Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 1000 rpm 250 rpm 500 rpm 2000 rpm 1000 rpm 250 rpm 500 rpm 2000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation of the synchronous generator fails, it acts as a/an synchronous generator. synchronous motor. induction generator. induction motor. synchronous generator. synchronous motor. induction generator. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a DC Shunt motor if the load is decreased to some extent, what will happen to its speed? The speed will increase gradually. The speed will remains almost constant. The speed will increase in proportion to reduction in load. The speed will increase abruptly. The speed will increase gradually. The speed will remains almost constant. The speed will increase in proportion to reduction in load. The speed will increase abruptly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under commutation results in sparking at the middle of the brush. sparking the trailing edge of the brush. sparking at the leading edge of the brush. no sparking. sparking at the middle of the brush. sparking the trailing edge of the brush. sparking at the leading edge of the brush. no sparking. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is zero. less than normal speed. normal speed. more than normal speed. zero. less than normal speed. normal speed. more than normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 50 Hz 40 HZ 25 Hz 60 Hz 50 Hz 40 HZ 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
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