Electrical Machines Capacitor fitted with ceiling / table fans is of the value of 1 - 2 µF. 5 - 10 F. 2 - 3 µF. 0.1 µF. 1 - 2 µF. 5 - 10 F. 2 - 3 µF. 0.1 µF. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole dc generator runs at 1500 rpm. The frequencyof current in the armature winding is 0 Hz 25 Hz 50 Hz 100 Hz 0 Hz 25 Hz 50 Hz 100 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at unity power factor. lagging power factor. leading power factor. any of the above. unity power factor. lagging power factor. leading power factor. any of the above. 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 DC motor. induction motor. switched reluctance motor. variable reluctance motor. DC motor. induction motor. switched reluctance motor. variable reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Sparkless commutation can be achieved by employing any one or more of the above methods. high resistance carbon brushes. compensating winding. inter poles. any one or more of the above methods. high resistance carbon brushes. compensating winding. inter poles. 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 1820W 2000W 1920W 1450W 1820W 2000W 1920W ANSWER DOWNLOAD EXAMIANS APP
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