Electrical Machines When a transformer is loaded, the secondary terminal voltage drops. That means power factor is lagging. leading. unity. zero. lagging. leading. unity. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. Find the speed of stator magnetic field with respect to rotor? 1500 rpm 30 rpm zero 1470 rpm 1500 rpm 30 rpm zero 1470 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In above question, find rms line voltage for delta connection? 100 V. 230.2 V. 399 V. 50 V. 100 V. 230.2 V. 399 V. 50 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve low starting torque. reduced size. high efficiency. quick acceleration. low starting torque. reduced size. high efficiency. quick acceleration. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The squirrel cage induction motors are provided with blades in order to none of these. balance the rotor dynamically. facilitate cooling of rotor. eliminate noise. none of these. balance the rotor dynamically. facilitate cooling of rotor. eliminate noise. 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
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