Electric Traction The value of coefficient of adhesion will be high when rails are Cleaned with sand Sprayed with oil Greased Wet Cleaned with sand Sprayed with oil Greased Wet ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Automatic signalling is used for which of the following trains ? Mail and express trains Suburban and Urban electric trains All of the listed here Superfast trains Mail and express trains Suburban and Urban electric trains All of the listed here Superfast trains ANSWER DOWNLOAD EXAMIANS APP
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 High capital outlay in fixed installations beside route limitation Interference with communication lines Corrosion problems in the underground pipe work Short time power failure interrupts traffic for hours High capital outlay in fixed installations beside route limitation Interference with communication lines Corrosion problems in the underground pipe work ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Long distance railways use which of the following? 200 V D.C. 25 kV single phase A.C. 25 kV two phase A.C. 25 kV three phase A.C. 200 V D.C. 25 kV single phase A.C. 25 kV two phase A.C. 25 kV three phase A.C. ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following braking systems on the locomotives is costly? Regenerative braking on electric locomotives Vacuum braking on diesel locomotives Vacuum braking on steam locomotives All braking systems are equally costly Regenerative braking on electric locomotives Vacuum braking on diesel locomotives Vacuum braking on steam locomotives All braking systems are equally costly ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The rate of acceleration on suburban or urban service is in the range 1.6 to 4.0 km phps 5 to 10 km phps 0.2 to 0.5 km phps 15 to 25 km phps 1.6 to 4.0 km phps 5 to 10 km phps 0.2 to 0.5 km phps 15 to 25 km phps ANSWER DOWNLOAD EXAMIANS APP
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