillers are connected to main beams by means of cleat angles
(D) Continuous fillers are supported by main steel beams
Answer: Option D
Question No. 90
The diameter of base of conical flare of a steel stack is
(A) Less than d
(B) Equal to d
(C) More than d
(D) Any of the above
is the diameter of the cylindrical part
Answer: Option C
Question No. 91
The effective length of a compression member of length L held in position and
restrained in direction at one end and effectively restrained in direction but not
held in position at the other end, is
(A) L
(B) 0.67 L
(C) 0.85 L
(D) 1.5 L
Answer: Option A
Question No. 92
Working shear stress on the gross area of a rivet as recommended by Indian Standards, is
(A) 785 kg/cm2
(B) 1025 kg/cm2
(C) 2360 kg/cm2
(D) None of these
Answer: Option B
Question No. 93
The least dimensio D
(A) 0.5 D
(B) 0.68 D
(C) 0.88 D
(D) D
Answer: Option C
Question No. 94
The critical load for a column of length I hinged at both ends and having flexural
rigidity El, is given by
(A) Pc = ²EI/l²
(B) Pc = /l²
(C) Pc = /I²
(D) None of these
Answer: Option A
Question No. 95
Length of an outstanding leg of a vertical stiffener, may be taken equal to
(A) 1/10th of clear depth of the girder plus 15 mm
(B) 1/20th of clear depth of the girder plus 20 mm
(C) 1/25th of clear depth of the girder plus 25 mm
(D) 1/30th of clear depth of the girder plus 50 mm
Answer: Option C
Question No. 96
In case of plastic design, the calculated maximum shear capacity of a beam as per IS: 800 shall be
(A) 0.55 Aw.fy
(B) 0.65 Aw.fy
(C) 0.75 Aw.fy
(D) 0.85 Aw.fy
Where, Aw = effective cross-sectional area resisting shear fy = yield stress of the steel
Answer: Option A
Question No. 97
If the depth of two column sections is equal, then the column splice is provided
(A) With filler plates
(B) With bearing plates
(C) With filler and hearing plates
(D) None of these
Answer: Option D
Question No. 98
On steel structures the dead load is the weight of
(A) Steel work
(B) Material fastened to steel work
(C) Material supported permanently
(D) All the above
Answer: Option D
Question No. 99
A steel beam supporting loads from the floor slab as well as from wall is termed as
(A) Stringer beam
(B) Lintel beam
(C) Spandrel beam
(D) Header beam
Answer: Option C
Question No. 100
The area Ap of cover plates in one flange of a built up beam, is given by
(A) Ap = Zreqr + Zbeam/h
(B) Ap = Zreqr + Zbeam/A
(C) Ap = Zreqr × Zbeam/h
(D) Ap = Zreqr - Zbeam/h
Answer: Option D
Question No. 101
The economical depth d of a web plate in which allowable bearing stress is fb,
and the maximum bending moment is M, as suggested by Rawater and Clark, is
(A) d = (M/fb)
(B) d = 1.5 (M/fb)
(C) d = 2.5 (M/fb)
(D) d = 4.5 (M/fb)
Answer: Option D
Question No. 102
Bending compressive and tensile stresses respectively are calculated based on
(A) Net area and gross area
(B) Gross area and net area
(C) Net area in both cases
(D) Gross area in both cases
Answer: Option B
Question No. 103
The thickness t of a single flat lacing should not be less than
(A) 1/30th length between inner end rivets
(B) 1/40th length between inner end rivets
(C) 1/50th length between inner end rivets
(D) 1/60th length between inner end rivets
Answer: Option B
Question No. 104
Minimum pitch of the rivets shall not be less than
(A) 1.5 d
(B) 2.0 d
(C) 2.5 d
(D) 3.0 d
Where d is gross diameter of rivet
Answer: Option C
Question No. 105
Tongue plates are provided in a steel girder at
(A) The upper flange
(B) The lower flange
(C) The upper end of the web
(D) The upper and lower ends of the web
Answer: Option D
Question No. 106
For steel members exposed to weather and not accessible for repainting, the
thickness of steel should not be less than
(A) 4.5 mm
(B) 6 mm
(C) 8 mm
(D) 10 mm
Answer: Option C
Question No. 107
The slenderness ratio of a column supported throughout its length by a masonry wall is
(A) Zero
(B) 10
(C) 100
(D) Infinity
Answer: Option A
Question No. 108
The main assumption of the method of simple design of steel frame work, is:
(A) Beams are simply supported
(B) All connections of beams, girders and trusses are virtually flexible
(C) Members in compression are subjected to forces applied at appropriate eccentricities
(D) All the above
Answer: Option D
Question No. 109
Outstanding length of a compression member consisting of a channel, is measured as
(A) Half of the nominal width
(B) Nominal width of the section
(C) From the edge to the first row of rivets
(D) None of these
Answer: Option B
Question No. 110
The use of tie plates in laced columns is
(A) Prohibited
(B) Not prohibited
(C) Permitted at start and end of lacing system only
(D) Permitted between two parts of the lacing
Answer: Option C
Question No. 111
According to IS : 800-1962 the permissible bending stress in steel slab plates, is
(A) 1500 kg/cm2
(B) 1420 kg/cm2
(C) 2125 kg/cm2
(D) 1890 kg/cm2
Answer: Option D
Question No. 112
The side thrust T on the tie rods provided at the end beam of jack arch of rise R,
is calculated from the formula
(A) T = WL/4R
(B) T = WR/8L
(C) T = WL/8R
(D) T = WL/2R
Answer: Option C
Question No. 113
Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds
(A) 50 t
(B) 85 t
(C) 200 t
(D) 250 t
t
Answer: Option B
Question No. 114
The minimum pitch of rivet holes of diameter d should not be less than
(A) d
(B) 1.25 d
(C) 1.5 d
(D) 2.5 d
Answer: Option D
Question No. 115
Design of a riveted joint, is based on the assumption:
(A) Load is uniformly distributed among all the rivets
(B) Shear stress on a rivet is uniformly distributed over its gross area
(C) Bearing stress in the rivet is neglected
(D) All the above
Answer: Option D
Question No. 116
For the buildings having a low permeability, the internal wind pressure acting
normal to the wall and roof surfaces is taken as
(A) Zero
(B) ±0.2 p
(C) ± 0.5 p
(D) ±0.7 p
Where p is basic wind pressure
Answer: Option B
Question No. 117
If is the maximum allowable bending stress in a tension member whose
radius of gyration is and depth is 2y, the required
cross sectional area is given by
(A) A = My/fr²
(B) A = My²/fr²
(C) A = My/fr
(D) A = My/f²r²
Answer: Option A
Question No. 118
The load on a lintel is assumed as uniformly distributed if the height of the
masonry above it, is upto a height of
(A) The effective span
(B) 1.25 times the effective span
(C) 1.50 times the effective span
(D) 2.0 times the effective span
Answer: Option B
Question No. 119
Maximum pitch of rivets, used in steel stacks, is limited to
(A) 6 t
(B) 10 t
(C) 12 t
(D) 16 t
t
Answer: Option B
Question No. 120
Diameter of a rivet hole is made larger than the diameter of the rivet by
(A) 1.0 mm for rivet diameter upto 12 mm
(B) 1.5 mm for rivet diameter exceeding 25 mm
(C) 2.0 mm for rivet diameter over 25 mm
(D) None of these
Answer: Option C
Question No. 121
According to IS: 800-1962, the coefficient of expansion of steel per degree
centigrade per unit length, is taken as
(A) 0.000008
(B) 0.000010
(C) 0.000012
(D) 0.000014
Answer: Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 122
In case of timber structures, the simple bending formula M = fz may be applied for
(A) Rectangular beams up to 300 mm depth
(B) All rectangular beams
(C) Solid circular beams only
(D) All square cross-section beams
Answer: Option A
Question No. 123
Perforated cover plates are particularly suitable for built up sections consisting of
(A) Channels placed back to back
(B) Channels placed toe to toe
(C) Four angle box section
(D) All the above
Answer: Option C
Question No. 124
If R is the reaction on the bearing plate, the minimum moment of. inertia of the
bearing stiffener provided at the support of a plate girder of overall depth D, the
maximum thickness of the compression flange T, carrying total load W, is
(A) (D²/250) × (R/W)
(B) (D3T/250) × (R/W)
(C) (DT/250) × (R/W)
(D) (DT/250) × (W/R)
Answer: Option B
Question No. 125
As per IS: 800, in the plastic design, which of the following pairs are correctly matched?
Working Loads Load factor
(i) Dead load 1.7
(ii) Dead Load + imposed load 1.7
(iii) Dead load + load due to wind or 1.3 seismic forces
(iv) Dead load + imposed load + load 1.7 due to wind or seismic forces
Of these statements
(A) (i) and (ii) are correct
(B) (i), (ii) and (iii) are correct
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
(C) (ii) and (iii) are correct
(D) Only (i) is correct
Answer: Option A
Question No. 126
Effective length of a column effectively held in position and restrained in direction at both ends, is
(A) L
(B) 0.67 L
(C) 0.85 L
(D) 1.5 L
Answer: Option B
Question No. 127
Pick up the correct statement from the following:
(A) The ends of a strut, are connected together with two rivets
(B) The members of strut will have at least two connections spaced equidistant in their length
(C) The members when separated back-to-back, the connecting rivets should pass through solid
washer or packing
(D) All the above
Answer: Option D
Question No. 128
For rivets in tension with countersunk heads, the tensile value shall be
(A) Reduced by 25 %
(B) Reduced by 33.3%
(C) Increased by 25 %
(D) Increased by 33.3 %
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 129
Effective length of a column effectively held in position and restrained in direction at
one end but neither held in position nor restrained in direction at the other end, is
(A) 1.5 L
(B) 0.67 L
(C) 0.85 L
(D) 2 L
Answer: Option D
Question No. 130
The equivalent axial load may be defined as the load which produces a stress equal to
(A) Maximum stress produced by the eccentric load
(B) Maximum stressed fibre
(C) Bending stress
(D) None of these
Answer: Option A
Question No. 131
If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of
rivets in tension will be taken as
(A) 120 mm
(B) 160 mm
(C) 200 mm
(D) 300 mm
Answer: Option B
Question No. 132
The connection of one beam to another beam by means of an angle at the bottom
and an angle at the top, is known as
(A) Unstiffened seated connection
(B) Stiffened seated connection
(C) Seated connection
(D) None of these
Answer: Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 133
The channels get twisted symmetrically with regard to its axis
(A) Parallel to flanges
(B) Parallel to web
(C) Perpendicular to flanges
(D) Perpendicular to web
Answer: Option B
Question No. 134
Bolts are most suitable to carry
(A) Shear
(B) Bending
(C) Axial tension
(D) Shear and bending
Answer: Option C
Question No. 135
Rolled steel angle sections are classified as
(A) Equal angles
(B) Unequal angles
(C) Bulb angles
(D) All the above
Answer: Option D
Question No. 136
According to I.S. : 800 - 1871, lacing bars resist transverse shear equal to
(A) 1.0% of the axial load
(B) 2.0% of the axial load
(C) 2.5% of the axial load
(D) 3.0% of the axial load
Answer: Option C
Question No. 137
The effective length of a battened strut effectively held in position at both ends but
not restrained in direction is taken as
(A) 1.8 LL
(B) 1.1 L
(C) 1.5 L
Answer: Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 138
The method of design of steel framework for greatest rigidity and economy in weight, is known as
(A) Simply design
(B) Semi-rigid design
(C) Fully rigid design
(D) None of these
Answer: Option C
Question No. 139
For a cantilever beam of length built-in at the support and restrained against
torsion at the free end, the effective projecting length is
(A) l = 0.7 L
(B) l = 0.75 L
(C) l = 0.85 L
(D) l = 0.5 L
Answer: Option B
Question No. 140
Economical depth of a plate girder corresponds to
(A) Minimum weight
(B) Minimum depth
(C) Maximum weight
(D) Minimum thickness of web
Answer: Option A
Question No. 141
Slenderness ratio of a compression member is
(A) Moment of inertia/Radius of gyration
(B) Effective length/Area of cross-section
(C) Radius of gyration/Effective length
(D) Radius of gyration/ Area of cross-section
Answer: Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 142
The least permissible clear dimension of the web of thickness t in the panel of a
plate girder, is restricted to
(A) 150 t
(B) 160 t
(C) 170 t
(D) 180 t
Answer: Option D
Question No. 143
Bearing stiffeners are provided at
(i) The supports
(ii) The mid span
(iii) The point of application of concentrated loads
The correct answer is
(A) Only (i)
(B) Both (i) and (ii)
(C) Both (i) and (iii)
(D) (i), (ii) and (iii)
Answer: Option C
Question No. 144
Web crippling generally occurs at the point where
(A) Bending moment is maximum
(B) Shearing force is minimum
(C) Concentrated loads act
(D) Deflection is maximum
Answer: Option C
Question No. 145
Pick up the correct statement from the following:
(A) The slenderness ratio of lacing bars for compression members should not exceed 145
(B) The minimum width of lacing bar connected with rivets of nominal diameter 16 mm, is kept
50 mm
(C) The minimum thickness of a flat lacing bar is kept equal to one-fortieth of its length between
inner end rivets
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 146
The basic wind speed is specified at a height 'h' above mean ground level in an
open terrain. The value of 'h' is
(A) 10 m
(B) 20 m
(C) 25 m
(D) 50 m Answer:
Option A
Question No. 147
If d is the distance between the flange angles, the vertical stiffeners in plate girders
are spaced not greater than
(A) d
(B) 1.25 d
(C) 1.5 d
(D) 1.75 d
Answer: Option C
Question No. 148
If d is the distance between the flange angles of a plate girder, vertical stiffeners
are provided at a distance not greater than
(A) d but not less than 0.20 d
(B) 1.25 d but not less than 0.33 d
(C) 1.5 d but not less than 0.33 d
(D) 2.0 d but not less than 0.50 d
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 149
The allowable tensile stress in structural mild steel plates for steel tank is assumed as
(A) 95.0 MPa on net area
(B) 105.5 MPa on net area
(C) 105.5 MPa on gross area
(D) 150.0 MPa on gross area
Answer: Option B
Question No. 150
A second horizontal stiffener is always placed at the neutral axis of the girder if
the thickness of the web is less than
(A) d/250 for structural steel
(B) d/225 for high tensile steel
(C) Both (c) and (b)
(D) Neither (a) nor (b)
Answer: Option C
Question No. 151
The strength of ISA 125 = 75 × 10 mm used as a tie member with its longer leg
connected at the ends by 27 mm diameter rivets, is
(A) 26,000 kg
(B) 26,025 kg
(C) 26,050 kg
(D) 26,075 kg
Answer: Option D
Question No. 152
The effect of racking forces is considered in the design of
(i) Lateral braces
(ii) Chord members
The correct answer is
(A) Only (i)
(B) Only (ii)
(C) Both (i) and (ii)
(D) None of the above
Answer: Option A
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 153
For a column of height fixed in position and direction both at its top and
bottom, its effective length, is
(A) L
(B) L
(C) ½ L
(D) 2L
Answer: Option C
Question No. 154
As per ISI, rolled steel beam sections are classified into
(A) Two series
(B) Three series
(C) Four series
(D) Five series
Answer: Option D
Question No. 155
Shape factor is a property which depends
(A) Only on the ultimate stress of the material
(B) Only on the yield stress of the material
(C) Only on the geometry of the section
(D) Both on the yield stress and ultimate stress of material
Answer: Option C
Question No. 156
A tension member, if subjected to possible reversal of stress due to wind, the
slenderness ratio of the member should not exceed
(A) 180
(B) 200
(C) 300
(D) 350
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 157
Pick up the correct statement from the following:
(A) Tacking rivets are used if the minimum distance between centres of two adjacent rivets
exceeds 12 t or 200 mm, whichever is less
(B) Tacking rivets are not considered to calculate stress
(C) Tacking rivets are provided throughout the length of a compression member composed of
two components back to back
(D) All the above
Answer: Option D
Question No.
158 Lug angles
(A) Are used to reduce the length of connection
(B) Are unequal angles
(C) Increases shear lag
(D) All the above
Answer: Option A
Question No. 159
The Indian standard code which deals with steel structures, is
(A) IS : 875
(B) IS : 800
(C) IS : 456
(D) IS : 1893
Answer: Option B
Question No. 160
Under a concentrated load, bearing stress fb in a beam is given by (where b is
the length of the bearing plate and h is the depth of the root of the fillet).
(A) fb = W/(b + h tw
(B) fb = W/(b + 2h tw
(C) fb = W/(b + 2h tw
(D) fb = W/(b + h tw
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 161
When the axis of load lies in the plane of rivet group, then the rivets are subjected to
(A) Only shear stresses
(B) Only tensile stresses
(C) Both (A) and (B)
(D) None of the above
Answer: Option A
Question No. 162
For double angles carrying tension, placed back to back and connected to either
side of the gusset plate, the sectional area of the section, is equal to cross sectional
area of
(A) The section
(B) The section plus area of rivet holes
(C) The section minus area of rivet holes
(D) The section multiplied by the area of the rivet hole
Answer: Option C
Question No. 163
The beam outside a wall upto floor level above it, is known as
(A) Rafter
(B) Purlin
(C) Spandrel beam
(D) Lintel Answer:
Option C
Question No. 164
In the cross-section of a weld, throat is the
(A) Minimum dimension
(B) Average dimension
(C) Maximum dimension
(D) None of the above
Answer: Option A
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 165
The rivets which are heated and then driven in the field, are known
(A) Power driven shop rivets
(B) Power driven field rivets
(C) Hand driven rivets
(D) Cold driven rivets
Answer: Option B
Question No. 166
If fbt and fc are the co-existent bending tensile stress and shear stress in a member,
the equivalent stress fc is
(A) fbt² + fc²)
(B) fbt² + ½fc²)
(C) fbt² + 3fc²)
(D) fbt² - 3fc²)
Answer: Option C
Question No. 167
According to IS: 800, in the Merchant Rankine formula the value of imperfection index (n) is
(A) 1.0
(B) 1.4
(C) 1.8
(D) 2.0
Answer: Option B
Question No. 168
When a large value of radius of gyration is not requiredChannels are placed back to back
(A) Channel flanges are kept inward
(B) Channel flanges are kept outward
(C) None of these
nswer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 169
The ratio of hydrostatic stress to the volumetric strain within the elastic range, is called
(A) Modulus of elasticity
(B) Shear modulus of elasticity
(C) Bulk modulus of elasticity
(D) All the above
Answer: Option D
Question No. 170
Minimum thickness of web in a plate girder, when the plate is accessible and also
exposed to weather, is
(A) 5 mm
(B) 6 mm
(C) 8 mm
(D) 10 mm
Answer: Option B
Question No. 171
If d is the distance between the flange angles, the vertical stiffeners in plate girders
without horizontal stiffeners, are spaced at a distance not less than
(A) 0.15 d
(B) 0.22 d
(C) 0.33 d
(D) 0.44 d
Answer: Option C
Question No. 172
Long column is
one
(A) Which is more than 3 m long
(B) Whose lateral dimension is less than 25 cm
(C) Which is free at its top
(D) Which has a ratio of effective length and least lateral dimension more than 15
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 173
To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost
of purlins shall be
(A) 1
(B) 2
(C) 3
(D) 4
Answer: Option B
Question No. 174
When the length of a tension member is too long
(A) A wire rope is used
(B) A rod is used
(C) A bar is used
(D) A single angle is used
Answer: Option C
Question No. 175
In factory buildings, the horizontal beams spanning between the wall columns
supporting a wall covering, are called
(A) Stringers
(B) Trimmers
(C) Girts
(D) Lintels
Answer: Option C
Question No. 176
The minimum thickness of plates in a steel stack should be
(A) 4 mm
(B) 5 mm
(C) 6 mm
(D) 8 mm Answer:
Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 177
To keep the intensity of bearing pressure between the column base and
concrete, compressive throughout the length of the column base, the ratio of
the moment M to axial load P should be
(A) < L/3
(B) < L/6
(C) > L/3
(D) > L/6 Answer:
Option B
Question No. 178
A structural member subjected to tensile force in a direction parallel to its
longitudinal axis, is generally known as
(A) A tie
(B) A tie member
(C) A tension member
(D) All the above
Answer: Option D
Question No. 179
Compression force in two end posts, the pin of a rocker bearing in a bridge is designed for
(A) Bearing and shear
(B) Bending and shear
(C) Bearing and bending
(D) Bearing, shear and bending
Answer: Option D
Question No. 180
According to the Unwin's formula, if is thickness of the plate in mm, the
nominal diameter of the rivet, is
(A) d = 1.91 t
(B) d = 1.91 t2
(C) d = 1.91 t
(D) d = 1.91 t
Answer: Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 181
If the area of cross-section of a single angle discontinuous strut is 30 cm2 and
allowable working stress corresponding to its slenderness ratio is 625 kg/cm2,
the safe load carrying capacity of the member, is
(A) 10 tonnes
(B) 12 tonnes
(C) 15 tonnes
(D) 18 tonnes
Answer: Option C
Question No. 182
The ratio of plastic section modulus to elastic section modulus
(A) Is equal to 1
(B) Is always less than 1
(C) Is always greater than 1
(D) Can be less than 1
Answer: Option C
Question No. 183
Bulb angles are used in
(A) Column building
(B) Bridge building
(C) Ship building
(D) Water tank building
Answer: Option C
Question No. 184
The diameter of a bolt hole is taken as the nominal diameter of the bolt plus
(A) 1.0 mm
(B) 1.2 mm
(C) 1.4 mm
(D) 1.6 mm
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 185
The minimum thickness of a steel plate, which is directly exposed to weather and is
not accessible for cleaning and repainting, should be:
(A) 4.5 mm
(B) 6 mm
(C) 8 mm
(D) 10 mm
Answer: Option C
Question No. 186
For determination of allowable stress in axial compression, Indian Standard
Institution has adopted
(A) Euler's formula
(B) Rankine formula
(C) Perry Robertson formula
(D) Secant formula
Answer: Option D
Question No. 187
Rolled steel beams
are:
(A) Mainly used to resist bending stress
(B) Used as independent sections to resist compressive stress
(C) Used as independent sections to resist tensile stress
(D) All the above
Answer: Option D
Question No. 188
When the axis of load lies in the plane of rivet group, then the most heavily
loaded rivet will be the one which
moment in any rivet.)
(A) Is at the maximum distance from CG of the rivet group
(B) Is at the minimum distance from CG of the rivet group
(C) Gives the maximum angle between the two forces Fa and Fm
(D) Gives the minimum angle between the two forces Fa and Fm
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 189
According to IS : 800 - 71, the minimum thickness of a vertically stiffened web
plate, shall not be less than
(A) d/85
(B) d/200
(C) d/225
(D) d/250 Answer:
Option D
Question No. 190
A web plate is called unstiffened if the ratio of clear depth to thickness is less than
(A) 35
(B) 50
(C) 65
(D) 85
Answer: Option D
Question No. 191
A butt weld is specified by
(A) Effective throat thickness
(B) Plate thickness
(C) Size of weld
(D) Penetration thickness
Answer: Option A
Question No. 192
The most economical section for a column, is
(A) Rectangular
(B) Solid round
(C) Flat strip
(D) Tubular section
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 193
In rolled steel beams, shear force is mostly resisted by
(A) Web only
(B) Flanges only
(C) Web and flanges together
(D) None of these
Answer: Option A
Question No. 194
If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be
(A) 40 mm
(B) 60 mm
(C) 80 mm
(D) 100 mm
Answer: Option B
Question No. 195
The minimum edge distance of a rivet line connecting two or more plates, is kept
equal to 37 mm plus (where t is the thickness in mm of the thinner outside plate).
(A) 2 t
(B) 4 t
(C) 6 t
(D) 8 t
Answer: Option B
Question No. 196
For simply supported beams, the maximum permitted deflection, is
(A) 1/325 of the span
(B) 1/350 of the span
(C) 1/375 of the span
(D) 1/400 of the span
Answer: Option A
Question No. 197
Minimum spacing of vertical stiffeners is limited to
(A) d/4
(B) d/3
(C) d/2
(D) 2d/3
Where d is the distance between flange angles
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 198
The rolled steel I-sections are most commonly used as beams because these provide
(A) Large moment of inertia with less cross-sectional area
(B) Large moment of resistance as compared to other section
(C) Greater lateral stability
(D) All the above
Answer: Option D
Question No. 199
If P is the wind pressure in kg/cm2, v is the velocity in km/hour and K is
a constant of proportionality, then
(A) P = K/v2
(B) v = K/P2
(C) P = Kv2
(D) P = Kv
Answer: Option C
Question No. 200
As per IS : 875, for the purposes of specifying basic wind velocity, the country
has been divided into
(A) 4 zones
(B) 5 zones
(C) 6 zones
(D) 7 zones
Answer: Option C
Question No. 201
Net sectional area of a tension member, is equal to its gross section area
(A) Plus the area of the rivet holes
(B) Divided by the area of rivet holes
(C) Multiplied by the area of the rivet holes
(D) None of these
Answer: Option D
Question No. 202
For a single section used as a tension member, the given area is assumed
(A) 20% to 30% in excess of the net area
(B) 30% to 40% in excess of the net area
(C) 40% to 50% in excess of the net area
(D) 50% to 60% in excess of the net area
Answer: Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 203
Study the following statements.
(i) Top lateral bracing prevents the sides-way buckling of the chord.
(ii) Sway bracing keeps the rectangular shape of the bridge cross-section.
(iii) Sway bracing transfers the load from top of end posts to bearings.
The correct answer is
(A) Only (i)
(B) Both (i) and (ii)
(C) Both (i) and (iii)
(D) All (i), (ii) and (iii)
Answer: Option B
Question No. 204
The effective length of a weld, is taken as the actual length
(A) Minus the size of weld
(B) Minus twice the size of weld
(C) Plus the size of weld
(D) Plus twice the size of weld
Answer: Option B
Question No. 205
The greatest gauge of long rivets should not exceed (where d is the diameter of the holes).
(A) 2 d
(B) 4 d
(C) 6 d
(D) 8 d
Answer: Option D
Question No. 206
The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
(A) 1.5
(B) 1.7
(C) 2.0 (D)
2.34
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 207
Rolled steel Tee-sections are used
(A) As columns
(B) With flat strips to connect plates in steel rectangular tanks
(C) As built up sections to resist axial tension
(D) None of these
Answer: Option B
Question No. 208
Water pressure in a 80 cm water main is 10 kg/cm2. The minimum thickness of the
metal required for the water main, not to be stressed more than 200 kg/cm2, is
(A) 1 cm
(B) 1.5 cm
(C) 2 cm
(D) 2.5 cm
Answer: Option C
Question No. 209
Which of the following types of riveted joint is free from bending stresses?
(A) Lap joint
(B) Butt joint with single cover plate
(C) Butt joint with double cover plates
(D) None of the above
Answer: Option C
Question No. 210
The beams supporting the steps of a stair are generally known as Headers
(A) Trimmers
(B) Stringers
(C) Spandrel beams
Answer: Option C
Question No. 211
With usual notations of the letters, the shear stress fs at any point of the cross-section is given by
(A) fs =FQ/It
(B) fs =Ft/IQ
(C) fs =It/FQ
(D) fs =IF/Qt
Answer: Option A
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 212
According to IS Specifications, the maximum pitch of rivets in compression is
(A) Lesser of 200 mm and 12 t
(B) Lesser of 200 mm and 16 t
(C) Lesser of 300 mm and 32 t
(D) Lesser of 3 00 mm and 24 t
Where t is thickness of thinnest outside plate or angle Answer:
Option A
Question No. 213
Poisson's ratio for steel within elastic limit, ranges from
(A) 0.15 to 0.20
(B) 0.25 to 0.24
(C) 0.25 to 0.33
(D) 0.33 to 0.35
Answer: Option C
Question No. 214
The minimum width B of a solid casing for a cased beam, is equal to
(A) B = b + 25 mm
(B) B = b + 50 mm
(C) B = b + 75 mm
(D) B = b + 100 mm
Answer: Option D
Question No. 215
Horizontal stiffener in a plate girder is provided to safeguard against
(A) Shear buckling of web plate
(B) Compression buckling of web plate
(C) Yielding
(D) All of the above
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 216
If W and L are the total superimposed load and the span of a plate girder
in metres, the approximate self weight (W) of the girder, is taken as
(A) M = WL/100
(B) M = WL/200
(C) M = WL/300
(D) M = WL/400
Answer: Option C
Question No. 217
Maximum permissible slenderness ratio of a member normally acting as a tie in a roof truss, is
(A) 180
(B) 200
(C) 250
(D) 350
Answer: Option D
Question No. 218
Normally, the angle of roof truss with asbestos sheets should not be less than
(A) 26½°
(B) 30°
(C) 35°
(D) 40°
Answer: Option B
Question No. 219
An imaginary line along which rivets are placed, is known as
(A) Rivet line
(B) Back line
(C) Gauge line
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 220
Pick up the correct statement from the following:
(A) Loaded columns are supported on column bases
(B) Column bases transmit the column load to the concrete foundation
(C) Column load is spread over a large area on concrete
(D) All the above
Answer: Option D
Question No. 221
The capacity of the smallest pressed steel tank is 1000 litre
(A) 1650 litre
(B) 1950 litre
(C) 2450 litre
Answer: Option C
Question No. 222
The permissible stress to which a structural member can be subjected to, is known as
(A) Bearing stress
(B) Working stress
(C) Tensile stress
(D) Compressive stress
Answer: Option B
Question No. 223
Tacking rivets in tension members, are provided at a pitch in line not exceeding
(A) 25 cm
(B) 50 cm
(C) 75 cm
(D) 100 cm
Answer: Option D
Question No. 224
In case of timber structures, the form factor for solid circular cross-section is taken as
(A) 1.18
(B) 1.414
(C) 1.67
(D) 1.81
Answer: Option A
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 225
The distance between the outer faces of flanges of a plate girder, is known as
(A) Overall depth
(B) Clear depth
(C) Effective depth
(D) None of these
Answer: Option A
Question No. 226
When the depth of a plate girder is at least times the depth of vertical leg
of the flange angles, the girder is known as deep plate girder, if is
(A) 2
(B) 4
(C) 6
(D) 8
Answer: Option D
Question No. 227
Which of the following conditions is to be satisfied both in elastic and plastic analysis?
(A) Equilibrium condition
(B) Yield condition
(C) Plastic moment condition
(D) Mechanism condition
Answer: Option A
Question No. 228
If the pitch is 6 cm and rivet value is 4 tonnes, the number of rivets required for a
riveted connection carrying an eccentric load of 15 tonnes at a distance of 30 cm
from the centre line, is
(A) 6
(B) 8
(C) 10
(D) 15
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 229
In a grillage footing, the maximum shear force occurs at the
(A) Edge of grillage beam
(B) Centre of base plate
(C) Centre of grillage beam
(D) Centre of base plate
Answer: Option B
Question No. 230
The difference between gross diameter and nominal diameter for the rivets up to 25
mm diameter is
(A) 1.0 mm
(B) 1.5 mm
(C) 2.0 mm
(D) 2.5 mm
Answer: Option B
Question No. 231
Pick up the correct statement from the following:
(A) Vertical stiffeners may be placed in pairs one on each side of the web
(B) Single vertical stiffeners may be placed alternately on opposite sides of the web
(C) Horizontal stiffeners may be placed alternately on opposite sides of the web
(D) All the above
Answer: Option D
Question No. 232
The greatest permissible clear dimension of the web of thickness t in the panel of
a plate girder, is restricted to
(A) 180 t
(B) 220 t
(C) 230 t
(D) 270 t
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 233
The maximum slenderness ratio of a compression member carrying both dead
and superimposed load is
(A) 180
(B) 200
(C) 250
(D) 350
Answer: Option A
Question No. 234
Pick up the incorrect statement from the following:
(A) The nominal diameter of a rivet is its diameter before driving
(B) The gross diameter of a rivet is the diameter of rivet hole
(C) The gross area of a rivet is the cross-sectional area of the rivet hole
(D) The diameter of a rivet hole is equal to the nominal diameter of the rivet plus 1.5 mm
Answer: Option D
Question No. 235
Effective length of a column effectively held in position at both ends and
restrained in direction at one end, is
(A) L
(B) 0.67 L
(C) 0.85 L
(D) 1.5 L
Answer: Option C
Question No. 236
As per IS : 800, for compression flange, the outstand of flange plates should not exceed
(A) 12 t
(B) 16 t
(C) 20 t
(D) 25 t
t
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 237
If the unsupported length of a stanchion is 4 metres and least radius of gyration of
its cross-section is 5, the slenderness ratio of the stanchion, is
(A) 60
(B) 70
(C) 80
(D) 100
Answer: Option C
Question No. 238
For a cantilever beam of length continuous at the support and unrestrained
against torsion at the support and free at the end, the effective length is equal to
(A) l = L
(B) l = 2L
(C) l = 0.5L
(D) l = 3L Answer:
Option D
Question No. 239
Hudson's formula gives the dead weight of a truss bridge as a function of
(A) Bottom chord area
(B) Top chord area
(C) Effective span of bridge
(D) Heaviest axle load of engine
Answer: Option A
Question No. 240
Pick up the correct statement from the following:
(A) When the gauge distance is larger than the pitch, the failure of the section may occur in a
zig-zag line
(B) When the gauge distance is smaller than the pitch, the failure of the section may occur in a
straight right angle section through the centre of rivet holes
(C) When the gauge distance and pitch are both equal, the failure to the section becomes more
likely as the diameter of the holes increases
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 241
The deflection of beams may be decreased by
(A) Increasing the depth of beam
(B) Increasing the span
(C) Decreasing the depth of beam
(D) Increasing the width of beam
Answer: Option A
Question No. 242
The moment-curvature relation at a plastic hinge is
(A) Linear
(B) Parabolic
(C) Constant moment for all curvatures
(D) Constant curvature for all moments
Answer: Option C
Question No. 243
If the depth of the section of an upper column is smaller than the lower column
(A) Filler plates are provided with column splice
(B) Bearing plates are provided with column splice
(C) Filler plates and bearing plates are provided with column splice
(D) None of these
Answer: Option D
Question No. 244
If the thickness of plate to be connected by a rivet is 16 mm, then suitable size
of rivet as per Unwin's formula will be
(A) 16 mm
(B) 20 mm
(C) 24 mm
(D) 27 mm
Answer: Option C
Question No. 245
A major beam in a building structure, is known as
(A) A girder
(B) A floor beam
(C) A main beam
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 246
Angle of inclination of the lacing bar with the longitudinal axis of the column
should preferably be between
(A) 10° to 30°
(B) 30° to 40°
(C) 40° to 70°
(D) 90°
Answer: Option C
Question No. 247
In case of cantilever fillers, the ratio of the span L to depth d, should not exceed
(A) 4
(B) 8
(C) 12
(D) 16
Answer: Option C
Question No. 248
The internal pressure coefficient on walls for buildings with large permeability is taken as
(A) ± 0.2
(B) ±0.5
(C) ± 0.7
(D) 0
Answer: Option C
Question No. 249
The gross diameter of a rivet is the diameter of
(A) Cold rivet before driving
(B) Rivet after driving
(C) Rivet hole
(D) None of these
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 250
The centrifugal force due to curvature of track is assumed to act on the bridge at a height of
(A) 1.23 m above the rail level
(B) 1.50 m above the rail level
(C) 1.83 m above the rail level
(D) 2.13 m above the rail level
Answer: Option C
Question No. 251
The tensile strength of mild steel for bolts and nuts should not be less than
(A) 32 kg/mm2
(B) 36 kg/mm2
(C) 40 kg/mm2
(D) 44 kg/mm2
Answer: Option D
Question No. 252
Efficiency of a riveted joint, having the minimum pitch as per IS : 800, is
(A) 40 %
(B) 50 %
(C) 60 %
(D) 70 % Answer:
Option C
Question No. 253
In double lacing, the thickness t of flat lacing is
(A) t < 1/40 th length between inner end rivets
(B) t < 1/50 th length between inner end rivets
(C) t < 1/60 th length between inner end rivets
(D) t < 1/70 th length between inner end rivets
Answer: Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 254
According to IS Specifications, the effective length of a column effectively held in
position at both ends and restrained in direction at one end is taken as
(A) 0.67 L
(B) 0.8 L
(C) L
(D) 1.5 L
Answer: Option B
Question No. 255
If M is the moment due to a couple in a bearing plate whose width is b and
allowable bending stress is P, the thickness (t) of the bending plate of the
column splice, is
(A) t b × p)/6M]
(B) t M/(b × p)]
(C) t = 6M/bp
(D) t M/(b × p)
Answer: Option B
Question No. 256
The web crippling due to excessive bearing stress can be avoided by
(A) Increasing the web thickness
(B) Providing suitable stiffeners
(C) Increasing the length of the bearing plates
(D) None of the above
Answer: Option C
Question No. 257
Allowable working stress corresponding to the slenderness ratio of double angles
placed back to back and connected to one side of a gusset plate, is reduced to
(A) 50 %
(B) 60 %
(C) 70 %
(D) 80 %
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 258
The number of seismic zones in which the country has been divided is
(A) 3
(B) 5
(C) 6
(D) 7
Answer: Option B
Question No. 259
The critical stress on a column for elastic buckling given by Euler's formula, is
(A) fc = ²E/(I/r)²
(B) fc = (I/r)²/
(C) fc = (I/r)/
(D) fc = ²E/(I/r)
Answer: Option A
Question No.
260 Load factor
is
(A) Always equal to factor of safety
(B) Always less than factor of safety
(C) Always greater than factor of safety
(D) Sometimes greater than factor of safety
Answer: Option C
Question No. 261
When a tension member is made of four angles with a plate as a web, the
allowance for holes is made as
(A) Two holes for each angle and one hole for the web
(B) One hole for each angle and one hole for the web
(C) One hole for each angle and two holes for the web
(D) Two holes for each angle and two holes for the web
Answer: Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 262
The effective length of a battened column is increased by
(A) 5 %
(B) 10 %
(C) 15 %
(D) 20 % Answer:
Option B
Question No. 263
To keep the intensity of bearing pressure between the column base and concrete
compressive and to vary from zero to 2P/BL, the ratio of the moment M to the axial
load P should be
(A) L/2
(B) L/3
(C) L/4
(D) L/6
Answer: Option D
Question No. 264
Minimum pitch provided in riveted steel tanks is
(A) 1.5 d
(B) 2.0 d
(C) 2.5 d
(D) 3.0 d
Where d is diameter of rivets
Answer: Option D
Question No. 265
The spans are considered approximately equal if the longest span does not
exceed the shortest span by more than
(A) 5 %
(B) 10 %
(C) 15 %
(D) 20 % Answer:
Option C
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 266
The mechanism method and the statical method give
(A) Lower and upper bounds respectively on the strength of structure
(B) Upper and lower bounds respectively on the strength of structure
(C) Lower bound on the strength of structure
(D) Upper bound on the strength of structure
Answer: Option B
Question No. 267
When two plates are placed end to end and are joined by two cover plates, the joint is known as
(A) Lap joint
(B) Butt joint
(C) Chain riveted lap joint
(D) Double cover butt joint
Answer: Option D
Question No. 268
For a standard 45° fillet, the ratio of size of fillet to throat thickness is
(A) 1 : 1
(B)
(C)
(D) 2 : 1
Answer: Option C
Question No. 269
The strength of a riveted lap joint is equal to its
(A) Shearing strength
(B) Bearing strength
(C) Tearing strength
(D) Least of (a), (b) and (c)
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 270
The maximum spacing of vertical stiffeners is
(A) 1.33 d
(B) 1.25 d
(C) 1.5 d
(D) 1.75 d
Where d is the distance between flange angles
Answer: Option C
Question No. 271
Number of rivets required in a joint, is
(A) Load/Shear strength of a rivet
(B) Load/Bearing strength of a rivet
(C) Load/Tearing strength of a rivet
(D) Load/Rivet value
Answer: Option D
Question No. 272
If the loaded length of span in meters of a railway steel bridge carrying a single
track is 6 m, then impact factor is taken as
(A) 0
(B) 0.5
(C) Between 0.5 and 1.0
(D) 1.0
Answer: Option C
Question No. 273
A riveted joint many experience
(A) Tearing failure of plates
(B) Splitting failure of plates at the edges
(C) Bearing failure of rivets
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 274
Diameter of a bolt hole is usually taken as
(A) Gross diameter of bolt
(B) Nominal diameter + 1.5 mm
(C) Nominal diameter + 2.0 mm
(D) Nominal diameter of bolt
Answer: Option B
Question No. 275
The effective length of a double angle strut with angles placed back to back and
connected to both the sides of a gusset plate, by not less than two rivets, is
(A) 0.5 L
(B) 0.67 L
(C) 0.85 L
(D) 2 L
Answer: Option C
Question No. 276
The range of economical spacing of trusses varies from
(A) L/3 to L/5
(B) L/4 to 2L/5
(C) L/3 to L/2
(D) 2L/5 to 3L/5, where L is span
Answer: Option A
Question No. 277
Effective sectional area of a compression member is:
(A) Gross sectional area - area of rivet hole
(B) Gross sectional area + area of rivet hole
(C) Gross sectional area × area of rivet hole
(D) Gross sectional area + area of rivet hole
Answer: Option A
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 278
The maximum slenderness ratio of a steel column, the design of which is
governed by wind or seismic forces is
(A) 150
(B) 180
(C) 250
(D) 350
Answer: Option C
Question No. 279
In plastic analysis, the shape factor for circular sections, is
(A) 1.5
(B) 1.6
(C) 1.697
(D) None of these
Answer: Option C
Question No. 280
The external wind pressure acting on a roof depends on
(A) Degree of permeability of roof
(B) Slope of roof
(C) Both (A) and (B)
(D) None of the above
Answer: Option B
Question No. 281
The failure of a web plate takes place by yielding if the ratio of the clear depth to
thickness of the web, is less than
(A) 45
(B) 55
(C) 62
(D) 82
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 282
The actual thickness of butt weld as compared to the thickness of plate is usually
(A) More
(B) Less
(C) Equal
(D) None of the above
Answer: Option A
Question No. 283
The ratio of longitudinal stress to strain within elastic limit, is known as
(A) Modulus of elasticity
(B) Shear modulus of elasticity
(C) Bulk modulus of elasticity
(D) All the above
Answer: Option A
Question No. 284
The slenderness ratio of lacing bars should not exceed
(A) 100
(B) 120
(C) 145
(D) 180
Answer: Option C
Question No. 285
In a fillet weld placed on the sides of the base, the metal experiences
(A) Shear
(B) Tension
(C) Compression
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 286
For steel members not exposed to weather, the thickness of steel should not be less than
(A) 4.5 mm
(B) 6 mm
(C) 8 mm
(D) 10 mm
Answer: Option B
Question No. 187
When a tension member consists of two channel sections, the allowance for rivet
hole is made for two holes from
(A) Each web
(B) Each flange
(C) Each web or one hole from each flange whichever is more
(D) Each web or one hole from each flange whichever is less
Answer: Option D
Question No. 288
If a pair of angles placed back to back in tension are connected by one leg of
each angle, the net effective area of the section, is
(A) a - [b/{1 + 0.35 (b/a)}]
(B) a + [b/{1 + 0.35 (b/a)}]
(C) a - [b/{1 + 0.2 (b/a)}]
(D) a + [b/{1 + 0.2 (b/a)}]
Answer: Option D
Question No. 290
A beam is defined as a structural member subjected to
(A) Axial loading
(B) Transverse loading
(C) Axial and transverse loading
(D) None of these
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 291
The allowable stress in axial tension for rolled I-sections and channels, is taken as
(A) 1420 kg/cm2
(B) 1500 kg/cm2
(C) 2125 kg/cm2
(D) 1810 kg/cm2
Answer: Option B
Question No. 292
Secant formula for direct stress in compression, is applicable only for slenderness ratio upto
(A) 120
(B) 130
(C) 140
(D) 150
Answer: Option C
Question No. 293
An axial loaded column is supported on a slab base whose projection is 8 cm. If
the intensity of pressure from concrete is 40 kg/cm2 and allowable bending stress
in slab base is 1890 kg/cm2, the thickness (t) of the slab base, is
(A) t
(B) t
(C) t = 21/64
(D) t = 64/21
Answer: Option B
Question No. 294
A compression member consisting of angle sections may be a
(A) Continuous member
(B) Discontinuous single angle strut
(C) Discontinuous double angle strut
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 295
The main advantage of a steel member, is:
(A) Its high strength
(B) Its gas and water tightness
(C) Its long service life
(D) All the above
Answer: Option D
Question No. 296
A riveted joint may experience
(A) Shear failure
(B) Shear failure of plates
(C) Bearing failure
(D) All the above
Answer: Option D
Question No. 297
IS : 800 - 1971 recommends that in a splice plate the number of rivets carrying
calculated shear stress through a packing greater than 6 mm thick, is to be
increased by 2.5% for every
(A) 1.00 mm thickness of packing
(B) 1.50 mm thickness of packing
(C) 2.0 mm thickness of packing
(D) 2.50 mm thickness of packing
Answer: Option C
Question No. 298
To the calculated area of cover plates of a built-up beam, an allowance for rivet
holes to be added, is
(A) 10 %
(B) 13 %
(C) 15 %
(D) 18 % Answer:
Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 299
If the moment of inertia of a section about its axis is and its effective sectional
area is, its radius of gyration r about the axis, is
(A) r = I/A
(B) r I/A)
(C) r = (I/A)
(D) r A/I)
Answer: Option B
Question No. 300
A structural member subjected to compressive stress in a direction parallel to its
longitudinal axis, is generally known as
(A) Column
(B) Stanchion
(C) Post
(D) All the above
Answer: Option D
Question No. 301
The equivalent axial tensile load Pe, which produces an average axial tensile
stress in the section equivalent to the combined stress due to axial tension P and
bending M, at the extreme fibre of the section, is given by (where Z is the section
modulus of the section).
(A) Pe = P + MA/Z
(B) Pe = P - MA/Z
(C) Pe = P - Z/MA
(D) Pe = P + Z/MA
Answer: Option A
Question No.
302 Live load
(A) Varies in magnitude
(B) Varies in position
(C) Is expressed as uniformly distributed load
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 303
The maximum permissible slenderness ratio of a member carrying loads resulting from wind, is
(A) 180
(B) 200
(C) 250
(D) 300
Answer: Option C
Question No. 304
The average shear stress for rolled steel beam section, is
(A) 845 kg/cm2
(B) 945 kg/cm2
(C) 1025 kg/cm2
(D) 1500 kg/cm2
Answer: Option B
Question No. 305
For a rectangular section, the ratio of the maximum and average shear stresses, is
(A) 1.5
(B) 2.0
(C) 2.5
(D) 3.5
Answer: Option A
Question No. 306
For the steel member exposed to weather and accessible for repainting, the
thickness of steel should not be less than (accepting the webs of Indian
Standard rolled steel joists and channels).
(A) 4 mm
(B) 6 mm
(C) 8 mm
(D) 10 mm
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 307
The permissible stress in bending for rolled steel I-beams and channels, is
(A) 1500 kg/cm2
(B) 1575 kg/cm2
(C) 945 kg/cm2
(D) 1650 kg/cm2
Answer: Option D
Question No. 308
The distance measured along one rivet line from the centre of a rivet to the
centre of adjoining rivet on an adjacent parallel rivet line, is called
(A) Pitch of rivet
(B) Gauge distance of rivet
(C) Staggered pitch
(D) All the above
Answer: Option C
Question No. 309
The effective length of a simply supported beam with ends restrained against
torsion, and also the ends of compression flange partially restrained against
lateral bending, is given by
(A) L = span
(B) L = 0.85 span
(C) L = 0.75 span
(D) L = 0.7 span
Answer: Option B
Question No. 310
The permissible bearing stress in steel, is
(A) 1500 kg/cm2
(B) 1890 kg/cm2
(C) 2025 kg/cm2
(D) 2340 kg/cm2
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 311
Strengths of a rivet in single shearing, in bearing and in tearing are 3425 kg, 4575
kg and 5025 kg respectively. If the load in the member is 35 tonnes, the number
of rivets required, is
(A) 10
(B) 11
(C) 12
(D) 13
Answer: Option D
Question No. 312
The bending moment for filler joists at the middle of an intermediate span, is
(A) WL²/10
(B) - WL²/10
(C) - WL²/12
(D) WL²/12
Answer: Option D
Question No. 313
A simply supported beam carrying a central load, will be safe in deflection if the
ratio of its span to depth, is
(A) < 19
(B) < 24
(C) > 19
(D) > 24
Answer: Option B
Question No. 314
When a load is transferred through one surface to another surface in contact, the
stress is known as
(A) Tensile stress
(B) Compressive stress
(C) Shearing stress
(D) None of these
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 315
If p and d are pitch and gross diameter of rivets, the efficiency ( ) of the riveted joint, is given by
(A) = p/p - d
(B) = p/p + d
(C) = p - d/p
(D) = p + d/p
Answer: Option C
Question No. 316
The slenderness ratio of a column is zero when its length
(A) Is zero
(B) Is equal to its radius of gyration
(C) Is supported on all sides throughout its length
(D) Is between the points of zero moments
Answer: Option D
Question No. 317
A 20 mm dia steel bar which is subjected to an axial tension of 2300 kg/cm2
produces a strain of
cm. If Young's modulus of steel is 2.1 × 106 kg/cm2, the bar is
(A) In the elastic range
(B) In the plastic range
(C) At yield point
(D) None of these
Answer: Option A
Question No. 318
The maximum axial load which is just sufficient to keep a column in a small
deflected shape, is called
(A) Crippling load
(B) Buckling load
(C) Critical load
(D) All the above
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 319
Spans of continuous fillers are considered approximately equal if the longest span
does not exceed the shortest span by more than
(A) 5 %
(B) 10 %
(C) 15 %
(D) 20 % Answer:
Option C
Question No. 320
The ratio of the span L of the filler joists to the depth d from the underside of the
joist to the top of the structural concrete, should not exceed
(A) 60
(B) 45
(C) 35
(D) 25
Answer: Option C
Question No. 321
With a percentage increase of carbon in steel, decreases its
(A) Strength
(B) Hardness
(C) Brittleness
(D) Ductility
Answer: Option D
Question No. 322
The allowable stress in axial tension is generally kept less if thickness of the member is more than
(A) 10 mm
(B) 12 mm
(C) 15 mm
(D) 20 mm
Answer: Option D
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 323
The maximum permissible slenderness ratio of compression member
carrying dead and superimposed load, is
(A) 180
(B) 200
(C) 250
(D) 350
Answer: Option A
Question No. 324
Tacking rivets in compression plates not exposed to the weather, have a pitch not
exceeding 300 mm or
(A) 16 times the thickness of outside plate
(B) 24 times the thickness of outside plate
(C) 32 times the thickness of outside plate
(D) 36 times the thickness of outside plate
Answer: Option C
Question No. 325
A single angle in tension is connected by one leg only. If the areas of connecting
and outstanding legs are respectively a and b, net effective area of the angle, is
(A) a - [b/{1 + 0.35 (b/a)}]
(B) a + [b/{1 + 0.35 (b/a)}]
(C) a - [b/{1 + 0.2 (b/a)}]
(D) a + [b/{1 + 0.2 (b/a)}]
Answer: Option B
Faculty of Degree Engineering - 083 Department of Civil Engineering - 06
Question No. 326
If L is the overall length of a combined footing having A as its area, d being the
distance between the centre of gravity of the base and centre of the base, the
larger width b is
(A) (A/L) + (3Ad/L²)
(B) (A/L) + (6Ad/L²)
(C) (A/L) - (6Ad/L²)
(D) (A/L) - (3Ad/L²)
Answer: Option B
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