Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called harmonics. resonance. cogging. crawling. harmonics. resonance. cogging. crawling. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shapers and slotters which motor are preferred? Double cage motor. Synchronous motor. Squirrel cage IM. Slip ring IM. Double cage motor. Synchronous motor. Squirrel cage IM. Slip ring IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for series motors. differential compound motors. separately excited motors. shunt motors. series motors. differential compound motors. separately excited motors. shunt motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an induction machine is run at above the synchronous speed it acts as a synchronous motor an induction motor an induction generator None of these a synchronous motor an induction motor an induction generator None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test of 3-phase induction motor gives which of the following? variable loss both A and B constant loss None of these variable loss both A and B constant loss None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is used for the _______ ? both 1 and 2 above rated speed below rated speed None of these both 1 and 2 above rated speed below rated speed None of these ANSWER DOWNLOAD EXAMIANS APP
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