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
Related Mcqs:
- 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 - Which of the following braking systems is used on steam locomotives ?
A. Hydraulic system
B. Pneumatic system
C. Vacuum system
D. None of the above - Which of the following is an advantage of electric traction over other methods of traction ?
A. Faster acceleration
B. No pollution problems
C. Better braking action
D. All of the above - The braking retardation is usually in the range__________________?
A. 0.15 to 0.30 km phps
B. 0.30 to 0.6 km phps
C. 0.6 to 2.4 km phps
D. 3 to 5 km phps
E. 10 to 15 km phps - Battery operated scooter for braking uses__________________?
A. plugging
B. mechanical braking
C. regenerative braking
D. rheostatic braking - Battery operated scooter for braking uses________________?
A. plugging
B. mechanical braking
C. regenerative braking
D. rheostatic braking - The electric charge of 100 °C is 13cm apart from another charge 16.9°C electric force between them is_____________?
A. 9x107N
B. 900N
C. 9x105N
D. 9x106N - Which of the following is the disadvantage of electric traction over other systems of traction ?
A. Corrosion problems in the under-ground pipe work
B. Short time power failure interrupts traffic for hours
C. High capital outlay in fixed installations beside route limitation
D. Interference with communication lines
C. All of the above - For a particular application the type of electric-and control gear are determined by which of the following considerations ?
A. Starting torque
B. Conditions of environment
C. Limitation on starting current
D. Speed control range and its nature
E. All of the above - Which of the following uses electric energy and does not convert it into any other form ?
A. transformer
B. motor
C. D.C generator
D. A.C generator
