Electrical Machines For high current and low current rating which winding is employed to DC machine? Wave winding None of above Both lap and wave winding Lap winding Wave winding None of above Both lap and wave winding Lap winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing of DC generator means increasing flux density by providing extra ampere-turns in field. None of these neutralization of residual magnetism. creation of residual magnetism by a DC source. increasing flux density by providing extra ampere-turns in field. None of these neutralization of residual magnetism. creation of residual magnetism by a DC source. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? None of these Slip speed Synchronous speed Zero None of these Slip speed Synchronous speed Zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shaded pole induction motors, the flux moves from ------------- region to ----------------- region respectively? shaded, shaded shaded, unshaded unshaded, unshaded unshaded, shaded shaded, shaded shaded, unshaded unshaded, unshaded unshaded, shaded ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following windings are necessary in case of all dc machines? open type winding wave winding closed winding lap winding open type winding wave winding closed winding lap winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine the armature mmf is rotating with respect to field poles as well as armature. stationary with respect to field poles. rotating with respect to field poles. stationary with respect to armature. rotating with respect to field poles as well as armature. stationary with respect to field poles. rotating with respect to field poles. stationary with respect to armature. ANSWER DOWNLOAD EXAMIANS APP
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