DC Motors By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor? Stator Commutator Shaft Frame Stator Commutator Shaft Frame ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor has the poorest speed control? Shunt motor Cummulative compounded motor Differentially compounded motor Series motor Shunt motor Cummulative compounded motor Differentially compounded motor Series motor 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. Half Twice One-third None of the listed here Half Twice One-third None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In variable speed motor None of these Same commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed A stronger commutating field is needed at low speed than at high speed None of these Same commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed A stronger commutating field is needed at low speed than at high speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Field's test Swinburne's test Brake test Hopkinson's test Field's test Swinburne's test Brake test Hopkinson's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used None of these Where load is constant Where constant operating speed is needed Where load changes frequently None of these Where load is constant Where constant operating speed is needed Where load changes frequently ANSWER DOWNLOAD EXAMIANS APP
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