Electrical Machines Select the motor that should not be started on no load? Brushless DC motor. Compound motor. Series motor. Shunt motor. Brushless DC motor. Compound motor. Series motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 40 HZ 25 Hz 60 Hz 50 Hz 40 HZ 25 Hz 60 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole, 50 Hz induction motor 4 % slip, calculate frequency of the rotor emf? 2 Hz. 50 Hz. 3 Hz. 10 Hz. 2 Hz. 50 Hz. 3 Hz. 10 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The maximum power developed in cylindrical synchronous machine is occurs at a load angle of 90o. 0o. Greater than 90o. less than 90o. 90o. 0o. Greater than 90o. less than 90o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer action requires a alternating magnetic lux. increasing magnetic flux. alternating electric flux. constant magnetic flux. alternating magnetic lux. increasing magnetic flux. alternating electric flux. constant magnetic flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the e.m.f. generated by a 4 pole lap connected DC Generator rotating at 1500 r.p.m.? Its flux per pole is 0.4 mWb and total no of armature conductors is 1000. 40 volts. 10 volts. 30 volts. 20 volts. 40 volts. 10 volts. 30 volts. 20 volts. ANSWER DOWNLOAD EXAMIANS APP
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