Electric Traction Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction? 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 Tap changing control of transformer ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The normal value of adhesion friction is 0.50 0.30 0.25 0.35 0.50 0.30 0.25 0.35 ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Speed-time curve of main line service differs from those of urban and suburban services on following account It has longer free running period It has longer coasting period All of the listed here Accelerating and braking periods are comparatively smaller It has longer free running period It has longer coasting period All of the listed here Accelerating and braking periods are comparatively smaller ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following happens in Kando system? Single phase supply is converted into three phase system Three phase A.C. is converted into D.C. Single phase A.C. is converted into D.C. None of the listed here Single phase supply is converted into three phase system Three phase A.C. is converted into D.C. Single phase A.C. is converted into D.C. None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The horsepower of steam locomotives is Up to 1500 1500 to 2000 2500 to 3000 500 to 1000 Up to 1500 1500 to 2000 2500 to 3000 500 to 1000 ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Quadrilateral speed-time curve pertains to which of the following services? Suburban service Urban service Main line service Urban and suburban service Suburban service Urban service Main line service Urban and suburban service ANSWER DOWNLOAD EXAMIANS APP
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