Electrical Machines Iron losses in a DC machine are independent of variation in voltage. speed. load. speed and voltage. voltage. speed. load. speed and voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. What is the operating frequency, if the load is 600 MW? 45 HZ 50 Hz 48 Hz 48.5 Hz 45 HZ 50 Hz 48 Hz 48.5 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of squirrel cage induction motor is both A and B low at rated load only low at light loads only low at heavy loads only both A and B low at rated load only low at light loads only low at heavy loads only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC motor is connected across the AC supply it will Run at lower speed. Burn. Not run. Run at normal speed. Run at lower speed. Burn. Not run. Run at normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For same HP rating and full load speed which of following motor has poor starting torque? Series. Differently compounded. Shunt. Cummulative compound. Series. Differently compounded. Shunt. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sparking at the the brushes, in a DC machines is due to high resistance of carbon brushes. presence of commutator. armature reaction. reactance voltage. high resistance of carbon brushes. presence of commutator. armature reaction. reactance voltage. ANSWER DOWNLOAD EXAMIANS APP
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