Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 0.05. 0.1. 1.0. 0.5. 0.05. 0.1. 1.0. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing of DC generator means 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. increasing flux density by providing extra ampere-turns in field. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For larger units high torque it is preferred to use DC shunt motor. Partial motor. Universal motor. Slip induction motor. DC shunt motor. Partial motor. Universal motor. Slip induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor is, in general analogous to two winding transformer with secondary short circuited. auto transformer. None of these two winding transformer with secondary open circuited. two winding transformer with secondary short circuited. auto transformer. None of these two winding transformer with secondary open circuited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Eight times. Doubled. Four times. Remains same. Eight times. Doubled. Four times. Remains same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an additional resistance is connected in series with a DC motor operating at rated speed, the speed of the motor will Increase. Reduce. Remain unaltered. Oscillate around the normal speed. Increase. Reduce. Remain unaltered. Oscillate around the normal speed. ANSWER DOWNLOAD EXAMIANS APP
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