Electrical Machines The torque speed characteristics of a AC servomotor is approximately any of the above hyperbola linearised parabola any of the above hyperbola linearised parabola ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is unity power factor None of these leading power factor lagging power factor unity power factor None of these leading power factor lagging power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to reduce copper loss. improve starting torque. improve power factor. improve efficiency. reduce copper loss. improve starting torque. improve power factor. improve efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which 1 - Φ motor does operate at high power factor? Capacitor start. Split phase. Capacitor run. Shaded pole. Capacitor start. Split phase. Capacitor run. Shaded pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will happen if the the supply terminals are reversed in case of a DC shunt motor? The motor will stop. The motor will run much faster in the same direction. The motor will run in reverse direction. The motor will run at its normal speed in the same direction as before. The motor will stop. The motor will run much faster in the same direction. The motor will run in reverse direction. The motor will run at its normal speed in the same direction as before. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, the angle between the stator and rotor fields is dependent upon the load. 0o. 90o. 180o. dependent upon the load. 0o. 90o. 180o. ANSWER DOWNLOAD EXAMIANS APP
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