Electrical Machines The no load current in a transformer lags the applied voltage by about 75°. 90°. 0°. about 115°. about 75°. 90°. 0°. about 115°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A simple method of increasing the voltage of a DC generator is to increase the speed of shaft rotation. increase the number of turns in armature coil. increase the number of turns in field coil. increase the source frequency. increase the speed of shaft rotation. increase the number of turns in armature coil. increase the number of turns in field coil. increase the source frequency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motors are preferred for refrigeration and air conditioning in smaller units? Induction motors. Reluctance motors. Stepper motors. Universal motors. Induction motors. Reluctance motors. Stepper motors. Universal motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which 1 - Φ motor does operate at high power factor? Capacitor start. Capacitor run. Split phase. Shaded pole. Capacitor start. Capacitor run. Split phase. Shaded pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The maximum possible speed at which an alternator can be driven to generate 50 Hz and 4000 V is 3600 rpm. 3000 rpm. 1500 rpm. 4000 rpm. 3600 rpm. 3000 rpm. 1500 rpm. 4000 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a part of transformer? Tap changer. Commutator. Radiator. Conservator tank. Tap changer. Commutator. Radiator. Conservator tank. ANSWER DOWNLOAD EXAMIANS APP
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