Practice Test: Question Set - 07
1. For diesel locomotives the range of horsepower is
- (A) 50 to 200
- (B) 500 to 1000
- (C) 1500 to 2500
- (D) 3000 to 5000
2. 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
3. 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
4. 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
5. Which of the following state capitals (in India) is not on broad gauge track?
- (A) Lucknow
- (B) Bhopal
- (C) Jaipur
- (D) Chandigarh
6. Tractive effort is required to
- (A) Overcome the gravity component of train mass
- (B) Overcome friction, windage and curve resistance
- (C) Accelerate the train mass
- (D) Do all of the above
7. Quadrilateral speed-time curve pertains to which of the following services?
- (A) Main line service
- (B) Urban service
- (C) Suburban service
- (D) Urban and suburban service
8. 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
9. The value of coefficient of adhesion will be high when rails are
- (A) Greased
- (B) Wet
- (C) Sprayed with oil
- (D) Cleaned with sand
10. 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
11. An ideal traction system should have
- (A) Easy speed control
- (B) High starting tractive effort
- (C) Equipment capable of withstanding large temporary
loads
- (D) All of the above
12. ________ have maximum unbalanced forces
- (A) Diesel saunters
- (B) Steam locomotives
- (C) Electric locomotives
- (D) Diesel locomotives
13. _________ frequency is not common in low frequency traction system
- (A) 40 Hz
- (B) 25 Hz
- (C) 16 Hz
- (D) None of these
14. For 25 kV single phase system power supply frequency is
- (A) 60 Hz
- (B) 50 Hz
- (C) 25 Hz
- (D) 16 Hz
15. 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
Blogger Comment
Facebook Comment