Electrical Machines Dynamic braking can be used for series motors. shunt motors. compound motors. All of these series motors. shunt motors. compound motors. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In large sized DC machines the compensating windings are provided to neutralize voltage induced in coil due to fluctuation of l None of these compensate for the decrease in speed due to increase of load. reduce eddy current losses by providing local short circuits. neutralize voltage induced in coil due to fluctuation of l None of these compensate for the decrease in speed due to increase of load. reduce eddy current losses by providing local short circuits. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a standard frequency the machine operates at a particular speed known as slip speed. synchronous speed. any of the above. normal speed. slip speed. synchronous speed. any of the above. normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 12 pole triplex lap wound DC armature, each conductor can carry current of 100 A. The rated current of this armature is 1200 A. 600 A. 2400 A. 3600 A. 1200 A. 600 A. 2400 A. 3600 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.2 0.02 0.04 0.4 0.2 0.02 0.04 0.4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to None of above. The voltage across the terminals. The speed of motor. The torque required. None of above. The voltage across the terminals. The speed of motor. The torque required. ANSWER DOWNLOAD EXAMIANS APP
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