Electrical Machines The stator frame in an induction motor is used to hold armature stamping in position. provide return path for the flux. ventilate the armature. protect the whole machine. hold armature stamping in position. provide return path for the flux. ventilate the armature. protect the whole machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will burn. run at very high speed. start haunting. run at very low speed. burn. run at very high speed. start haunting. run at very low speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In the 3-phase induction motor, the resultant flux is of a constant nature and is 3/2 times maximum value of flux due to any phase 3 times maximum value of flux due to any phase equal to φm, where φm is the maximum flux due to any phase 1/2 times maximum value of flux due to any phase 3/2 times maximum value of flux due to any phase 3 times maximum value of flux due to any phase equal to φm, where φm is the maximum flux due to any phase 1/2 times maximum value of flux due to any phase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The dc motor which can provide zero speed regulation at full load without any controller, is differential compound. cumulative compound. shunt. series. differential compound. cumulative compound. shunt. series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is more expensive for same KW output rating ? Synchronous motor. Induction motor. AC single phase motor. DC Shunt Motor Synchronous motor. Induction motor. AC single phase motor. DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous reactance( Xs) is the reactance due to leakage flux reactance either due to armature reaction or leakage flux reactance due to armature reaction of the machine combined reactance due to armature reaction and leakage flux reactance due to leakage flux reactance either due to armature reaction or leakage flux reactance due to armature reaction of the machine combined reactance due to armature reaction and leakage flux ANSWER DOWNLOAD EXAMIANS APP
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