Electrical Machines The no load current in a transformer lags the applied voltage by 90°. about 115°. 0°. about 75°. 90°. about 115°. 0°. about 75°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of dynamically induced emf is utilized in choke. generator. transformer. thermocouple. choke. generator. transformer. thermocouple. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase supply frequency None of these rotor resistance supply voltage supply frequency None of these rotor resistance supply voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor start capacitor run provides none. high staring torque and high power factor. high staring torque only. high power factor only. none. high staring torque and high power factor. high staring torque only. high power factor only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Motors for fans and pumps are selected in the rpm range 375 to 500. 500 to 720. 1440 to 2880. 720 to 920. 375 to 500. 500 to 720. 1440 to 2880. 720 to 920. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An auto transformer having a transformation ratio of 0.8 supplies a load pf 10 KW. The power transfered inductively from the primary to secondary is 8 KW. 2 KW. 0. 10 KW. 8 KW. 2 KW. 0. 10 KW. ANSWER DOWNLOAD EXAMIANS APP
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