Single Phase Motors Which of the following single-phase motors has relatively poor starting torque ? Universal motor Repulsion motor All single phase motors have zero starting torque Capacitor motor Universal motor Repulsion motor All single phase motors have zero starting torque Capacitor motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A 4 pole, 50 Hz single phase induction motor has a slip of 5% . The speed of the motor will be 1425 rpm 1500 rpm None of the listed here 1200 rpm 1425 rpm 1500 rpm None of the listed here 1200 rpm ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Centrifugal switch disconnects the auxiliary winding of the motor at about ____ percent of synchronous speed 30 to 40 100 80 to 90 70 to 80 30 to 40 100 80 to 90 70 to 80 ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Most of the fractional horsepower motors have either soft and porous bearings ball or roller bearings hard and annealed bearings plain or sleeve bearings soft and porous bearings ball or roller bearings hard and annealed bearings plain or sleeve bearings ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In repulsion motor, maximum torque is developed when brush axis coincides with the field axis brush axis is at 45° electrical to the field axis brush axis is at 90° electrical to the field axis None of these brush axis coincides with the field axis brush axis is at 45° electrical to the field axis brush axis is at 90° electrical to the field axis None of these ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The speed control of universal motor used for sewing machines is by Friction Centrifugal mechanism Varying the resistance Tapping the field Friction Centrifugal mechanism Varying the resistance Tapping the field ANSWER DOWNLOAD EXAMIANS APP
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