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
Electric locomotives in India are manufactured at______________?
(A) Jamalpur
(B) Bangalore
(C) Chittranjan
(D) Gorakhpur
Which of the following state capitals is not on broad gauge track ?
(A) Lucknow
(B) Bhopal
(C) Jaipur
(D) Chandigarh
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
The wheels of a train, engine as well as bogies, are slightly tapered to_____________?
(A) reduce friction
(B) increase friction
(C) facilitate braking
(D) facilitate in taking turns
Overload capacity of diesel engines is usually restricted to_______________?
(A) 2 percent
(B) 10 percent
(C) 20 percent
(D) 40 percent
In a steam locomotive electric power is provided through_____________?
(A) overhead wire
(B) battery system
(C) small turbo-generator
(D) diesel engine generator
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
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 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