DC Motors The greatest percentage of power loss in a dc motor is due to Friction loss Copper loss Windage loss Core loss Friction loss Copper loss Windage loss Core loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where load is constant None of these Where constant operating speed is needed Where load changes frequently Where load is constant None of these Where constant operating speed is needed Where load changes frequently ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thermistor Thyratron Transistor Thyristor Thermistor Thyratron Transistor Thyristor ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Dynamic braking None of these Regenerative Plugging Dynamic braking None of these Regenerative Plugging ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Swinburne's test Field test Hopkinson's test Brake test Swinburne's test Field test Hopkinson's test Brake test ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. Twice Half One-third None of the listed here Twice Half One-third None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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