Electrical Machines Maximum efficiency will occur, when copper loss is_______to iron loss? greater than less than any of the above equal to greater than less than any of the above equal to ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? pole stacking compensating winding pole chamfering All of these pole stacking compensating winding pole chamfering All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf of a DC machine has trapezoidal space distribution and is stationary in space. triangular space distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. stepped distribution and rotates at the speed of armature. trapezoidal space distribution and is stationary in space. triangular space distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. stepped distribution and rotates at the speed of armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cross magnetization effects which of the following? reduces the terminal voltage both 2 and 3 reduction in main field flux commutation reduces the terminal voltage both 2 and 3 reduction in main field flux commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 1450W 2000W 1920W 1820W 1450W 2000W 1920W 1820W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor, the starting torque developed is proportional to 1/V² V² 1/V supply voltage V 1/V² V² 1/V supply voltage V ANSWER DOWNLOAD EXAMIANS APP
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