Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. any of the above remains unaffected decreases increases any of the above remains unaffected decreases increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor operates in stable region at which of the following slip? unity slip high slip region both 1 and 2 low slip region unity slip high slip region both 1 and 2 low slip region ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under operating conditions the rotor conductor should be _________________ in induction motor. always closed. always opened. semi closed or semi opened. none. always closed. always opened. semi closed or semi opened. none. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 4 pole lap winding is used. The number of parallel paths are? 8 1 2 4 8 1 2 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shaded pole induction motors, the flux moves from ------------- region to ----------------- region respectively? unshaded, unshaded shaded, unshaded shaded, shaded unshaded, shaded unshaded, unshaded shaded, unshaded shaded, shaded unshaded, shaded ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will remain unchanged. depend on other factors. increase by 5 %. reduce by 5 %. remain unchanged. depend on other factors. increase by 5 %. reduce by 5 %. ANSWER DOWNLOAD EXAMIANS APP
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