The air resistance to the movement of the train is proportional to
A. Speed
B. (Speed)2
C. (Speed)3
D. $$\frac{1}{{{\text{Speed}}}}$$
Answer: Option B
A. Speed
B. (Speed)2
C. (Speed)3
D. $$\frac{1}{{{\text{Speed}}}}$$
Answer: Option B
In case of ___________ free running and coasting periods are generally long.
A. Mainline service
B. Urban service
C. Suburban service
D. All of the above
Electric locomotives in India are manufactured at
A. Jamalpur
B. Bangalore
C. Chittaranjan
D. Gorakhpur
Join The Discussion