Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? MNA GNA either GNA or MNA None of these MNA GNA either GNA or MNA None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor used in hair dryers? Shaded pole IM. Split phase IM. Cage induction motor. Synchronous motors. Shaded pole IM. Split phase IM. Cage induction motor. Synchronous motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor during DC rheostatic braking is 1 - s. 2 + s. s. 2 - s. 1 - s. 2 + s. s. 2 - s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are effects of armature reaction? increase the iron loss increase the maintenance and repair increases the design cost All of these increase the iron loss increase the maintenance and repair increases the design cost All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator sparking between brushes and commutator surface may be due to too rapid reversal of current. any of the above. over commutation. under commutation. too rapid reversal of current. any of the above. over commutation. under commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Satisfactory commutation of DC machine requires All of these brushes should smoothly run in the holders. smooth, concentric commutator properly undercut. brushes should be of proper grade and size. All of these brushes should smoothly run in the holders. smooth, concentric commutator properly undercut. brushes should be of proper grade and size. ANSWER DOWNLOAD EXAMIANS APP
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