Electrical Machines A smaller air gap in a induction motor helps to reduce the chance of cogging. reduce the chance of crawling. reduce the magnetizing current. increase the starting torque. reduce the chance of cogging. reduce the chance of crawling. reduce the magnetizing current. increase the starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is expensive for same Kw output rates? Synchronous motor. AC single phase motor. Induction motor. DC Shunt Motor Synchronous motor. AC single phase motor. Induction motor. DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field system has to be provided on stator unlike synchronous machines Where in it could be on any member, because it reduces field structure iron losses commutator action is not possible otherwise dc machines are comparatively low rating machines. it gives more uniform air-gap flux distribution it reduces field structure iron losses commutator action is not possible otherwise dc machines are comparatively low rating machines. it gives more uniform air-gap flux distribution ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A small air gap in poly phase induction motor helps to reduce chance of crawling. reduce magnetizing current. increase starting torque. reduce chance of cogging. reduce chance of crawling. reduce magnetizing current. increase starting torque. reduce chance of cogging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series booster is a series wound DC generator. separately excited DC generator. permanent magnet DC generator. shunt wound DC generator. series wound DC generator. separately excited DC generator. permanent magnet DC generator. shunt wound DC generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be 25 kW. 23.06 kW. 24.11 kW. 26.21 kW. 25 kW. 23.06 kW. 24.11 kW. 26.21 kW. ANSWER DOWNLOAD EXAMIANS APP
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