Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 45 ppm. 20 ppm. 35 ppm. 25 ppm. 45 ppm. 20 ppm. 35 ppm. 25 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of an induction motor operating at no load will have a value around 0.9 lag 0.2 lag unity 0.2 lead 0.9 lag 0.2 lag unity 0.2 lead ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is running at rated speed without any additional resistance in series. If an additional resistance is placedin series, the speed of motor Decreases. Increases. Remains unchanged. Oscillates around the rated speed. Decreases. Increases. Remains unchanged. Oscillates around the rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, the angle between the stator and rotor fields is 0o. dependent upon the load. 90o. 180o. 0o. dependent upon the load. 90o. 180o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine yoke offers mechanical protection to the machine both A and B flux path completion produce working flux mechanical protection to the machine both A and B flux path completion produce working flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening method is also called as-----------? constant torque control constant current control constant power control constant voltage control constant torque control constant current control constant power control constant voltage control ANSWER DOWNLOAD EXAMIANS APP
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