Electric Traction Important MCQ PDF Part 1
1. 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 these
Answer-A
2. 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
Answer-A
Electric Traction Important MCQ PDF Part 1
3. 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-B
4. The speed of a locomotive is controlled by
(a) flywheel
(b) gear box
(c) applying brakes
(d) regulating steam flow to engine
Answer-A
5. 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 these
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Answer-E
Electric Traction Important MCQ PDF Part 1
6, in India diesel locomotives are manufactured at
(a) Ajmer
(b) Varanasi
(c) Bangalore
(d) Jamalpur
Answer-B
7. 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-C
8. _______ locomotive has the highest operational availability.
(a) Electric
(b) Diesel
(c) Steam
(d) All of these
Answer-A
9. The horsepower of steam locomotives is
(a) up to 1500
(b) 1500 to 2000
(c) 2000 to 3000
(d) 3000 to 4000
Answer-A
Electric Traction Important MCQ PDF Part 1
10. 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-A
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11. 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-B
12. In a steam locomotive electric power is provided through
(a) overhead wire
(b) battery system
(c) small turbo-generator
(d) diesel engine generator
Answer-C
13. 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 these
Answer-C
Electric Traction Important MCQ PDF Part 1
14. 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-C
15. Overload capacity of diesel engines is usually restricted to
(a) 2 percent
(b) 10 percent
(c) 20 percent
(d) 40 percent
Answer-A
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16. 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-C
17. The steam engine provided on steam locomotives is
(a) single acting condensing type
(b) single acting non-condensing type
(e) double acting condensing type
(d) double acting non-condensing type
Answer-B
18. Electric locomotives in India are manufactured at
(a) Jamalpur
(b) Bangalore
(c) Chittranjan
(d) Gorakhpur
Answer-C
Electric Traction Important MCQ PDF Part 1
19. 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-D
20. Automatic signaling 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-B
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21. 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-A
Electric Traction Important MCQ PDF Part 1
22. The speed of a superfast train is
(a) 60 kmph
(b) 75 kmph
(c) 100 kmph
(d) more than 100 kmph
Answer-D
23. 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-B
Electric Traction Important MCQ PDF Part 1
24. Which of the following state capitals is not on broad gauge track ?
(a) Lucknow
(b) Bhopal
(c) Jaipur
(d) Chandigarh
Answer-C
25. 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-A
Electric Traction Important MCQ PDF Part 1
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