Electrical Machines No load test of 3-phase induction motor gives which of the following? variable loss None of these constant loss both A and B variable loss None of these constant loss both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf remains constant. increases upto a limit and then remains almost constant. decreases. increases. remains constant. increases upto a limit and then remains almost constant. decreases. increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 V DC generator in run at rated speed with no excitation. The open circuit voltage will be about 100 V. zero. very small, say about 2 or 3 V. 250 V. about 100 V. zero. very small, say about 2 or 3 V. 250 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An unexcited single phase synchronous motor is repulsion motor. universal motor. AC series motor. reluctance motor. repulsion motor. universal motor. AC series motor. reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 8. 2. 6. 4. 8. 2. 6. 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of None of these either stator winding or rotor winding. stator winding. rotor winding. None of these either stator winding or rotor winding. stator winding. rotor winding. ANSWER DOWNLOAD EXAMIANS APP
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