Electric Traction Which of the following is the disadvantage of electric traction over other systems of traction? Short time power failure interrupts traffic for hours Interference with communication lines High capital outlay in fixed installations beside route limitation Corrosion problems in the underground pipe work Short time power failure interrupts traffic for hours Interference with communication lines High capital outlay in fixed installations beside route limitation Corrosion problems in the underground pipe work ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Automatic signaling is used for which of the following trains? Mail and express trains Suburban and Urban electric trains Superfast trains All trains Mail and express trains Suburban and Urban electric trains Superfast trains All trains ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For 25 kV single phase system power supply frequency is 100 Hz 50 Hz 25 Hz 60 Hz 100 Hz 50 Hz 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Coefficient of adhesion reduces due to the presence of which of the following? Sand on rails Both Dew on rails and Oil on the rails Dew on rails Oil on the rails Sand on rails Both Dew on rails and Oil on the rails Dew on rails Oil on the rails ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Series motor is not suited for traction duty due to which of the following account? Commutating property at heavy load Less current drain on the heavy load torque Current surges after temporary switching off supply Self relieving property Commutating property at heavy load Less current drain on the heavy load torque Current surges after temporary switching off supply Self relieving property ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following braking systems is used on steam locomotives? Vacuum system Hydraulic system None of the listed here Pneumatic system Vacuum system Hydraulic system None of the listed here Pneumatic system ANSWER DOWNLOAD EXAMIANS APP
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