Electric Traction Mcqs
Q.1: _______________watt-hours per tonne km is usually the specific energy consumption for suburban services?h
A. 1520
B. 5075
C. 120150
D. 160200
Q.2: The rate of acceleration on suburban orurban service is in the range_________________?V
A. 0.2 to 0.5 km phps
B. 1.6 to 4.0 km phps
C. 5 to 10 km phps
D. 15 to 25 km phps
Q.3: Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction ?_
A. Reduced current method
B. Tap changing control of transformer#
C. Series parallel operation of motors#
D. All of the above
Q.4: The braking retardation is usually in the range__________________?B
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
Q.5: The coasting retardation is around_________________?4
A. 0.16 km phps
B. 1.6 km phps
C. 16 km phps
D. 40 km phps
Q.6: If the co-efficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails ?o
A. 0.3
B. 0.26
C. 0.225
D. 0.16
Q.7: Which of the following happens in Kando system ?0
A. Three phase is converted into
B. Single phase is converted into
C. Single phase supply is converted into three phase system8
D. None of the above
Q.8: Power for lighting in passanger coach, in a long distance electric train, is provided_________________?g
A. directly through overhead electric line'
B. through individual generator of bogie and batteries3
C. through rails
D. through locomotive
Q.9: For which of the following locomotives the maintenance requirements are the least ?S
A. Steam locomotives
B. Diesel locomotives
C. Electric locomotives
D. Equal in all of the above
Q.10: In case of a steam engine an average coal consumption per km is nearly________________?W
A. 150 to 175 kg
B. 100 to 120 kg
C. 60 to 80 kg
D. 28 to 30 kg

Related Mcqs

All Subject Mcqs