Electrical Machines In a transformer which of the following losses are zero? Rotational loss Copper loss All of these Iron loss Rotational loss Copper loss All of these Iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? Synchronous speed Zero Slip speed None of these Synchronous speed Zero Slip speed None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short circuit test on a transformer gives copper loss at full load. copper loss at over load. copper loss at any load. copper loss at half load. copper loss at full load. copper loss at over load. copper loss at any load. copper loss at half load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, the angle between the stator and rotor fields is 90o. 180o. 0o. dependent upon the load. 90o. 180o. 0o. dependent upon the load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine yoke offers mechanical protection to the machine flux path completion both A and B produce working flux mechanical protection to the machine flux path completion both A and B produce working flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve high efficiency. low starting torque. quick acceleration. reduced size. high efficiency. low starting torque. quick acceleration. reduced size. ANSWER DOWNLOAD EXAMIANS APP
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