Electrical Machines Flux density under trailing pole tips in case of generator will increase either increase or decrease decrease None of these increase either increase or decrease decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating windings are used in DC generators to neutralize the cross magnetizing effect of the armature reaction. to provide path for the circulation of cooling air. mainly to reduce the eddy currents by providing local short circuit. None of these to neutralize the cross magnetizing effect of the armature reaction. to provide path for the circulation of cooling air. mainly to reduce the eddy currents by providing local short circuit. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC motor used for shears and punches is Shunt motor. Differential compound motor. Series motor. Cummulative compound motor. Shunt motor. Differential compound motor. Series motor. Cummulative compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series 66.91 V. 86.91 V. 76.91 V. 56.91 V. 66.91 V. 86.91 V. 76.91 V. 56.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An unexcited single phase synchronous motor is repulsion motor. AC series motor. universal motor. reluctance motor. repulsion motor. AC series motor. universal motor. reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In large sized DC machines the compensating windings are provided to None of these neutralize voltage induced in coil due to fluctuation of l reduce eddy current losses by providing local short circuits. compensate for the decrease in speed due to increase of load. None of these neutralize voltage induced in coil due to fluctuation of l reduce eddy current losses by providing local short circuits. compensate for the decrease in speed due to increase of load. ANSWER DOWNLOAD EXAMIANS APP
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