Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM has a rotor speed of 987 rpm find rotor frequency? 0.65 Hz. 0.70 Hz. 0.75 Hz. 60 Hz. 0.65 Hz. 0.70 Hz. 0.75 Hz. 60 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V. 225 V. 230 V. 222 V. 220 V. 225 V. 230 V. 222 V. 220 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm. Find the rotor efficiency? 96% 92% 95% 94% 96% 92% 95% 94% 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 /K² K²R1 R1 /K K×R1 R1 /K² K²R1 R1 /K K×R1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shapers and slotters which motor are preferred? Squirrel cage IM. Slip ring IM. Synchronous motor. Double cage motor. Squirrel cage IM. Slip ring IM. Synchronous motor. Double cage motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of double squirrel cage winding on the rotor provides higher efficiency. low noise. reduced starting torque. a large starting torque. higher efficiency. low noise. reduced starting torque. a large starting torque. ANSWER DOWNLOAD EXAMIANS APP
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