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Uttar Pradesh Power Corporation Limited
Subject : Junior Engineer Trainee Electrical Engineering
Q.1 1) 32 2) 24 3) 28 4) 18
Q.2 ? 1) # ' 2) ' - ' 3) 0 # ' 4) 2 '
Q.3 57 28 ', 9 : ?
1) ; 1/3 2) ; 1/5 3) ; 1/4 4) ; 1/10
Q.4 =5 ? 1) # 2) A 3) -BA 4)
Q.5 # ? 1) A 2) 3) - 4) EF
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Q.6 G 5 ' H ? 1) J 2) 3) # J 4) J
Q.7 -A K ' 1) A 2) BA 3) 4)
Q.8 L "A M" ? 1) 2) 3) 4) A
Q.9 P Q ? 1) P P 2) P ; Q 3) Q 4) 9 '
Q.10 'Q F 2 T 1) U 2) JF 3) V 4) #Q
Q.11 ' -'X ? 1) '' 2) 3) 4) =
Q.12E # -'X ?
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1) 2) 3) B 4) '
Q.13 F 1) ' 2) 3) 2 4) B
Q.14 A ' ; ? 1) 500 2) 350 3) 700 4) 100
Q.15 -'X ? 1) . . 2) 3) 4) Y
Q.16 -'X = = ; 5 ? 1) 2) - 3) 4) -
Q.17 -'X = A ? 1) Z 2) K 3) # 4)
Q.18 \KA A
1) 2)
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3) Q 4)
Q.19 JBA # ? 1) 1910 2) 1911 3) 1901 4) 1919
Q.20 P 2Y - ^ 2 ? 1) _ 2) a _ 3) _ 4) a _
Q.1 2B ;
1) 314 2) 384 3) 279 4) 324
Q.2 F -\# ( I II) J c F , J d G 'M , -\# # : ?
F: (1) c (2) c
-\#: I. c II. A c
1) '# -\# II 2) I II c 3) '# -\# I 4) I II
Q.3C, B A A D, C E, A D ?
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1) E 2) C 3) A 4) B
Q.4 A Y 4 , 3 10 5 ?
1) 8 km 2) 10.5 km 3) 12 km 4) 10 km
Q.5 P, Q, R, S, T V E c
T, V P, S T, R Q
P ?
1) Q 2) T 3) S 4) R
Q.6 1:27 A 8Q : 1) 1:6 2) 1:3 3) 2:9 4) 1:9
Q.7 5M ' 5M A -'X X f\ # ?
6 * 2 * 12 * 16 * 4
1) , x, =, + 2) x, =, +,
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3) +, =, -, 4) +, =, +,
Q.8 -'X ; ; ? 1, 3, 7, 15, ? , 63
1) 33 2) 29 3) 30 4) 31
Q.9 8 2 g J
'# ?
1) 16 2) 24 3) 8 4) 32
Q.10 2.30 ' M ? 1) 1100 2) 750 3) 950 4) 1050
Q.11 ; -'X M A ? 1) 5, 12, 13 2) 6, 8, 10 3) 7, 13, 18 4) 3, 4,
5
Q.12 # , = A = B 5A Y 5A = 57 ; h J = ' 106 h # 57 ; ?
1) 10 2) 11 3) 16
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4) 14
Q.13 -'X - iQ c?
1) 14 2) 16 3) 18 4) 12
Q.14 8 -'X ? abc, dfh, ? , ptx
1) jmp 2) ikm 3) ilo 4) imq
Q.15 5M :: 8 5 c 5M :: A A M 2B
BHFD : YSUW :: DMJG : ?
1) WQNT 2) WNTQ 3) WQSU 4) WNQT
Q.16 J 1 A 2001 2 1 A 2003 J ? 1) 2) - 3) 4) 2
Q.17 -'X 8 2 ? 1) GKOS 2) TQNK 3) LJGE 4) BDFG
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Q.18 J 2 x 3 = 49 3 x 4 = 916, 9 x 7 = ? 1) 2728 2) 8149 3) 6349
4) 4981
Q.19 -'X ; , ' ; 2 ? 5 4 6 9 7 8 4 6 9 7 5 3 6 8 5 7 9 4 2 4 8
3
1) 10 2) 12 3) 11 4) 9
Q.20 fV J c D 2A 8 ?
1) F 2) B 3) E 4) C
Q.1 -'X T k : - 1) M 2) M 3) ' 4) M'
Q.2 ' ' T - 1) 2V 2) d 3) l 4)
Q.3 J k ? 1) Q | 2) Q | 3) Q | 4) Q |
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Q.4 - T # f\ T 'M ? 1) ' 2) 7 3) \ 4) '
Q.5' ' ' -
1) : 2) ' 3) 4) 5U
Comprehension: 2V 2V -8
c ! , , A X 2V A | n -VM , - | , YY - J| 2V A 5 A 8 | - , - A 2
|
Q.6 SubQuestion No. :1 2V -
1) 2V A 2) \ 3) \ 2 4) 2
Q.7 SubQuestion No. :2 ?
1) 7 2) VA 3) - 4)
Q.8 SubQuestion No. :3 VA 2V \-
1) A 2) 3) -
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4) 2V
Q.9 '' # T - 1) ME 2) 3) 4) J
Q.10 ; J ? 1) 8 5A _ ' 2) 2 : ' 3) ^ : ' 4) '2 _ # '
Q.1 K' 2M (common base transistor configuration) - - '8X (Input
characteristic curve) ?
1) 2) 3) 4)
Q.2 p 0 - J ? 1) , 5 J 7' - (Low permeability, high hysteresis
losses) 2) 5 , 5 J 7' - (High permeability, high hysteresis losses)
3) , J 7' - (Low permeability, low hysteresis losses) 4) 5 , J 7' -
(High permeability, low hysteresis losses)
Q.3 - R1, R2 R3 c R1>R2>R3
B - (equivalent resistance) ?
1) - 2) R3.
3) R1 5
4) -
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Q.4 _2 # (diamagnetic) - # (property) ? 1) Y Y (positive
magnetism) 2) M Y (zero magnetism) 3) Y (infinite magnetism) 4) Y Y
(negative magnetism)
Q.5 With the same maximum voltage between conductors, the ratio
of volume of copper required in a 3 phase wire system and 1 phase
two wire system is
1) 5/3 2) 3/5 3) 4/3 4) 3/4
Q.6 3 4 Q 2_ 3 K# (connection) ?
1) Star Star 2) Star Delta 3) Delta - Delta 4) Delta - Star
Q.7 K# 5 8 # , - 1000 , r - ?
1) 1000 W 2) 500 W 3) 250 W 4) 750 W
Q.8 ' A Q (permanent magnet moving coil instrument) # ' Q
(moving iron instrument) 5 ?
1) Q (It is cheaper) 2) A s- (It can be used for all
frequencies) 3) J7' - A (It has no hysteresis losses) 4) # / (It
has lower torque / weight ratio)
Q.9 K' Q _ J ? ( M ' # )
1) = /1 -
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2) = / 1 - 3) = / 1+ 4) 1 - = 1 +
Q.10 K' # (transistor amplifier) 2M -# - 5 (highest input
impedance) M (minimum current gain) ?
1) = 2M (common collector configuration only) 2) Y 2M (common
emitter configuration only) 3) = 2M (both in common base and
common
collector configuration) 4) 2M (common base configuration
only)
Q.11 B M Y 7G - a - -iQ ?
1) (power factor) 2) # (torque angle) 3) p (armature current) 4)
... (back emf)
Q.12 3 Q J VL IL B , (consumed) ?
1) 3 VL IL cos
2) 3 VL IL sin
3) 3 VL IL sin
4) 3 VL IL cos
Q.13 J 5Q B u B u - ?
1) 2) 3) 4)
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Q.14 (substation) =A U (lightning arrester) ? 1) (across phases)
2) ' (across line and earth) 3) (across two lines) 4) M (across
phase and neutral)
Q.15 (domestic installation) (estimates) ?
1) (1.5 times the total connected load) 2) 2_ -# kVA (total of
the ratings of all
electrical fittings in kVA) 3) 2_ -# kW (total of the ratings of
all electrical
fittings in KW) 4) 2_ -# (average of the ratings of
electrical
fittings)
Q.16 (Lux) - ? 1) P - v (luminous flux) 2) P - w (Luminous
intensity) 3) _- (brightness) 4) A (illumination)
Q.17 HRC v - (current-time) '8X ?
1) A 2) D 3) B 4) C
Q.18 ' Q (moving iron instrument) Y L '# ?
1) Y ' (Instantaneous value) 2) (Average value) 3) # a (RMS
value) 4) ' (Peak value)
Q.19
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- J\ A -# x A ?
1) 'y (cumulatively compounded) 2) 2A 'y (differential
compounded) 3) y (series motor) 4) (shunt motor)
Q.20 Y # p - 5 2 ? 1) ; (number of poles) 2) (power factor of
the load) 3) Y # (load on the alternator) 4) Y # - (speed of the
alternator)
Q.21 Y 2M (common emitter configuration) J = 100 =50A ?
1) 0.89 2) 0.9 3) 0.88 4) 0.99
Q.22 - 8 7 ' V A ? 1) =z (sensitivity) 2) 8 (selectivity) 3)
(compactness) 4) - (speed)
Q.23 n B (H.T.) i 0 n J , - A c ?
1) , n , , 2{ (bedding, sheath, armouring, serving) 2) , n , 2{,
(armouring, sheath, serving, bedding) 3) n , 2{, , (sheath,
serving, bedding, armouring) 4) n , , , 2{ (sheath, bedding,
armouring, serving)
Q.24J\ A -Q (d.c. generator) Y M 2_ ' - V ?
1) v , ; , - 7 (flux, conductors, speed and number of parallel
paths)
2) v , - (flux, speed and type of winding)
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3) v , | ; ; (flux, number of poles and number of
conductors)
4) v , - | ; (flux, speed and number of poles only)
Q.25 5 , ' B (tariff) 5 ?
1) (Flat rate tariff) 2) 5 7 B (tariff based on maximum demand)
3) L B (Sliding scale tariff) 4) B (two part tariff)
Q.26 R, L 7 J A - F '# i = I sin wt. - F B '# ?
1) V sin (wt - pi/2) 2) V sin (wt + ) 3) V sin wt 4) V sin (wt -
)
Q.27 - (rotor input) 600 Watts 2L 4% , r - (rotor copper loss)
?
1) 12 W 2) 24 Watts 3) 15 W 4) 10 Watts
Q.28 (dynamometer type wattmeter) A ?
1) A 5 (inductive) - (The pressure coil is highly inductive and
has low resistance).
2) A 5 - M (The pressure coil has high resistance and negligible
inductance).
3) A 5 - (resistive) (The current coil has large number of turns
and is resistive).
4) A - (The current coil has low resistance and is connected in
parallel with the load).
Q.29 Y Q (connected load) 50 x 103 KW 5 20 x
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106 , -# 60 x 106 - Y M ,
Q ?
1) 53% 2) 43% 3) 83% 4) 33%
Q.30 n B i E - ? 1) 2{ (serving) 2) (armouring) 3) B i~
(vulcanized bitumen) 4) n (metal sheath)
Q.31 IE - n (High voltage line) A A J ?
1) 16 feet 2) 15 feet 3) 18 feet 4) 20 feet
Q.32 # ?
1) 90 iQ U= V (90 mechanical degree lagging) 2) 90 2_ U= = (90
electrical degree leading) 3) 90 2_ U= V (90 electrical degree
lagging) 4) 120 2_ U= = (120electrical degree leading)
Q.33 A (self inductance) 5 ? 1) ... Y M (lower emf will be
induced) 2) 2 5 2 (greater delay in establishing steady
current) 3) (weber turns will be lesser) 4) 5 v (greater flux
produced)
Q.34 3 4 Q iQ (neutral wire) 7n J (cross section) 8Q ?
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1) A (the same cross section as the outer wires) 2) A (half the
cross section as the outer wires) 3) A (twice the cross section as
the outer wires) 4) A 0.75 (0.75 times the cross section of the
line conductor)
Q.35 2'\ - (specific resistance) ? 1) - 2) - # 3) 4) -
Q.36 10V KA 7 - 2 , - RL. 5 u RL ?
1) 5 ohms 2) Zero ohms 3) 2 ohms 4) 4 ohms
Q.37 3 u 3 - (equal impedances) (star) , J M B J 7 ?
1) (line current will decrease) 2) (phase current will increase)
3) (power consumption will decrease) 4) (power consumption will
increase)
Q.38 = (time base) : (wave form) ? 1) (sinusoidal) 2) L (square)
3) (rectangular) 4) (saw tooth)
Q.392 7'Q # (Autotransformer starter) : (transformation ratio) N
, , Y M # (torque) (direct starting) ?
1) N 2) 1/N 3) 1/N2
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4) N2
Q.40 In horn gap type of lightning arrestor, the arc moves along
the horn due to 1) electromagnetic field and heat of the arc 2)
electromagnetic field and electrostatic field 3) electrostatic
field and heat of the arc 4) heat of the arc only
Q.41 y RLC J 7 (resonant circuit) ? 1) 5 J (Both draw maximum
current) 2) - M (Both offer minimum impedance) 3) (Power factor is
unity in both cases) 4) 5 (Both magnify currents)
Q.42 - 2- ? 1) -# (repulsion motor) 2) - (shaded pole motor) 3)
(capacitor motor) 4) 2J (split phase motor)
Q.43 2_ # K' ; ' ; ?
Y - A #
#
M
1) 10,5,5 2) 8,4,4 3) 2,1,1 4) 4,2,1
Q.44- 5Q - (cost per unit) (load factor) A J ?
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1) B 2) D 3) A 4) C
Q.45 .. Q (range) ' (shunts) , 25 A ?
1) 5 -, (high resistance, connected in parallel with
ammeter)
2) 5 -, y (high resistivity, connected in series with
ammeter)
3) 5 , y (high inductance, connected in series with ammeter)
4) -, (low resistivity, connected in parallel with the
ammeter)
Q.46 8 Y # (alternator) 7 (revolution) 2_ U= (electrical
degrees) J ?
1) 360 2) 1440 3) 720 4) 1080
Q.47 5 -# (maximum power output) , ' - V ?
1) - 8 - 5 (Load resistance to be greater than stand still
leakage impedance)
2) - 8 - (Load resistance to be less than stand still leakage
impedance)
3) - 8 5 -# A (There is no relation between load resistance and
leakage impedance for maximum power output delivery)
4) - 8 - (Load resistance to be equal to stand still leakage
impedance of the motor)
Q.48 J\ A (d.c. machines) 8 (efficiency) - 5 ?
1) - # - (Iron losses are equal to friction & windage
losses)
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2) - - (Variable losses are equal to constant losses) 3) - p r -
(Iron losses equal to armature copper losses) 4) iQ - 8Q r -
(Mechanical losses are equal to field copper
losses)
Q.49 3 ' # W1 W2
- (reactive power) ?
1) W1/W2
2) W1 + W2
3) 3 (W1 W2)
4) W1 W2
Q.50 # B M (normalizing) ? 1) B (make welding operation easier)
2) M 7\ (refine coarse abnormal structure) 3) (prevent cracks) 4)
-iQ (control hardness)
Q.51 - 7# B V = ?
1) 8Q Y (field excitation) 2) (load) 3) - (speed) 4) B
(voltage)
Q.52 (load) y 2 ?
1) (inductive only) 2) - (resistive and inductive) 3) -
(resistive only) 4) - 7 (resistive and capacitive)
Q.53# ?
1) kVA 2) kWH
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3) kVAR
4) kW
Q.54 B 7 (Buchholz relay) 8 ' ? 1) (transmission lines) 2) Y #
(alternators) 3) (induction motors) 4) K# (transformers)
Q.55 4 J\ A - p '8X (characteristics curve) 5Q
J c ? A F '# 1) 'y (cumulative compounded motor) 2) (shunt
motor) 3) y (series motor) 4) 2A 'y (differential compounded
motor)
Q.56 B - 7 (voltage regulator circuit) zener ' (bias) ?
1) = ' (small forward bias) 2) ' A (no bias) 3) V ' (reverse
bias) 4) 5 = ' (large forward bias)
Q.57 J\ A RL 7 (d.c. RL circuit) (time constant) 7 ? 8X
(transient current) ' ?
1) 0.63 of its initial value 2) 0.1 of its initial value 3) 0.5
of its initial value 4) 0.37 of its initial value
Q.58 ' K# (parallel operation) ' # V ?
1) - (same iron losses) 2) | (same polarity) 3) kVA -# (same kVA
rating) 4) - - (same percentage impedance)
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Q.59 A # (radial feeders) X (time graded) Q - -V M (inverse
definite minimum-time type relays) 7 - (set) - ?
1) (remains constant in all substations) 2) (can have any value)
3) (increases from power station to remote
substation) 4) (decreases from power station to
remote substation)
Q.60 A J J A , J Y A ?
1) , 2# (4 times the original force; Repulsion type) 2) , 2# (2
times the original force Repulsion type) 3) , # (4 times the
original force; Attraction type) 4) , # (2 times the original
force; Attraction type)
Q.61 - (negative temperature coefficient) Y ? 1) c (Managnim) 2)
B - (Aluminium) 3) # (Carbon) 4) (Silver)
Q.62 ' .. 3 r (volume of copper required) 2 ?
1) 31.2% 2) 50% 3) 66% 4) 68.6%
Q.63 7 (magnetic circuit) (pemeance) ? 1) v (facilitates the
flow of magnetic flux) 2) 7 -\ (increases the reluctance of the
magnetic circuit) 3) Y (increases the magneto motive force) 4) v
(resists the establishment of magnetic flux)
Q.64 Y # (alternator) p - ?
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1) s- (frequency) 2) - (rotor speed) 3) Y M B (generated
voltage) 4) '# B (terminal voltage)
Q.65 7 2n (circuit breaker) # B (arc voltage) 1) # 90 = (at 90
to arc current and is leading) 2) # 180 2A (out of phase by 180 to
arc current) 3) # (in phase with the arc current) 4) # 90 V (at 90
to arc current and is lagging)
Q.66 7 2n (circuit breaker) -# (rating) - -# ? 1) (short circuit
current) 2) B (voltage drop) 3) # (full load current) 4) (power
supplied)
Q.67 - B .. B A ? 1) - B (submerged arc welding) 2) - B
(resistance welding) 3) ... (MIG) 4) # B (Plasma arc welding)
Q.68 J 7 - R B ?
1) 1.5 ohms 2) 1 ohms 3) 2.5 ohms 4) 2 ohms
Q.69- 7 A A '# ?
1) A 2) B 3) C
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4) D
Q.70 B V c ? 1) 8Q (power factor and field current) 2) p -
(armature current and speed) 3) p (power factor and armature
current) 4) p 8Q (armature current and field current)
Q.71 - (Thevenins theorem) - - V ?
1) Q B u 5 c (Independent voltage and current sources are open
circuited).
2) Q B u 5 c (Independent voltage and current sources are short
circuited).
3) Q B 5 Q u 5 c (Independent voltage sources are short
circuited and independent current sources are open circuited) .
4) Q B u 5 u 5 c(Independent voltage sources are open circuited
and current sources short circuited).
Q.72 5 - ? 1) 8 5 (maximum demand at a particular instant) 2) A
(sum of average demands) 3) 8 V (load requirement at particular
instant) 4) J 5 (maximum demand over a given period of time)
Q.73 2 Y # 8 ' 8 ?
1) - 7 2) Y 7 3) # 8 4) 2A 8
Q.74 K# 8 Y 8 (indirectly) - ' A8 ? 1) A8 (short circuit test
only) 2) A8 (Load test only) 3) A8 (Both OC and SC tests) 4) A8
(open circuit test only)
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Q.75 2_ Y Q 5 (interconnected) c ? 1) 2V ' (ensure reliability
of supply) 2) - ' (maintain constancy of frequency) 3) B - '
(improve voltage regulation) 4) 8 ' (to increase transmission
efficiency)
Q.76 J 5Q (loop ABCD) B - A
? 1) 90-3.25(i1-i2)-4.2i1= 0
2) -90-3.25(i1-i2)-4.2i1+100 = 0
3) 90+3.25(i1+i2)-4.2i1-100 = 0
4) -90-3.25(i1-i2)+4.2i1 = 100
Q.77 J # B 1000 V , 1E - B A8 (voltage test) B J ?
1) 250 V 2) 500 V 3) 2000 V 4) 1000 V
Q.78 (resonance) - y RLC 7 - (impedance) ? 1) M (Zero) 2)
(Infinite) 3) - (Minimum) 4) 5 (Maximum)
Q.79 K# A A B V1 Y M v (phase angle) ?
1) 180 2) 90 3) 0 4) 45
Q.80 8Q ' A Y M 7 ... (induced emf) J - ?
1) v' J - (Flemings right hand rule)
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2) v' - (Flemings left hand rule) 3) - (Faradays law) 4) c -
(Lenzs law)
Q.81 _- - ' .. (a.c.bridge) ? 1) Maxwells bridge 2) Hays bridge
3) Schering bridge 4) Anderson bridge
Q.82 K# - ' A (laminated) ? 1) J 7' - (hysteresis losses) 2) \
(heating) 3) - (eddy current losses) 4) r - (copper losses)
Q.83 8Q (magnetic field strength) ? 1) (Ampere turns) 2) -
(Ampere turns per meter) 3) - # (Webers per meter2) 4) (Webers)
Q.84 5Q _2 (secondary transmission) ?
1) B 2) A 3) C 4) D
Q.85
' L1 L2 , M M (mutual inductance) M F (expression) _ J ?
1) K L1L2
2) K L1/L2
3) K L1+L2
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4) K L1-L2
Q.86 - 5 ' # (highest starting torque) ? 1) # (capacitor start
motor) 2) 2J (split phase motor) 3) -# (repulsion motor) 4) -
(shaded pole motor)
Q.87 X (Time graded) J' (non-directional) - 8 ? 1) # (parallel
feeders only) 2) # (ring feeders only) 3) # (both ring and parallel
feeders) 4) A # (radial feeders)
Q.88 P (sinusoidal wave) - F (expression) F
e = 100 Sin 157 t # a (rms value) - ?
1) 141 V , 25 Hz 2) 71.4 V , 25 Hz 3) 100 V ,50 Hz 4) 141 V , 50
Hz
Q.89 4 (induction motor) 50Hz u , L 8Q - 0.03 - ?
1) 750 rpm, 60 rpm 2) 1000 rpm, 70 rpm 3) 1500 rpm, 90 rpm 4)
1400 rpm, 80 rpm
Q.903 Y p 2 (distribution factor) - ?
1) M E ... X / 2 ... X (Arithmetic sum of emf with concentrated
winding / Arithmetic sum of emf with distributed winding)
2) 2 ... J / M E ... X (Vector sum of emf with distributed
winding / Arithmetic sum of emf with
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concentrated winding) 3) M E ... J / 2 ... J
(Vector sum of emf with concentrated winding / Vector sum of emf
with distributed winging) 4) 2 ... X / M E ...
X (Arithmetic sum of emf with distributed winding / Arithmetic
sum of emf with concentrated winding)
Q.91 - ? 1) B (Synchronous motor) 2) ' (Line reactors) 3)
(Induction motors) 4) '# (Boosters)
Q.92 5 ' # ' V ? 1) - - (Rotor resistance is less than rotor
reactance) 2) - - (Rotor resistance is equal to its reactance) 3) -
- (Rotor resistance is equal to stator resistance) 4) - - 5 (Rotor
resistance is greater than reactance)
Q.93 7'Q (auto transformer) 0.75 2 kW ? ' _2 (conductively)
?
1) 2 kW 2) 0.75 kW 3) 1.5 kW 4) 1.00 kW
Q.94 - FET ?
1) B 2) A 3) C 4) D
Q.95 _ Y # B - (voltage regulation) - - V ?
1) 8Q - 7# V (both field current and speed must
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change) 2) 8Q - 7# A (field current and speed must remain
the
same) 3) 8Q 7# (only field current should be varied) 4) - 7#
(only speed should be changed during the experiment)
Q.96 Y L 7 - 4 - 3 , 7 V (admittance) ?
1) 0.25 mhos 2) 0.3 mhos 3) 0.4 mhos 4) 0.2 mhos
Q.97 ' ? 1) Y (continuity only) 2) 2_ - Y (insulation resistance
and continuity) 3) 2_ - (insulation resistance only) 4) - '
(resistances in mega ohms only)
Q.98 3 (transmission line) r (volume of copper) -# ?
1) B - (directly proportional to voltage and inversely to power
factor)
2) B - (inversely proportional to voltage and directly to power
factor)
3) B - (inversely proportional to voltage and power factor)
4) B (directly proportional to voltage and power factor)
Q.99 P type z # # (P type extrinsic semiconductor material) ' p-
a ?
1) iQ =A a (trivalent acceptor impurity) 2) =A a (pentavalent
acceptor impurity) 3) a (pentavalent donor impurity) 4) iQ a
(trivalent donor impurity)
Q.100J\ A - - -# ?
1) v (Flux)
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2) (Load current) 3) B (Applied voltage) 4) 2 2_ (Back emf)
Q.101 Y # (alternators) # c # : X (synchronized) , B
(synchronizing power) ?
1) Y 5 (positive and very high) 2) Y (positive and low) 3) M
(zero) 4) Y 5 (negative and high)
Q.102 Y L 7 B - F '#
v = V sin t i = I sin (t - )
7 ?
1) zero 2) cos leading 3) unity 4) cos lagging
Q.103 7 -\ (Reluctance) 2_ 7 L ? 1) Y (Conductance) 2) V
(Admittance) 3) - (Impedance) 4) ... (Induced emf)
Q.104 L (slip ring induction motor) ' # (Starting torque) '
?
1) 7 - (adding resistance in rotor circuit) 2) 7 - (decreasing
resistance in rotor circuit) 3) 7 - (adding resistance to stator
circuit) 4) 7 - (decreasing resistance in stator circuit)
Q.105 # (energy meter) 600 7 - - , 20 5
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7 (revolutions) , (load) ? 1) 2.0 KW 2) 1 KW 3) 2.5 KW 4) 1.5
KW
Q.106 K# (turns ratio) 2:1 , J ' - (primary power input) 100 Hz
P kW K# -# (output) ?
1) 2 P kW, 100 Hz 2) P kW, 100 Hz 3) 2 P kW, 50 Hz 4) P/2 kW, 50
Hz
Q.107 -A c (fluorescent lamp) (choke) ? 1) (improve the power
factor) 2) 7 ' (limit the current in the circuit) 3) c B ' (limit
the voltage across the lamp) 4) K P 2' (cause the electrodes to
glow)
Q.108 2_ # # # (contingency expenses) 0 7y' # (material and
labour cost) - - c ?
1) 1% 2) 15% to 10% 3) 3% to 5% 4) 20% to 25%
Q.109 IE - # 3 4 ' ' 5 (earthed) J ?
1) Y (generating station) 2) Y , M E 2 Q (at generator,
substation and distribution
system) 3) M E (substation only) 4) iM (consumer point)
Q.110
A B '# 60V (total current) ?
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1) 2 amperes 2) 1.5 amperes 3) 0.5 amperes 4) 1 ampere
Q.111 K# (turns ratio) N ' - R ' B - _2 : referred to secondary)
?
1) R x N 2) R x N2 3) R/N 4) R/N2
Q.112 - 2_ Y ? 1) (Diesel generating station) 2) 2_ (Hydro
electric power station) 3) 2_ (Thermal power plant) 4) M (Nuclear
power plant)
Q.113 2J (split phase induction motor) # - A ?
1) - - 5 (The auxiliary winding has low resistance and high
reactance)
2) - 5 - (The main winding has high reactance and low
resistance)
3) - 5 - (The main winding has high resistance and low
reactance)
4) y (The auxiliary winding is in series with
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main winding)
Q.114 J ' - (earth resistance) 5 - J ?
1) ' K K J (replace the earth electrode with thinner
electrode)
2) -7 K y J (connect another electrode in series with earth
electrode)
3) -7 K ' K J (connect another electrode in parallel with earth
electrode)
4) ' 2 J (reduce the depth of the earth pit)
Q.115 - 5 A (level of illumination) V ? 1) ' 8 (sewing class
room) 2) _ ^ n (fine assembly work in industry) 3) 2 : (show rooms
in shopping malls) 4) Z (drawing offices)
Q.116 (magnetization curve) - 25 ?
1) Y X 8 Y 8 (Magneto motive force on X axis and Ampere turns on
Y axis)
2) X 8 v Y , 8Q Y 8 (Flux density on X axis and Field strength
on Y axis)
3) Y Y 8 X 8 (Magneto motive force on Y axis and Ampere turns on
X axis)
4) Y 8 v Y , 8Q X 8 (Flux density on Y axis and Field strength
on X axis)
Q.117 M M (mutual induction) 'a - ? 1) Y # (Alternators) 2) 7 'Q
(Auto transformers) 3) K# (Transformers) 4) B (Synchronous
motors)
Q.118- 7 X (Nonlinear) ?
1) 5 a (both homogeneity and superposition) 2) a
(superposition)
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3) # (associative) 4) 5 (homogeneity)
Q.119 -Q (generator) # 'k # ? 1) A 8 (Distance protection) 2) '
8 (Earth fault protection) 3) - 8 (Over current protection) 4) 2A 8
(Differential protection)
Q.120 A (inductance) - -# ?
1) F (diameter of the conductor) 2) - v (flux linkages per
ampere) 3) (permeability of the core) 4) u - (frequency of
supply)
1) 1 and 2 2) 2 and 3 3) 2 and 4 4) 1 and 3
Q.121 2n # #: (extinguished) 2n | Y M M - B ?
1) B (recovery voltage) 2) B (rest king voltage) 3) # B (arc
voltage) 4) M B (normal voltage)
Q.122 2 25 3 2A (opposite) , ?
1) 30 leading 2) 90 leading 3) 0 leading 4) 60 leading
Q.123 K- 7 - A ?
1) Y 5 V ' (emitter base junction is always reverse biased)
2) =A 5 = ' (collector base junction is always
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forward biased) 3) Y 5 = ' (Emitter base junction is always
forward biased) 4) Y = =A - (emitter current is equal to
collector current
minus base current)
Q.124 .. Y M J 1) 5 2L (running it high value of slip) 2) L 8Q -
J (running it in opposite direction to
rotating field) 3) M 2L (running it at a slip equal to zero) 4)
Y # (connecting it in parallel with an alternator)
Q.125 7' A (solenoid coil) (inductance) 4 'A A J A 5A to -5A
0.03 7-# , A 7 ... ?
1) 1.33 V 2) 2.33 V 3) 1.0 V 4) 2.0 V
Q.126 J 7 F ?
1) 125W 2) 150W 3) 25W 4) 50W
Q.127 4 , ' (wave wound) -Q 8Q 5 x 10-3 # 1000 rpm - , ; 1000 ,
-Q Y M 2_ ?
1) 166.6 volts 2) 178.5 volts 3) 233.2 volts 4) 83.3 volts
Q.128 Y Q (generating station) - ?
1) / 5 (connected load / maximum demand) 2) 5 / (maximum demand
/ connected load)
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3) x 22 (Load factor x diversity factor) 4) / 5 (average power /
maximum demand)
Q.129 The function of a starter in a d.c. motor is to 1) control
the speed to safe limits 2) limit the starting current to safe
value 3) prevent overheating 4) reduce sparking at terminals
Q.130 5Q 4 J\ A p # (Torque) '8X J
c ? 2A 'y ?
1) C 2) D 3) A 4) B
Q.131 i L (EHT) i B # c ? 1) 33 kV to 66 kV 2) up to 11 kV 3) 66
kV to 132 kV 4) 22 kV to 33 kV
Q.132 3 Q B 7 ? 1) B Z (increase in voltage drop) 2) r V
(increase in volume of copper required) 3) - (decrease in line
losses) 4) - (increase in line losses)
Q.133 - J\ A -Q 2 '# B ?
1) -Q (Shunt generator) 2) 'y -Q (Level compounded generator) 3)
2A 'y -Q (Differentially compounded generator) 4) y -Q (Series
generator)
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Q.134 - 7 (Drive) : , J Y 5 7# ZA ?
1) .. A (d.c. series motor) 2) .. (d.c. shunt motor) 3) L2 (slip
ring motors) 4) 2 (squirrel cage motors)
Q.135 L I J A , B Y H w 8 Q
?
1) B.I. 2) H.I.L. 3) B.I.L. 4) Zero
Q.136 FET (device) ? 1) 4 '# B -iQ (four terminal voltage
controlled device) 2) 3 '# B -iQ (three terminal voltage controlled
device) 3) 3 '# -iQ (three terminal current controlled device) 4) 2
'# -iQ (two terminal current controlled device)
Q.137 a (superposition) 7 ; - ?
1) (loops) 2) u (sources) 3) (meshes) 4) (nodes)
Q.138 ' .. Q .. Q V ?
1) 1.86 / Cos2 2) 0.62 / Cos2 3) Cos2 / 1.86 4) Cos2 / 0.62
Q.139- 25 B - 2 5 ?
1) 7 25 (direct loading)
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2) M 25 (zero power factor method) 3) # 25 (ampere turn method)
4) B - 25 (synchronous impedance method)
Q.140 K# # r - (copper losses) - 1000 500 , ( load) - ?
1) r - 500 W, - 125 W (copper losses 500 W, iron losses 125 W)
2) r - 500 W, - 250 W (copper losses 500 W, iron losses 250 W) 3) r
- 250 W, - 125 W (copper losses 250 W, iron losses 125 W) 4) r -
250 W, - 500 W (copper losses 250 W, iron losses 500 W)
Q.141 The frequency of rotor currents in a polyphase induction
motor is 1) slip x supply frequency 2) same as supply frequency 3)
supply frequency x slip2 4) supply frequency / slip
Q.142 - B - A ? 1) B - J # (In application of voltage
law, the positive direction of current must be anticlockwise
only). 2) - J\ 7 (The current law is
applicable to d.c. circuits only). 3) B - J 8# (In application
of
voltage law the positive direction of current must be clockwise
only). 4) B - J\ Y 7 (The
voltage law is applicable to both A.C. and D.C. circuits)
Q.143 - 5 - ? 1) 'y (cumulatively compounded) 2) y (series) 3)
(shunt) 4) 2A 'y (differentially compounded)
Q.144IE - K - V ?
1) 1 ' (Main switch to be installed at 1 meter height and
machine earthed at one place)
2) 1.5 ' (Main
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switch to be installed at 1.5 meter height and machine to be
earthed at one place) 3) 1.5 # M
(Height of main switch to be 1.5 meters and an earth wire to run
along the length of the conduit 4) 1 u ' (Height of main
switch 1 meter and motor earthed at the supply end)
Q.145 B # 7'Q B : - ?
1) 0.58 2) 0.73 3) 0.6 4) 0.5
Q.146 npn F| K' Y (emitter) | J ? 1) Y , =A Y (base positive
collector negative) 2) =A Y (both collector and base should be
negative) 3) =A Y (both collector and base should be positive) 4)
=A Y , Y (collector positive base negative)
Q.147 J 7 B 7 (equivalent capacitance) ?
1) 5 mF 2) 0.8 mF 3) 1 mF 4) 2 mF
Q.148 2 - -Q ' # A 25 ? 1) u B 7# (changing supply voltage) 2) 7
... (injecting emf in the rotor circuit) 3) (changing number of
stator poles) 4) u - 7# (changing supply frequency)
Q.149 - R , J - ?
1) 4R ohms 2) R/2 ohms 3) 2R ohms
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4) R ohms
Q.150 - 7 2 (pickup value) 72 ? 1) # 5 7 - (maximum
value of actuating quantity at which relay rests) 2) # 5 7 '
(maximum value of
actuating quantity at which relay operates) 3) # ... 7 - (r.m.s.
value of
actuating quantity at which relay rests) 4) # M 7 ' (minimum
value of
actuating quantity at which relay operates)
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