DC Motors If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens This will make armature to take heavy current, possibly burning it Nothing will happen to the motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will run at very slow speed This will make armature to take heavy current, possibly burning it Nothing will happen to the motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will run at very slow speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors For starting a dc motor a starter is required because It limits the starting current to a safe value None of the listed here It limits the speed of the motor It starts the motor It limits the starting current to a safe value None of the listed here It limits the speed of the motor It starts the motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors ______ motor has the best speed regulation. Cummulative compounded Series Differentially compounded Shunt Cummulative compounded Series Differentially compounded Shunt ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Machine shops Electric traction Air compressors Pumping sets Machine shops Electric traction Air compressors Pumping sets ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 20 to 25 percent 50 to 75 percent 2 to 3 percent 10 to 15 percent 20 to 25 percent 50 to 75 percent 2 to 3 percent 10 to 15 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven None of these Also runs as a motor comes to stop after sometime Does not run as a generator Runs as a generator None of these Also runs as a motor comes to stop after sometime Does not run as a generator Runs as a generator ANSWER DOWNLOAD EXAMIANS APP
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