Electrical Machines In a single phase transformer the magnitude of leakage reactance is twice that of resistance of both primary and secondary. With secondary short circuited, the input power factor is 1/√5 1/√2 2/√5 1/3 1/√5 1/√2 2/√5 1/3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 2.73 KW. 5.46 KW. 1.644 KW. 0.9103 KW. 2.73 KW. 5.46 KW. 1.644 KW. 0.9103 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 0°. 45°. 75°. 30°. 0°. 45°. 75°. 30°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as f² f V V² f² f V V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following winding is connected in series with armature winding of DC machine? Compensating winding. Auxiliary winding. Commutating pole winding. Both Compensating and Commutating pole winding. Compensating winding. Auxiliary winding. Commutating pole winding. Both Compensating and Commutating pole winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor used in hair dryers? Synchronous motors. Split phase IM. Shaded pole IM. Cage induction motor. Synchronous motors. Split phase IM. Shaded pole IM. Cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
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