Single Phase Motors If a DC series motor is operated on AC supply, it will All of the listed here Have poor power factor Have poor efficiency Spark excessively All of the listed here Have poor power factor Have poor efficiency Spark excessively ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The full load efficiency of a shaded pole motor is about _______ 5 to 10% 30 to 35% 70 to 80% 60 to 70% 5 to 10% 30 to 35% 70 to 80% 60 to 70% 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. Less than None of the listed here The same as More than Less than None of the listed here The same as More than ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding hysteresis motor is in incorrect ? 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 It is extremely sensitive to fluctuations in supply voltage ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The direction of rotation of an hysteresis motor is determined by position of shaded pole with respect to main pole interchanging the supply leads none of these retentivity of the rotor material position of shaded pole with respect to main pole interchanging the supply leads none of these retentivity of the rotor material ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The single phase shaded pole motor has _____ High starting torque Wound rotor High power factor Squirrel cage motor High starting torque Wound rotor High power factor Squirrel cage motor ANSWER DOWNLOAD EXAMIANS APP
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