Electrical Machines In a synchronous motor torque or load angle δ ------------- with increase in load None of these decreases remains unaffected increases None of these decreases remains unaffected increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous generator with constant steam input supplies power to an infinite bus at a lagging power factor. If the excitation is increased power angle increase and power factor decrease both power angle and power factor decrease power angle decrease and power factor increase both power angle and power factor increase power angle increase and power factor decrease both power angle and power factor decrease power angle decrease and power factor increase both power angle and power factor increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is self starting? Single phase induction motor. Poly-phase synchronous machine. None of these. Poly-phase induction motor. Single phase induction motor. Poly-phase synchronous machine. None of these. Poly-phase induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is blowers. jaw crushers. lifts and hoists. paper mills. blowers. jaw crushers. lifts and hoists. paper mills. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines R1 is the resistance of the primary winding of the transformer. The turn ratio in terms of primary to secondary is K. Then the equivalent resistance of the primary referred to secondary is R1 /K K×R1 R1 /K² K²R1 R1 /K K×R1 R1 /K² K²R1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 41% 21% 10% 11% 41% 21% 10% 11% ANSWER DOWNLOAD EXAMIANS APP
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