Single Phase Motors For the same rating, the efficiency of a single phase induction motor is _______ that of 3-phase induction motor. Less than The same as None of the listed here More than Less than The same as None of the listed here More than ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding hysteresis motor is in incorrect ? It is extremely quiet in operation It accelerates from rest to full-speed almost instantaneously Its high starting torque is due to its high rotor hysteresis loss It is extremely sensitive to fluctuations in supply voltage It is extremely quiet in operation It accelerates from rest to full-speed almost instantaneously Its high starting torque is due to its high rotor hysteresis loss It is extremely sensitive to fluctuations in supply voltage ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In repulsion motor, maximum torque is developed when brush axis is at 90° electrical to the field axis None of these brush axis is at 45° electrical to the field axis brush axis coincides with the field axis brush axis is at 90° electrical to the field axis None of these brush axis is at 45° electrical to the field axis brush axis coincides with the field axis ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Centrifugal switch disconnects the auxiliary winding of the motor at about ____ percent of synchronous speed 70 to 80 80 to 90 100 30 to 40 70 to 80 80 to 90 100 30 to 40 ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding repulsion-start induction motor is incorrect ? In fractional horse power motors, it has replaced the capacitor motors It is not easily reversed It makes quite a bit of noise on starting It requires more maintenance of commutator and other mechanical devices In fractional horse power motors, it has replaced the capacitor motors It is not easily reversed It makes quite a bit of noise on starting It requires more maintenance of commutator and other mechanical devices ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The wattage rating for a ceiling fan motor will be in the range 10 to 20 W 50 to 150 W 200 to 250 W 250 to 500 W 10 to 20 W 50 to 150 W 200 to 250 W 250 to 500 W ANSWER DOWNLOAD EXAMIANS APP
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