Electrical Machines Iron losses in a DC machine are independent of variation in speed. voltage. load. speed and voltage. speed. voltage. load. speed and voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 V DC generator in run at rated speed with no excitation. The open circuit voltage will be very small, say about 2 or 3 V. about 100 V. 250 V. zero. very small, say about 2 or 3 V. about 100 V. 250 V. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors is/are widely used? either of these slip ring induction motor None of these squirrel cage induction motor either of these slip ring induction motor None of these squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? None of these MNA either GNA or MNA GNA None of these MNA either GNA or MNA GNA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor, damper windings are provided on None of these pole faces. stator frame. rotor shaft. None of these pole faces. stator frame. rotor shaft. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC motors has got maximum relieving property? Cummulative compound. Series. Differentical compound. Shunt. Cummulative compound. Series. Differentical compound. Shunt. ANSWER DOWNLOAD EXAMIANS APP
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