Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 0 Hz 5 Hz 1 Hz 50 Hz 0 Hz 5 Hz 1 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor, damper windings are provided on rotor shaft. stator frame. pole faces. None of these rotor shaft. stator frame. pole faces. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. Highest speed of alternator is 600 rpm. 3600 rpm. 3000 rpm. 500 rpm. 600 rpm. 3600 rpm. 3000 rpm. 500 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC shunt generator working on load, the brushes are moved forward in the direction of rotation, as a result of this, commutation will worsen and terminal voltage will rise. improve but terminal voltage will fall. improve and terminal voltage will rise . worsen and terminal voltage will fall worsen and terminal voltage will rise. improve but terminal voltage will fall. improve and terminal voltage will rise . worsen and terminal voltage will fall ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following motor is preferred for belt conveyor? Universal motor. Synchronous motors. Slip ring induction motor. Reluctance motor. Universal motor. Synchronous motors. Slip ring induction motor. Reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Straight line through the origin. Rectangular hyperbola Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. Rectangular hyperbola Circle about the origin. Straight line parallel to the speed axis. ANSWER DOWNLOAD EXAMIANS APP
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