Electrical Machines In DC shunt motor if load is increased, the speed increase proportional. increased slightly. remains constant. reduce slightly. increase proportional. increased slightly. remains constant. reduce slightly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt. 320 Amp. 0.5 Amp. 800 Amp. 400 Amp. 320 Amp. 0.5 Amp. 800 Amp. 400 Amp. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High starting torque and low starting current is the advantage of hysteresis motor. stepper motor. slip ring induction motor. squirrel cage induction motor. hysteresis motor. stepper motor. slip ring induction motor. squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical load on it because otherwise it will develop excessive speed and damage itself. open fuse or circuit breaker. produce sparking at brushes. draw too much current. develop excessive speed and damage itself. open fuse or circuit breaker. produce sparking at brushes. draw too much current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm? 30 Hz. 35 Hz. 20 Hz. Can be determined. 30 Hz. 35 Hz. 20 Hz. Can be determined. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is used in grinders? Capacitor start capacitor run IM. Capacitor start IM. Split phase IM. Synchronous motor. Capacitor start capacitor run IM. Capacitor start IM. Split phase IM. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
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