Electric Traction The voltage used for suburban trains in D.C. system is usually 12 V 24 V 220 V 600 to 750 V 12 V 24 V 220 V 600 to 750 V ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The normal value of adhesion friction is 0.25 0.50 0.30 0.35 0.25 0.50 0.30 0.35 ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The friction at the track is proportional to None of the listed here 1/speed Speed 1/(speed)² None of the listed here 1/speed Speed 1/(speed)² ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For which of the following locomotives the maintenance requirements are the least? All of the listed here Steam locomotives Electric locomotives Diesel locomotives All of the listed here Steam locomotives Electric locomotives Diesel locomotives ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For 25 kV single phase system power supply frequency is 100 Hz 50 Hz 60 Hz 25 Hz 100 Hz 50 Hz 60 Hz 25 Hz ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction? Tap changing control of transformer All of the listed here Reduced current method Series parallel operation of motors Tap changing control of transformer All of the listed here Reduced current method Series parallel operation of motors ANSWER DOWNLOAD EXAMIANS APP
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