11. 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 & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
12. For 25 kV single phase system power supply frequency is A. 60 Hz B. 50 Hz C. 25 Hz D. 16 Hz Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
13. For given maximum axle load tractive efforts of AC. locomotive will be A. Less than that of D.C. locomotive B. More than that of D.C. locomotive C. Equal to that of D.C. locomotive D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
14. The speed of a superfast train is A. 60 kmph B. 75 kmph C. 100 kmph D. More than 100 kmph Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
15. The normal value of adhesion friction is A. 0.12 B. 0.25 C. 0.40 D. 0.75 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
16. 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 & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
17. Power for lighting in passenger 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 & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
18. 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 & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
19. Vacuum is created by which of the following? A. Vacuum pump B. Ejector C. Any of the above D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
20. 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 & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
