Single Phase Motors When a universal motor is operated on no load, its speed is limited by Windage and friction Weight of the armature Supply voltage frequency Armature reaction Windage and friction Weight of the armature Supply voltage frequency Armature reaction ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A 50 Hz, 4- pole single phase induction motor will have a synchronous speed of ______ None of the listed here 1200 rpm 750 rpm 1500 rpm None of the listed here 1200 rpm 750 rpm 1500 rpm ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding hysteresis motor is in incorrect ? It is extremely sensitive to fluctuations in supply voltage It accelerates from rest to full-speed almost instantaneously It is extremely quiet in operation Its high starting torque is due to its high rotor hysteresis loss It is extremely sensitive to fluctuations in supply voltage It accelerates from rest to full-speed almost instantaneously It is extremely quiet in operation Its high starting torque is due to its high rotor hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors For the same rating, the efficiency of a single phase induction motor is _______ that of 3-phase induction motor. None of the listed here The same as Less than More than None of the listed here The same as Less than More than ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Burning out of winding is due to short circuited capacitor open circuiting of capacitor None of these capacitor value hiving changed short circuited capacitor open circuiting of capacitor None of these capacitor value hiving changed ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A Reluctance motor Is self starting Need no dc excitation All of the listed here Is constant speed motor Is self starting Need no dc excitation All of the listed here Is constant speed motor ANSWER DOWNLOAD EXAMIANS APP
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