Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Eight times. Four times. Remains same. Doubled. Eight times. Four times. Remains same. Doubled. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field system of an alternator is usually excited 3 - Φ, 50 Hz and 400 V. 230 V AC. 110 / 220 V AC. 250 / 250 V DC. 3 - Φ, 50 Hz and 400 V. 230 V AC. 110 / 220 V AC. 250 / 250 V DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a standard frequency the machine operates at a particular speed known as any of the above. normal speed. synchronous speed. slip speed. any of the above. normal speed. synchronous speed. slip speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for swing action which motor is preferred? AC slip ring IM. Capacitor type induction motors. DC series motor. Reluctance motor. AC slip ring IM. Capacitor type induction motors. DC series motor. Reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two transformers operating in parallel will share the load depending on their efficiency leakage reactance ratings per unit impedance efficiency leakage reactance ratings per unit impedance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will remain constant. decrease. any of the above. increase. remain constant. decrease. any of the above. increase. ANSWER DOWNLOAD EXAMIANS APP