DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven Also runs as a motor comes to stop after sometime None of these Does not run as a generator Runs as a generator Also runs as a motor comes to stop after sometime None of these Does not run as a generator Runs as a generator ANSWER DOWNLOAD EXAMIANS APP
DC Motors By putting controller resistance in series with the armature of a dc motor, we can obtain speeds Below the normal speed only None of the listed here Above as well as below the normal speed Above the normal speed only Below the normal speed only None of the listed here Above as well as below the normal speed Above the normal speed only ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following application requires high starting torque? Locomotive Lathe machine Centrifugal pump Air blower Locomotive Lathe machine Centrifugal pump Air blower ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the supply voltage for a D.C. motor is increased, which of the following will decrease? All of these Full-load current Operating speed Starting torque All of these Full-load current Operating speed Starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? None of these Rheostat braking Plugging Regenerative braking None of these Rheostat braking Plugging Regenerative braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors Small dc motors up to 5 HP usually have 2 poles 8 poles 4 poles 6 poles 2 poles 8 poles 4 poles 6 poles ANSWER DOWNLOAD EXAMIANS APP
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