Trident Exam Paper 2012

  Important instructions & Guidelines

English

Questions: 12, 1 mark for correct answer, -0.25 mark for incorrect

answer

Read the following passage and answer the 3 questions that follow: No very satisfactory account of the mechanism that caused the formation of the ocean basins has yet been given. The traditional view supposes that the upper mantle of the earth behaves as a liquid when it is subjected to small forces for long periods and that differences in temperature under oceans and continents are sufficient to produce convection in the mantle of the earth with rising convection currents under the mid-ocean ridges and sinking currents under the continents. Theoretically, this convection would carry the continental plates along as though they were on a conveyor belt and would provide the forces needed to produce the split that occurs along the ridge. This view may be correct: it has the advantage that the currents are driven by temperature differences that themselves depend on the position of the continents. Such a back-coupling, in which the position of the moving plate has an impact on the forces that move it, could produce complicated and varying motions.On the other hand, the theory is implausible because convection does not normally occur along lines, and it certainly does not occur along lines broken by frequent offsets or changes in direction, as the ridge is. Also it is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean. This plate is growing on both sides, and since there is no intermediate trench, the two ridges must be moving apart. It would be odd if the rising convection currents kept exact pace with them. An alternative theory is that the sinking part of the plate, which is denser than the hotter surrounding mantle, pulls the rest of the plate after it. Again it is difficult to see how this applies to the ridge in the South Atlantic, where neither the African nor the American plate has a sinking part.Another possibility is that the sinking plate cools the neighboring mantle and produces convection currents that move the plates. This last theory is attractive because it gives some hope of explaining the enclosed seas, such as the Sea of Japan. These seas have a typical oceanic floor, except that the floor is overlaid by several kilometers of sediment. Their floors have probably been sinking for long periods. It seems possible that a sinking current of cooled mantle material on the upper side of the plate might be the cause of such deep basins. The enclosed seas are an important feature of the earth’s surface, and seriously require explanation because, in addition to the enclosed seas that are developing at present behind island arcs, there are a number of older ones of possibly similar origin, such as the Gulf of Mexico, the Black Sea, and perhaps the North Sea.

Q 1.

According to the author which of the explanations for formation of ocean basins is NOT provided in the passage

Option

AUpper mantle of the earth behaves as a liquid when it is subjected to small

forces

BSinking part of the plate, which is denser than the hotter surrounding

mantle, pulls the rest of the plate after itC

Sinking plate cools the neighboring mantle and produces convection currents that move the plates

DJapan Sea has a typical oceanic floor, except that the floor is overlaid by

several kilometers of sediment

Q 2.

2. According to the author, which theory has been successfully able to prove the cause of ocean basin formation?I. Sinking part of the plate, which is denser than the hotter surrounding mantle, pulls the rest of the plate after it.II. Sinking plate cools the neighboring mantle and produces convection currents that move the plates Traveller’s proof

Option AOnly I

BOnly II

CBoth I & II

DNone of the above

Q 3. This passage principally extends to

Option AResolve a controversy

BSketch a theory

CReinforce certain research findings

Dtabulate various observations

Q 4. Fill up the blanks with suitable prepositions from the alternatives given:

In the long run, drinking proved fatal, both…….his reputation & health.

Option Afor

Bto

Cof

Dat

Q 5.

Fill up the blanks with suitable prepositions from the alternatives given under the sentence.

We should try to………………….. the evil practices in the society.

Option Ado with

Bdo away with

Cdo away

Dout away

Q 6. Fill up the blanks with suitable prepositions from the alternatives given:

You are not required to get up because the book is lying……hand.

Option Aat

Bin

Con

Dfor

Q 7.

In the following sentence, some part or whole sentence is underlined. Below the sentence are given four ways of phrasing the underlined part. Select the answer from among the choices which produces the most effective sentence, one that is clear and exact.

The relationship between the RJD and the congress, which had earlier formed a morcha of sort. are currently somewhat strained.

Option Aa morcha of sort, were currently somewhat strained.

Ba morcha of sort, was currently somewhat strained.

Ca morcha of sorts, is currently somewhat strained.

Da morcha of sort, is currently somewhat strained

Q 8.

Fill in the blanks with correct article or prepositions:That night, she entered the room alone ___ the door, switched __ the light and sat motionless __ the dining table ____ her head bowed.

Option Aat, on, with, for

Bthrough, on, at, with

Cfor, from, against, with

Dbefore, above, with, of

Q 9.

In the following sentence a word or phrase is underlined. For the underlined part four words/phrases are listed below the sentence. Choose the word nearest in meaning to underlined part:He displayed a distinct tendency to long-winded speeches when asked how he was.

Option Aboring

Brepetitive

Ccircumlocutory

Dhyperbolic

Q 10.

In the following sentence a word or phrase is underlined. For the underlined part four words/phrases are listed below the sentence. Choose the word nearest in meaning to underlined part:The two opposing parties have reached a stalemate.

Option Adilemma

Bdeadlock

Cexhaustion

Dsettlement

Q 11.

In the following sentence a word or phrase is underlined. For the underlined part four words/phrases are listed below the sentence. Choose the word nearest in meaning to underlined part:Incensed by his rude behavior the manager suspended the work.

Option Aenthused

Benraged

Cinflamed

Dexcited

Q 12.

In the following sentence a word or phrase is underlined. For the underlined part four words/phrases are listed below the sentence. Choose the word nearest in meaning to underlined part:The journey to Siliguri is quite tedious.

Option Adiverting

Bwearisome

Clively

Dresolute

  Analytical

Reasoning

Questions: 15, 1 mark for correct answer, -0.25 mark

for incorrect answer

Directions: In each of the 4 questions given below are given two statements followed by two conclusions numbered I and II. You have to take the two given statements to be true even if they seem to be at variance with the commonly known facts and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known fact.

Q 13. Statements: All readers are teachers.All writers are teachers.

Conclusions: I. Some teachers are writers.II. Some writers are readers.

Option Aif only conclusion I follows

Bif only conclusion II follows

Cif neither I nor II follows

Dif both I and II follow

Q 14. Statements: All dogs are rats.Some rats are lizards.

Conclusions: I. Some dogs are lizards.ll. Some lizards are dogs.

Option Aif only conclusion I follows

Bif only conclusion II follows

Cif neither I nor II follows

Dif both I and II follow

Q 15. Statements: All lawyers are cheats.Some women are lawyers.

Conclusions: I. Some women are cheats.II. All cheats are women.

Option Aif only conclusion I follows

Bif only conclusion II follows

Cif neither I nor II follows

Dif both I and II follow

Q 16. Statements: All plants are trees.No tree is green.

Conclusions: I. Some plants are green.II. Those plants which are not trees are green.

Option Aif only conclusion I follows

Bif only conclusion II follows

Cif neither I nor II follows

Dif both I and II follow

Q 17.

In a certain code DIRECTOR is coded as ROTCERID. In that code language SOLUTION will be coded as:

Option ANOTIULOS

BNOITULOS

CNIOTULOS

DNOITUOLS

Q 18.

A and B are children of D. Who is the father of A? To answer this question which of the statements (1) and (2) is necessary?C is the brother of A and the son of E.F is the mother B.

Option AOnly (1)

BOnly (2)

CEither (1) or (2)

D(1) and (2) both

Q 19. Find the next term in the series:1331,11,1728,12,2197,13,2744,______

Option A45

B35

C25

D14

Q 20.If DOCTOR is coded as ROTDOC, which of the following is the code for NURSED?

Option ADESNUR

BSEDRUN

CSEDNUR

DDERSUN

Q 21. Complete the following Number series.8 ,27,125,343,____

Option A729

B1000

C1331

D512

Q 22.

In a code language ‘79N4U94E’ is coded as ‘E49U4N97’ then in that code language ‘1I4R9TION’will be coded as:

Option ANOIT9R4I1

BNOI9TR4I1

CNITO9R4I1

DNO9ITRS4I1

Directions: Study the following information and answer the 5 questions given below it:

Eight friends, A to H, are students of three colleges – Loyola, Xaviers and Christ – with two to three in each college. They are majoring in three subjects – Mathematics, Physics and Chemistry. Not more than three of them specialize in any subject. There are only two students in Xaviers. G studies Physics in Xaviers with only E, who studies Mathematics. A and H do not study in Christ, and study the same discipline but not Physics. C studies Mathematics in Christ with F who studies Physics. D studies Mathematics and does not study in the same college where C studies. B does not study Chemistry.

Q 23. Which of the following combinations of College-Student-Subject is correct?

Option AChrist-C-Chemistry

BLoyola-H-Physics

CXaviers-G-Chemistry

DXaviers-G-Physics

Q 24. In which college(s) do two students study Physics?

Option AOnly Loyola

BOnly Xaviers

COnly Christ

DNone of these

Q 25. What is B’s specialization?

Option APhysics

BMathematics

CPhysics or Mathematics

DData inadequate

Q 26. In which college does at least one student study Mathematics?

Option AOnly Loyola

BOnly Xaviers

COnly Christ

DAll three

Q 27. In which college does D study?

Option ALoyola

BXaviers

CLoyola or Xaviers

DData inadequate

  Numerical

Reasoning

Questions: 15, 1 mark for correct answer, -0.25 mark

for incorrect answer

Q 28.

If 12 bulls can eat 5 kg of husk in 15 days, how long will it take 96 goats to eat 4 kgs assuming a bull can consume 4 times as much as a goat:

Option A20 days

B40 days

C60 days

D80 days

Q 29.

Kalyan has the ability to complete a work in 4 days. Amit takes double the time taken by Kalyan , Firoz takes double that of Amit,and Nizam takes double that of Firoz to complete the same task. They are paired in group of two each. One pair takes two-thirds the time needed by the second pair to complete the work. Which is the first pair?

Option AKalyan and Amit

BKalyan and Firoz

CKalyan and Nizam

DAmit and Firoz

Q 30.

2 whole number x and y are such that the sum of 5% of x and 4% of y is 2/3 rd of the sum of 6% of x and 8% of y. calculating the ratio of x: y, we get:

Option A1:2

B2:3

C3:4

D4:3

Q 31.

At a cd rental shop data was collected on the number of cd’s rented on each of ten consecutive Sundays: 40, 58, 30, 90, 48, 50, 41, 39, 40, 56.

Calculate the sample mean (or the value closest to it).

Option A44

B49

C46

D48

Q 32.

Shyam tries a particular combination to open a number lock which contains 5 rings , each ring containing 10 distinct numbers. Find the probability that the lock is not opened?

Option A1 - (1/5¹°)

B1 - (1/105)

C1 - (1/¹°P5)

D1 - (1/¹°C5)

Q 33.

Assuming license plates are randomly distributed and that they consist of 3 letters followed by 3 digits (ex. UPW 181), what is the probability that SAM OTE will get a plate with either his first or last name on it?

Option A2/8789

B3/8899

C6/2325

DNone of the above

Q 34.

Suganya goes to visit the house of some friends whom she has not seen in many years.She knows that besides the two married adults in the household, there are 2 children of different ages. But she does not know their genders. When she knocks on the door of the house, a boy answers. What is the probability that the other child is a boy?

Option A1/2

B1/3

C1/4

D1/5

Q 35.

Suppose that you have Rs. 10 and that you play a betting game to win an additional Rs. 10.00.

Following are the rules:

1) You bet your entire fortune of Rs. 10.00 on one spin of the wheel2) The wheel has totally 18 holes, out of total 40 slots.3) If the ball lands in any one of the holes, then you win additional Rs. 10

As per the above rules, what is the chance of you earning a profit of Rs. 20?

Option A0.45

B0.9

C0.2025

D0.1

Q 36.

Assume that a pathway is being created through two circular figures represented by the equations below :(x+2) 2 + (y-6) 2 = 16(x+2) 2 + (y-6) 2 = 81What is the area of the pathway, in sq units, thus created?

Option A20 pi

B65 pi

C30 pi

D40 pi

Q 37.What is the area bounded by the following curves Y+2x <5, y-5x <-5 and y>0

Option A23/28

B45/28

C32/65

D37/45

Q 38.

A book has 317 pages. If each page has the number written on it, what percentage of all the numerals used are “3”?

Option A0.09

B0.095

C0.1

D0.105

Answer the questions based on the below table:

Q 39. Approximately what percentage of people sampled are unemployed?

Option A0.04

B0.05

C0.06

D0.07

Q 40. What is the ratio of males to females employed in Business services ?

Option A5:3

B2:1

C3:2

D5:4

Q 41. Males employed are highest in the following sector?

Option AVoluntary Work

BIT

CEngineering

DLegal Services

Q 42. Females employed are least in the following sector?

Option ALegal Services

BHealth Care

CBusiness Services

DSelf Employed

  Mathematical

Modelling

Questions: 3, 1 mark for correct answer, -0.25 mark

for incorrect answer

Q 43.

Suppose that a national government takes census of population every quarter in a year. The population of the country at the start of 2005 (P2005) is 100 million. The per capita growth rate of population (gr) of 0.01 per year and per capita death rate (dr) is 0.007 per year. What would be the population of the country at the start of 2006?

Option A101 million

B100.75 million

C100.3 million

D105 million

Q 44.

See the figure and answer the given question:

The earth has a circumference at the equator of about 25,000 miles. (For purposes of this problem, let’s assume a perfect sphere with a circumference of exactly 25,000 miles.) Imagine a wire laid around the earth at the equator. By how much would this wire have to be lengthened so that it could be lifted to a height of 6 ft over the entire equator? (Note: 1 mile = 5280 ft.)

Option A10 ft.

B32 ft.

C33ft.

DNone of the above

Q 45.

A government decides to adopt the exponential method for taking census. Given that P0 is the initial population, r is the average yearly growth rate, and ‘n’ is the time in years, choose from the list below, the correct model qualifying the exponential method?1) P0 *exp r*n

2) P0*exp r * n3) P0*exp n * r

Option A1 & 2

B1

C2 & 3

D3

Mechanical

Questions: 45, 1 mark for correct answer, -0.25 mark for

incorrect answer

Q 46.

In a four bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of follower, determine the theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

Option A45 mm

B90 mm

C95 mm

DSlightly less than 95 mm

Q 47.Vaporisation curve on p-t diagram for all substances possesses the following slope

Option AZero

BInfinity

CPositive

DVariable

Q 48.

The specific heats at constant volume and constant pressure for air are 711 J/KgoK and 1000 J/Kg0K respectively. The gas constant for air is

Option A1711 J/KgoK

B289 J/KgoK

C289 / 427 J/KgoK

DData is incomplete

Q 49.

A closed gaseous system undergoes a reversible process during which 200 kcal are rejected, the volume changing from 4 cubic meter to 2 cubic meter and the pressure remaining constant at 4.2 kg per cubic cm. The change in the internal energy will be

Option A+ 10 Kcal

B– 10 Kcal

C0

D+ 5 Kcal

Q 50. Flameless combustion means

Option AInert gas combustion

BCombustion in vaccum

CCatalytic combustion

DDoes not exist

Q 51.

The maximum displacement amplitude for an instrument having neutral frequency of 20 rad/sec and withstand capability of 4m per second square can be

Option A0.001 m

B0.01 m

C0.1 m

D0.5 m

Q 52.

In a rotary engine the angular velocity of the cylinder centre line is 25 rad/sec and the relative velocity of a point on the cylinder centre line wrt to the cylinder is 10 m /sec. Corioli’s acceleration will be

Option A250 m per second square

B100 m per second square

C500 m per second square

D1000 m per second square

Q 53. The usefulness of critical damping is that it

Option AProvides basis of determining critical damping

BPredicts nature of vibration

CProvides a measure of the relative amount of damping in a system

DEnables measurement of damping

Q 54.

A flywheel weighs 981/ Kg and has a radius of gyration of 100 cm. It is given a spin of 100 r.p.m about its horizontal axis. The whole assembly is rotating about a vertical axis at 6 rad / sec. The gyroscopic couple experienced will be

Option A20 Kg m

B20 , 000 kg m

C1962 kg m

D19620 kg m

Q 55.

A gear having 100 teeth is fixed and another gear having 25 teeth revolves around it, the centre lines of both gears being joined by an arm. How many revolutions will

be made by gear of 25 teeth for one revolution of arm

Option A3

B8

C18

D5

Q 56.

The tool of an NC machine has to move along a circular arc from (5,5) to (10,10) while performing an operation. The centre of the arc is at (10,5). Which one of the following NC tool path commands performs the above mentioned operation?

Option AN010 G02 X10 Y10 X5 Y5 R5

BN010 G03 X10 Y10 X5 Y5 R5

CN010 G01 X5 Y5 X10 Y10 R5

DN010 G02 X5 Y5 X10 Y10 R5

Q 57.

During a Morse test on a 4 cylinder engine, the following measurements of brake power were taken at constant speed.All cylinders firing 3037 kWNumber 1 cylinder not firing 2102 kWNumber 2 cylinder not firing 2102 kWNumber 3 cylinder not firing 2100 kWNumber 4 cylinder not firing 2098 kWThe mechanical efficiency of the engine is

Option A91.53%

B85.07%

C81.07%

D61.22%

Q 58.

A body having moment of inertia of 30 kg m2 is rotating at 210 RPM and meshes with another body at rest having M.I. of 40 Kg m2. The resultant speed after meshing will be

Option A90 rpm

B80 rpm

C100 rpm

D120 rpm

Q 59. In elliptical trammels

Option AThree pair turning one pair sliding

BTwo pairs turning two pair sliding

COne pair turning three pairs sliding

DAll four pairs are turning

Q 60.

Rockwell ‘C’ scale uses minor increment load of 10 Kg and the major increment load and diamond indenter respectively are

Option A100 kg and 118 degrees

B140 kg and 118 degrees

C150 kg and 120 degrees

D140 kg and 129 degrees

Q 61.

The significance of dieing down of white flame during the operation of Bessemer converter is

Option

AThe air is burning out the silicon and the manganese resulting in high

increase in temperature and scrap steel needs to be added to control temperature.

BThe silicon has burned out and carbon has started burning

CThat the converter must be tilted and air turned off , otherwise iron would

oxidiseD

Such a phenomenon does not occur

Q 62. The purpose of scrap steel in the charge for blast furnace is

Option ATo act as an aggregate of iron bearing mineral

BTo supply heat to reduce ore and melt the iron

CTo form a slag by combining with impurities

DTo control the grade of cast iron produced

Q 63. Which of the following has the maximum hardness

Option AAustentite

BPearlite

CTroostite

DMartensite

Q 64.Which of the following has the highest specific strength of all structural materials

Option AChromium alloys

BMagnetic steel alloys

CMagnesium alloys

DTitanium alloys

Q 65. Proof stress

Option

AIs the safest stress

BIs that which will cause a specified permanent deformation in a material,

usually 0.01 % or lessC

Is used in connection with materials like mild steelD

Does not exist

Q 66.

A certain high tensile strength steel has a modulus of elasticity of 2 x 106 kg per square cm and a yield point stress of 6000 kg per square cm. Find the minimum limiting value of the slenderness ratio for which euler’s equation is valid

Option A99

B80

C75

D57

Q 67.

Ten cubical blocks of size 25 cm x 25 cm x 25 cm are held together by a horizontal force of 50 kg to form a beam. What is the greatest force p that could act vertically at the mid span. Weight of bricks may be neglected.

Option A50Kg

B10Kg

C5Kg

D3.34Kg

Q 68.

A rectangular plate 8 cm long and 6 cm wide is subjected to normal forces of 600 kg at 6 cm side and 200 kg at 8 cm side. The normal and tangential components of force on the diagonal plane will be

Option A200 kg and 600 kg

B520 kg and 360 kg

C800 kg and 400 kg

DCannot be determined

Q 69.

There are two bars of equal length and equal volume and same material, one having stepped diameters and other having uniform diameter. If maximum stress produced in both bars is same then the stored energy will be

Option AMore in stepped diameter shaft

BMore in uniform diameter shaft

CEqual in both

DWould depend on other factors

Q 70. The M – and E- system in metrology are related with measurement of

Option AGears

BScrew threads

CAngularity

DSurface finish

Q 71.Diametral gauging for out of roundness measurement is not sufficient because

Option AIt can’t sense even lobed parts

BRadial changes always occur which can’t be sensed by it

CIt is difficult to find true centre

DIts reading can’t be fed to computer

Q 72. Pick up the wrong statement.

Option

AError is the disagreement between the result of measurement and actual

value.B

Random error are regularly repetitive in nature and result from improper conditions or procedures that are constant in action

CUncertainty of measurement represents the dispersion of the result of

measurement defined by the limits of the errorD

Absolute error is the algebraic difference between the result of measurement and the value of comparison

Q 73.

Which of the following is not the essential requirement for accuracy of measurement with a sine bar?

Option

AFlatness of upper surface

BExact distance between roller axes and mutual parallelism

CParallelism between top and bottom surfaces

DParallelism of rollers to upper surface and equality of axis distance as from

surface.

Q 74. Profile of a gear tooth can be checked by

Option ASine bar

BBench micrometer

COptical pyrometer

DOptical projector

Q 75.

If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P. , the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water would discharge

Option A0.75 Q

BQ/0.75

C1.5 Q

DSame quantity of liquid

Q 76.

The most economical section of a trapezoidal channel for maximum discharge is obtained when

Option

AHydraulic depth = half of depth

BHalf of top width = sloping side

CLength at perpendiculars from centre of top width to bottom and sloping

sides are equalD

All of the above

Q 77.

The total pressure on the surface of a vertical sluice gate 2m x 1 m with its top 2 m surface being 0.5 m below the water level will be

Option A500 kg

B1000Kg

C1500Kg

D2000Kg

Q 78. Which one of the following is the correct statement

OptionAHydraulic grade line should always be above the centre line of conduit

BHydraulic grade line should always be below the centre line of conduit

CHydraulic grade line should always be parallel to the centre line of conduit

DHydraulic grade line may be above or below the centre line of conduit

Q 79. A centrifugal pump has the following specifications Speed – 1000 rpmFlow – 1200 rpmHead – 20 mPower – 5 H.P.If speed is increased to 1500 rpm, new flow will be

Option A1800 rpm

B2700 rpm

C1200 rpm

D4500 rpm

Q 80.

An odd shaped body weighing 7.5 kg and occupying 0.01 cubic meter volume will be completely submerged in a fluid having specific gravity of

Option A1

B1.2

C9.8

D0.75

Q 81. PLAN is also a term synonymous with__________ in First angle projection.

Option ATop view

BFront view

CSide view

DSection view

Q 82. Object in First quadrant technically means

Option AFirst angle projection

BThird angle projection

CBoth a) and b)

DAssembly view

Q 83.

Choose the best option for the figures shown:

Option AAccording to rules Hidden lines are correctly shown in B

BAccording to rules Hidden lines are correctly shown in A.

CHidden lines are correctly shown in both the figures.

DInsufficient data

Q 84.

Choose the best option for the image given below :

Option AThis figure is correctly drawn

BThe central lines are misplaced and should have been singular

CThe dash in the middle of the horizontal line is misplaced

DNone of the above

Q 85.Which of the following is a most highly stressed component in steam turbines?

Option ACylinders

BBolts

CValves

DBlades

Q 86.

Which of the following given options is described by the diagram given below:

Option ARankine cycle with regeneration

BRankine cycle with reheat

CBoth a) and b)

DNone of the above

Q 87.

Which of the following alternatives is/ are included during MIS, which provide a variety of information products to managers?

Option APeriodic Scheduled Reports

BException Reports

CDemand Reports and Responses

DAll of the above

Q 88.

Which of the following is an example of Unstructured / Non-Programmable Decisions?

Option

ADecision where only part of the problem has a clear cut answer provided by

an accepted procedure.B

Inventory reorder formulaC

Rules for granting CreditD

None of the above

Q 89.

A disc oscillates freely at the end of a shaft, the other end of which is fixed. With increase in shaft stiffness, the natural frequency of vibration will:

Option AIncrease

BDecrease

CRemain same

DUnpredictable

Q 90.

Under service conditions involving jarring, vibration and pulsations of the working load, the bolt of choice would be

Option AShort bolt with high rigidity

BLong bolt with increased elasticity

CBolt with a dished washer

DBolt with castle nut

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