The resistance encountered by a train in motion is on account of_________________?
(A) resistance offered by air
(B) friction at the track
(C) friction at various parts of the rolling stock
(D) all of the above
Power for lighting in passanger 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
For which of the following locomotives the maintenance requirements are the least ?
(A) Steam locomotives
(B) Diesel locomotives
(C) Electric locomotives
(D) Equal in all of the above
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
Suri transmission is_________________?
(A) electrical-pneumatic
(B) mechanical-electrical
(C) hydro-mechanical
(D) hydro-pneumatic
For 25 kV single phase system power supply frequency is_______________?
(A) 60 Hz
(B) 50 Hz
(C) 25 Hz
(D) 16 Hz
Locomotives with monometer bogies have_________________?
(A) uneven distribution of tractive effect
(B) suitability for passanger as well as freight service
(C) lot of skidding
(D) low co-efficient of adhesion
________________ frequency is not common in low frequency traction system?
(A) 40 Hz
(B) 25 Hz
(C) 16 Hz
(D) non of these
Locomotive having monomotor bogies________________?
(A) has better coefficient of adhesion
(B) are suited both for passanger as well as freight service
(C) has better riding qualities due to the reduction of lateral forces
(D) has all above qualities
Specific energy consumption is affected by which of the following factors ?
(A) Retardation and acceleration values
(B) Gradient
(C) Distance between stops
(D) All of the above