Electrical Machines Dynamic braking is employed to brake None of these reversing drive both 1 and 2 non reversing drive None of these reversing drive both 1 and 2 non reversing drive ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a induction motor. DC motor. variable reluctance motor. switched reluctance motor. induction motor. DC motor. variable reluctance motor. switched reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc generator operating on load with its brushes on the geometrical neutral axis (GNA), the magnetic neutral axis (MNA) is shifted in the direction of rotation. Now, if the brushes are given a lead of 90° (electrical), then the MNA will shift forward by less than 90° coincide with the GNA shift forward by more than 90° shift forward by 90° shift forward by less than 90° coincide with the GNA shift forward by more than 90° shift forward by 90° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For satisfactory performance of 3-phase 480V, 60 Hz induction motor, the supply voltage at 50 Hz should be equal to 350 V. 420 V. 480 V. 400 V. 350 V. 420 V. 480 V. 400 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC motor is connected across the AC supply it will Not run. Burn. Run at normal speed. Run at lower speed. Not run. Burn. Run at normal speed. Run at lower speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test of 3-phase induction motor gives which of the following? variable loss both A and B constant loss None of these variable loss both A and B constant loss None of these ANSWER DOWNLOAD EXAMIANS APP
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