DC Motors Which method of braking is generally used in elevators? Regenerative braking Plugging Rheostat braking None of these Regenerative braking Plugging Rheostat braking None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following loss in a D.C. generator varies significantly with the load current? Windage loss Field copper loss None of these Armature copper loss Windage loss Field copper loss None of these Armature copper loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Air compressors Pumping sets Machine shops Electric traction Air compressors Pumping sets Machine shops Electric traction ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 2.0 0.5 1.0 4.0 2.0 0.5 1.0 4.0 ANSWER DOWNLOAD EXAMIANS APP
DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The armature may burn The motor will run noisy The motor will continue to run The motor will stop The armature may burn The motor will run noisy The motor will continue to run The motor will stop ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor can be easily identified by Commutator Yoke Winding Size of conductor Commutator Yoke Winding Size of conductor ANSWER DOWNLOAD EXAMIANS APP
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