Explore topic-wise MCQs in Electrical Engineering Questions.

This section includes 73 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.

1.

have maximum unbalanced forces_______________?
A. Diesel shunters
B. Steam locomotives
C. Electric locomotives
D. Diesel locomotives
Answer» C. Electric locomotives
Discussion
2.

Specific energy consumption is affected by which of the following factors ?
A. Retardation and acceleration values
B. Gradient
C. Distance between stops
D. All of the above
Answer» E.
Discussion
3.

For which of the following locomotives the maintenance requirements are the least ?
A. Steam locomotives
B. Diesel locomotives
C. Electric locomotives
D. Equal in all of the above
Answer» C. Electric locomotives
Discussion
4.

Suri transmission is_________________?
A. electrical-pneumatic
B. mechanical-electrical
C. hydro-mechanical
D. hydro-pneumatic
Answer» D. hydro-pneumatic
Discussion
5.

In case of steam engines the steam pressure is_______________?
A. 1 to 4 kgf/cm2
B. 5 to 8 kgf/cm2
C. 10 to 15 kgf/cm2
D. 25 to 35 kgf/cm2
Answer» D. 25 to 35 kgf/cm2
Discussion
6.

_________ locomotive has the highest operational availability?
A. Electric
B. Diesel
C. Steam
Answer» B. Diesel
Discussion
7.

The overall efficiency of steam locomotive is around_____________?
A. 5 to 10 percent
B. 15 to 20 percent
C. 25 to 35 percent
D. 35 to 45 percent
Answer» B. 15 to 20 percent
Discussion
8.

The speed of a locomotive is controlled by_______________?
A. flywheel
B. gear box
C. applying brakes 11
D. regulating steam flow to engine
Answer» E.
Discussion
9.

Electric locomotives in India are manufactured at______________?
A. Jamalpur
B. Bangalore
C. Chittranjan
D. Gorakhpur
Answer» D. Gorakhpur
Discussion
10.

The wheels of a train, engine as well as bogies, are slightly tapered to_____________?
A. reduce friction
B. increase friction
C. facilitate braking
D. facilitate in taking turns
Answer» E.
Discussion
11.

Overload capacity of diesel engines is usually restricted to_______________?
A. 2 percent
B. 10 percent
C. 20 percent
D. 40 percent
Answer» B. 10 percent
Discussion
12.

Which of the following state capitals is not on broad gauge track ?
A. Lucknow
B. Bhopal
C. Jaipur
D. Chandigarh
Answer» D. Chandigarh
Discussion
13.

The efficiency of diesel locomotives is nearly_______________?
A. 20 to 25 percent
B. 30 to 40 percent
C. 45 to 55 percent
D. 60 to 70 percent
Answer» B. 30 to 40 percent
Discussion
14.

Which of the following drives is suitable for mines where explosive gas exists ?
A. Steam engine
B. Diesel engine
C. Battery locomotive
D. Any of the above
Answer» D. Any of the above
Discussion
15.

The horsepower of steam locomotives is______________?
A. up to 1500
B. 1500 to 2000
C. 2000 to 3000
D. 3000 to 4000
Answer» B. 1500 to 2000
Discussion
16.

The steam engine provided on steam locomotives is____________?
A. single acting condensing type
B. single acting non-condensing type
C. double acting condensing type
D. double acting non-condensing type
Answer» C. double acting condensing type
Discussion
17.

Automatic signalling is used for which of the following trains ?
A. Mail and express trains
B. Superfast trains
C. Suburban and Urban electric trains
D. All trains
Answer» C. Suburban and Urban electric trains
Discussion
18.

Which of the following is the voltage for single phase A.C. system ?
A. 22 V
B. 440 V
C. 5 kV
D. 15 kV
E. None of the above
Answer» B. 440 V
Discussion
19.

In case of locomotives the tractive power is provided by______________?
A. single cylinder double acting steam engine
B. double cylinder, single acting steam engine
C. double cylinder, double acting steam engine
D. single stage steam turbine
Answer» D. single stage steam turbine
Discussion
20.

For diesel locomotives the range of horsepower is_______________?
A. 50 to 200
B. 500 to 1000
C. 1500 to 2500
D. 3000 to 5000
Answer» D. 3000 to 5000
Discussion
21.

Main traction systems used in India are, those using______________?
A. electric locomotives
B. diesel engine locomotives
C. steam engine locomotives
D. diesel electric locomotives
E. all of the above
Answer» F.
Discussion
22.

Long distance railways use which of the following ?
A. 200 V D.C.
B. 25 kV single phase A.C.
C. 25 kV two phase A.C.
D. 25 kV three phase A.C.
Answer» C. 25 kV two phase A.C.
Discussion
23.

Which of the following is an advantage of electric traction over other methods of traction ?
A. Faster acceleration
B. No pollution problems
C. Better braking action
D. All of the above
Answer» B. No pollution problems
Discussion
24.

In a steam locomotive electric power is provided through_____________?
A. overhead wire
B. battery system
C. small turbo-generator
D. diesel engine generator
Answer» D. diesel engine generator
Discussion
25.

Speed-time curve of main line service differs from those of urban and suburban services on following account_______________?
A. it has longer free running period
B. it has longer coasting period
C. accelerating and braking periods are comparatively smaller
D. all of the above
Answer» E.
Discussion
26.

Locomotives with monometer bogies have_________________?
A. uneven distribution of tractive effect
B. suitability for passanger as well as freight service
C. lot of skidding
D. low co-efficient of adhesion
Answer» C. lot of skidding
Discussion
27.

For 25 kV single phase system power supply frequency is_______________?
A. 60 Hz
B. 50 Hz
C. 25 Hz
D. 16 Hz
Answer» C. 25 Hz
Discussion
28.

________________ frequency is not common in low frequency traction system?
A. 40 Hz
B. 25 Hz
C. 16 Hz
D. non of these
Answer» B. 25 Hz
Discussion
29.

In case of a steam engine an average coal consumption per km is nearly________________?
A. 150 to 175 kg
B. 100 to 120 kg
C. 60 to 80 kg
D. 28 to 30 kg
Answer» E.
Discussion
30.

The value of co-efficient of adhesion will be high when rails are_________________?
A. greased
B. wet
C. sprayed with oil
D. cleaned with sand
Answer» E.
Discussion
31.

Which of the following happens in Kando system ?
A. Three phase A.C. is converted into D.C.
B. Single phase A.C. is converted into D.C.
C. Single phase supply is converted into three phase system
D. None of the above
Answer» D. None of the above
Discussion
32.

Power for lighting in passanger coach, in a long distance electric train, is provided_________________?
A. directly through overhead electric line
B. through individual generator of bogie and batteries
C. through rails
D. through locomotive
Answer» C. through rails
Discussion
33.

In main line service as compared to urban and suburban service______________?
A. distance between the stops is more
B. maximum speed reached is high
C. acceleration and retardation rates are low
D. all of the above
Answer» E.
Discussion
34.

For three-phase induction motors which of the following is the least efficient method of speed control ?
A. Cascade control
B. Pole changing
C. Rheostat control
D. Combination of cascade and pole changing
Answer» D. Combination of cascade and pole changing
Discussion
35.

Specific energy consumption becomes________________?
A. more on steeper gradient
B. more with high train resistance
C. less if distance between stops is more
D. all of the above
Answer» E.
Discussion
36.

_______________method can bring the locomotive to dead stop?
A. Plugging braking
B. Rheostatic braking
C. Regenerative braking
D. None of the above
Answer» B. Rheostatic braking
Discussion
37.

The voltage used for suburban trains in D.C. system is usually_______________?
A. 12 V
B. 24 V
C. 220 V
D. 600 to 750 V
Answer» E.
Discussion
38.

The specific energy consumption of a train depends on which of the following ?
A. Acceleration and retardation
B. Gradient
C. Distance covered
D. All of the above
Answer» E.
Discussion
39.

Vacuum is created by which of the following ?
A. Vacuum pump
B. Ejector
C. Any of the above
D. None of the above
Answer» D. None of the above
Discussion
40.

The air resistance to the movement of the train is proportional to_____________?
A. speed
B. (speed)
C. (speed).
D. 1/speed
Answer» C. (speed).
Discussion
41.

Battery operated trucks are used in________________?
A. steel mills
B. power stations
C. narrow gauge traction
D. factories for material transportation
Answer» E.
Discussion
42.

Which of the following is the advantage of electric braking ?
A. It avoids wear of track
B. Motor continues to remain loaded during braking
C. It is instantaneous
D. More heat is generated during braking
Answer» B. Motor continues to remain loaded during braking
Discussion
43.

The normal value of adhesion friction is______________?
A. 0.12
B. 0.25
C. 0.40
D. 0.75
Answer» C. 0.40
Discussion
44.

The friction at the track is proportional to________________?
A. 1/speed
B. l/(speed)2
C. speed
D. none of the above
Answer» D. none of the above
Discussion
45.

The rate of acceleration on suburban orurban services is restricted by the consideration of______________?
A. Engine power
B. Track curves
C. Passenger Discomfort
D. Track size
Answer» D. Track size
Discussion
46.

Which of the following braking systems is used on steam locomotives ?
A. Hydraulic system
B. Pneumatic system
C. Vacuum system
D. None of the above
Answer» D. None of the above
Discussion
47.

Co-efficient of adhesion is________________-?
A. high in case of D.C. traction than in the case of AC. traction
B. low in case of D.C. traction than in the case of AC. traction
C. equal in both AC. and D.C. traction
D. any of the above
Answer» C. equal in both AC. and D.C. traction
Discussion
48.

Quadrilateral speed-time curve pertains to which of the following services ?
A. Main line service
B. Urban service
C. Sub-urban service
D. Urban and sub-urban service
Answer» E.
Discussion
49.

Which of the following is the disadvantage of electric traction over other systems of traction ?
A. Corrosion problems in the under-ground pipe work
B. Short time power failure interrupts traffic for hours
C. High capital outlay in fixed installations beside route limitation
D. Interference with communication lines
E. All of the above
Answer» D. Interference with communication lines
Discussion
50.

In tramways which of the following motors is used ?
A. D.C. shunt motor
B. D.C. series motor
C. A.C. three phase motor
D. AC. single phase capacitor start motor
Answer» C. A.C. three phase motor
Discussion