Electrical Machines The power factor of an induction motor operating at no load will have a value around unity 0.2 lead 0.9 lag 0.2 lag unity 0.2 lead 0.9 lag 0.2 lag ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer the magnetic coupling between the primary and secondary winding can be increased by using soft material for winding. increasing the number of turns. using the magnetic core of low reluctance. using transformer oil of better quality. using soft material for winding. increasing the number of turns. using the magnetic core of low reluctance. using transformer oil of better quality. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Avoid sparking. Limit the current. Limit the flux. Limit the speed. Avoid sparking. Limit the current. Limit the flux. Limit the speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The noise resulting from vibrations of lamination set by magnetic forces, is termed as boo. magnetostriction. zoom. hum. boo. magnetostriction. zoom. hum. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has more stability both motors has same stability cylindrical motor None of these salient pole motor both motors has same stability cylindrical motor None of these salient pole motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase supply voltage None of these rotor resistance supply frequency supply voltage None of these rotor resistance supply frequency ANSWER DOWNLOAD EXAMIANS APP
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