Electric Traction Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction? Series parallel operation of motors Reduced current method Tap changing control of transformer All of the listed here Series parallel operation of motors Reduced current method Tap changing control of transformer All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For given maximum axle load tractive efforts of AC. locomotive will be Equal to that of D.C. locomotive More than that of D.C. locomotive None of the listed here Less than that of D.C. locomotive Equal to that of D.C. locomotive More than that of D.C. locomotive None of the listed here Less than that of D.C. locomotive ANSWER DOWNLOAD EXAMIANS APP
Electric Traction An ideal traction system should have All of the listed here High starting tractive effort Easy speed control Equipment capable of withstanding large temporary loads All of the listed here High starting tractive effort Easy speed control Equipment capable of withstanding large temporary loads ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The braking retardation is usually in the range 5 to 8 km phps 0.15 to 0.30 km phps 15 to 30 km phps 3 to 5 km phps 5 to 8 km phps 0.15 to 0.30 km phps 15 to 30 km phps 3 to 5 km phps ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following is an advantage of electric traction over other methods of traction? Better braking action No pollution problems All of the listed here Faster acceleration Better braking action No pollution problems All of the listed here Faster acceleration ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For 25 kV single phase system power supply frequency is 50 Hz 25 Hz 60 Hz 100 Hz 50 Hz 25 Hz 60 Hz 100 Hz ANSWER DOWNLOAD EXAMIANS APP
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