Practice Test: Question Set - 06
1. 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
2. Main traction systems used in India are, those using
- (A) Electric locomotives
- (B) Diesel engine locomotives
- (C) Steam engine locomotives
- (D) All of the above
3. 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
4. Which of the following braking systems on the locomotives is costly?
- (A) Regenerative braking on electric locomotives
- (B) Vacuum braking on diesel locomotives
- (C) Vacuum braking on steam locomotives
- (D) All braking systems are equally costly
5. 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
6. 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
7. In India, electrification of railway track was done for the first time in which of the following years?
- (A) 1820 - 1825
- (B) 1880 - 1885
- (C) 1925 - 1932
- (D) 1947 - 1954
8. In India diesel locomotives are manufactured at
- (A) Ajmer
- (B) Varanasi
- (C) Bangalore
- (D) Jamalpur
9. Electric locomotives in India are manufactured at
- (A) Jamalpur
- (B) Bangalore
- (C) Chittaranjan
- (D) Gorakhpur
10. The pulsating torque exerted by steam locomotives causes which of the following?
- (A) Jolting and skidding
- (B) Hammer blow
- (C) Pitching
- (D) All of the above
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