Electrical Machines Satisfactory commutation of DC machine requires brushes should smoothly run in the holders. brushes should be of proper grade and size. smooth, concentric commutator properly undercut. All of these brushes should smoothly run in the holders. brushes should be of proper grade and size. smooth, concentric commutator properly undercut. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to an induction motor, the air gap in a DC motor is less than 50%. between 50% and 90%. same. more. less than 50%. between 50% and 90%. same. more. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 100Hz. 150Hz. 200Hz. 50Hz. 100Hz. 150Hz. 200Hz. 50Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a synchronous motor is running at synchronous speed, the damper winding produces both 1 and 2. damping torqe. no torque. eddy current torque. both 1 and 2. damping torqe. no torque. eddy current torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In above questions, find the power delivered by each of the alternators to a load of impedance 6Ω(resistive) 3190 W, 5040 W. 1000 W, 5040 W. 6000 W, 7000 W. 100 W, 2000 W. 3190 W, 5040 W. 1000 W, 5040 W. 6000 W, 7000 W. 100 W, 2000 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following components of a DC generator plays vital role for providing direct electric current of a DC generator? Eye bolt. Dummy coils. Commutator. Equalizer rings. Eye bolt. Dummy coils. Commutator. Equalizer rings. ANSWER DOWNLOAD EXAMIANS APP
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