DC Motors The resistance of shunt field winding as compared to series field winding is None of the listed here More Less The same None of the listed here More Less The same ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Air motor Shunt motor Battery operated motor Series motor Air motor Shunt motor Battery operated motor Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Elevators Centrifugal pumps Steel rolling mills Colliery winders Elevators Centrifugal pumps Steel rolling mills Colliery winders 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 Brake test Hopkinson's test Field test Swinburne's test Brake test Hopkinson's test Field 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 One-third Half None of the listed here Twice One-third Half None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit A resistance is connected in series with armature A high value resistor is connected across the field winding A resistance is connected parallel to the armature Armature is temporarily open circuited A resistance is connected in series with armature A high value resistor is connected across the field winding A resistance is connected parallel to the armature Armature is temporarily open circuited ANSWER DOWNLOAD EXAMIANS APP
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