Computer Programming MCQs

5739 MCQs  (Page 530 of 574)

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
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
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
Due to which of the following co-efficient of adhesion improves ?
A. Rust on the rails
B. Dust on the rails
C. Sand on the rails
D. All of the above
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
The speed of a superfast train is______________?
A. 60 kmph
B. 75 kmph
C. 100 kmph
D. More than 100 kmph