Explore topic-wise MCQs in Electrical Engineering.

This section includes 170 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.

51.

________ have maximum unbalanced forces

A. Diesel saunters
B. Steam locomotives
C. Electric locomotives
D. Diesel locomotives
Answer» C. Electric locomotives
52.

The number of passenger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to

A. 5
B. 10
C. 14
D. 17
Answer» C. 14
53.

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
54.

The rate of acceleration on sub-urban or urban services is restricted by the consideration of

A. Engine power
B. Track curves
C. Passenger Discomfort
D. Track size
Answer» D. Track size
55.

_______ was the first city in India to adopt electric traction.

A. Delhi
B. Madras (Chennai)
C. Calcutta (kolkata)
D. Bombay (Mumbai)
Answer» E.
56.

Which of the following is the disadvantage of electric traction over other systems of traction?

A. Corrosion problems in the underground 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
Answer» D. Interference with communication lines
57.

Locomotives with monometer bogies have

A. Uneven distribution of tractive effect
B. Suitability for passenger as well as freight service
C. Lot of skidding
D. Low coefficient of adhesion
Answer» C. Lot of skidding
58.

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.
59.

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
60.

Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction?

A. Reduced current method
B. Tap changing control of transformer
C. Series parallel operation of motors
D. All of the above
Answer» C. Series parallel operation of motors
61.

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
62.

Locomotive having mono-motor bogies

A. Has better coefficient of adhesion
B. Are suited both for passenger as well as freight service
C. Has better riding qualities due to the reduction of lateral forces
D. Has all above qualities
Answer» E.
63.

The air resistance to the movement of the train is proportional to

A. speed
B. (speed)2
C. (speed)3
D. 1/speed
Answer» C. (speed)3
64.

Which of the following state capitals (in India) is not on broad gauge track?

A. Lucknow
B. Bhopal
C. Jaipur
D. Chandigarh
Answer» D. Chandigarh
65.

Methods can bring the locomotive to dead stop.

A. Plugging braking
B. Rheostat braking
C. Regenerative braking
D. None of the above
Answer» B. Rheostat braking
66.

Which of the following state capitals is not on broad gauge track ?

A. Lucknow
B. Bhopal
C. Jaipur
D. Chandigarh
Answer» D. Chandigarh
67.

Electric locomotives in India are manufactured at

A. Jamalpur
B. Bangalore
C. Chittaranjan
D. Gorakhpur
Answer» D. Gorakhpur
68.

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
69.

In tram ways 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
70.

The rate of acceleration on suburban or urban service is in the range%!

A. 0.2 to 0.5 km phps
B. 1.6 to 4.0 km phps
C. 5 to 10 km phps
D. 15 to 25 km phps
Answer» C. 5 to 10 km phps
71.

If the coefficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails?%!

A. 0.3
B. 0.26
C. 0.225
D. 0.16
Answer» E.
72.

Locomotives with monometer bogies have%!

A. Uneven distribution of tractive effect
B. Suitability for passenger as well as freight service
C. Lot of skidding
D. Low coefficient of adhesion
Answer» C. Lot of skidding
73.

The number of passenger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to%!

A. 5
B. 10
C. 14
D. 17
Answer» C. 14
74.

The rate of acceleration on sub-urban or urban services is restricted by the consideration of%!

A. Engine power
B. Track curves
C. Passenger Discomfort
D. Track size
Answer» D. Track size
75.

The air resistance to the movement of the train is proportional to%!

A. speed
B. (speed)
C. (speed)2
D. 1/speed
Answer» C. (speed)2
76.

Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction?%!

A. Reduced current method
B. Tap changing control of transformer
C. Series parallel operation of motors
D. All of the above
Answer» C. Series parallel operation of motors
77.

The normal value of adhesion friction is%!

A. 0.12
B. 0.25
C. 0.40
D. 0.75
Answer» C. 0.40
78.

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
79.

Energy consumption in propelling the train is required for which of the following?%!

A. Work against the resistance to motion
B. Work against gravity while moving up the gradient
C. Acceleration
D. All of the above
Answer» E.
80.

Coefficient 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
81.

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.
82.

The coasting retardation is around%!

A. 0.16 km phps
B. 1.6 km phps
C. 16 km phps
D. 40 km phps
Answer» B. 1.6 km phps
83.

The resistance encountered by a train in motion is on account of%!

A. Resistance offered by air
B. Friction at the track
C. Friction at various parts of the rolling stock
D. All of the above
Answer» E.
84.

*/*_The air resistance to the movement of the train is proportional to?

A. speed
B. (speed)
C. (speed)2
D. 1/speed
Answer» C. (speed)2
85.

*/*_The rate of acceleration on sub-urban or urban services is restricted by the consideration of?

A. Engine power
B. Track curves
C. Passenger Discomfort
D. Track size
Answer» D. Track size
86.

*/*_The number of passenger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to?

A. 5
B. 10
C. 14
D. 17
Answer» C. 14
87.

*/*_Locomotives with monometer bogies have?

A. Uneven distribution of tractive effect
B. Suitability for passenger as well as freight service
C. Lot of skidding
D. Low coefficient of adhesion
Answer» C. Lot of skidding
88.

*/*_Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction??

A. Reduced current method
B. Tap changing control of transformer
C. Series parallel operation of motors
D. All of the above
Answer» C. Series parallel operation of motors
89.

*/*_Coefficient 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
90.

*/*_Energy consumption in propelling the train is required for which of the following??

A. Work against the resistance to motion
B. Work against gravity while moving up the gradient
C. Acceleration
D. All of the above
Answer» E.
91.

*/*_The normal value of adhesion friction is?

A. 0.12
B. 0.25
C. 0.40
D. 0.75
Answer» C. 0.40
92.

*/*_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
93.

*/*_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
94.

*/*_The resistance encountered by a train in motion is on account of?

A. Resistance offered by air
B. Friction at the track
C. Friction at various parts of the rolling stock
D. All of the above
Answer» E.
95.

*/*_The coasting retardation is around?

A. 0.16 km phps
B. 1.6 km phps
C. 16 km phps
D. 40 km phps
Answer» B. 1.6 km phps
96.

*/*_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.
97.

*/*_The braking retardation is usually in the range?

A. 0.15 to 0.30 km phps
B. 0.30 to 0.6 km phps
C. 0.6 to 2.4 km phps
D. 3 to 5 km phps
Answer» E.
98.

*/*_Which of the following state capitals is not on broad gauge track ??

A. Lucknow
B. Bhopal
C. Jaipur
D. Chandigarh
Answer» D. Chandigarh
99.

*/*_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.
100.

*/*_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