DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven Runs as a generator Does not run as a generator Also runs as a motor comes to stop after sometime None of these Runs as a generator Does not run as a generator Also runs as a motor comes to stop after sometime None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? Reluctance motor C. series motor Induction motor C. shunt motor Reluctance motor C. series motor Induction motor C. shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors A three point starter is considered suitable for All D.C. motors Shunt motors Shunt as well as compound motors Shunt, compound and series motors All D.C. motors Shunt motors Shunt as well as compound motors Shunt, compound and series motors ANSWER DOWNLOAD EXAMIANS APP
DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The motor will continue to run The motor will stop The armature may burn The motor will run noisy The motor will continue to run The motor will stop The armature may burn The motor will run noisy ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Series motor Differentially compound motor Shunt motor Cummulative compound motor Series motor Differentially compound motor Shunt motor Cummulative compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 2 to 3 percent 50 to 75 percent 10 to 15 percent 20 to 25 percent 2 to 3 percent 50 to 75 percent 10 to 15 percent 20 to 25 percent ANSWER DOWNLOAD EXAMIANS APP
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