Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is 1.92 -1.92 -0.08 0.08 1.92 -1.92 -0.08 0.08 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: pole core. under leading pole tip. under the interpole. under trailing pole tip. pole core. under leading pole tip. under the interpole. under trailing pole tip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of DC shunt motor if load is reduced DC Shunt Motor The speed will remains almost constant. The speed will increase in proportion to reduction in load. The speed will increase abruptly. DC Shunt Motor 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 If the source voltage of a DC motor is increased, which of the following will decrease? Starting torque. Full load current. Starting torque, operating speed, full load current. Operating speed. Starting torque. Full load current. Starting torque, operating speed, full load current. Operating speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor, the starting torque developed is proportional to V² supply voltage V 1/V 1/V² V² supply voltage V 1/V 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of an induction motor operating at no load will have a value around 0.2 lead 0.2 lag unity 0.9 lag 0.2 lead 0.2 lag unity 0.9 lag ANSWER DOWNLOAD EXAMIANS APP
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