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 Series parallel operation of motors All of the listed here Reduced current method Tap changing control of transformer Series parallel operation of motors All of the listed here Reduced current method ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Series motor is not suited for traction duty due to which of the following account? Current surges after temporary switching off supply Commutating property at heavy load Self relieving property Less current drain on the heavy load torque Current surges after temporary switching off supply Commutating property at heavy load Self relieving property Less current drain on the heavy load torque ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The rate of acceleration on suburban or urban service is in the range 5 to 10 km phps 1.6 to 4.0 km phps 0.2 to 0.5 km phps 15 to 25 km phps 5 to 10 km phps 1.6 to 4.0 km phps 0.2 to 0.5 km phps 15 to 25 km phps ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Methods can bring the locomotive to dead stop. Regenerative braking Plugging braking Rheostat braking None of the listed here Regenerative braking Plugging braking Rheostat braking None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The speed of a superfast train is More than 100 kmph 100 kmph 75 kmph 60 kmph More than 100 kmph 100 kmph 75 kmph 60 kmph ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Quadrilateral speed-time curve pertains to which of the following services? Main line service Urban and suburban service Suburban service Urban service Main line service Urban and suburban service Suburban service Urban service ANSWER DOWNLOAD EXAMIANS APP
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