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 Hysteresis motor is particularly useful for high-quality record players and tape-recorders because it can be easily manufactured in extremely small sizes of up to 1 W output it is not subject to any magnetic or mechanical vibrations it revolves synchronously it develops hysteresis torque which is extremely steady both in amplitude and phase it can be easily manufactured in extremely small sizes of up to 1 W output it is not subject to any magnetic or mechanical vibrations it revolves synchronously it develops hysteresis torque which is extremely steady both in amplitude and phase ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A 4-pole , 50 Hz single phase induction motor is running with a slip of 3.4%. The speed of the motor is 1540 rpm 1279 rpm 1120 rpm 1449 rpm 1540 rpm 1279 rpm 1120 rpm 1449 rpm ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following motors can be used for unity power factor ? Shaded pole motor Capacitor run motor Schrage motor Hysteresis motor Shaded pole motor Capacitor run motor Schrage motor Hysteresis motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In a capacitor start, capacitor-run motor, _______ winding is cut out after starting. None of the listed here Starting Main Neither starting nor main None of the listed here Starting Main Neither starting nor main ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding hysteresis motor is in incorrect ? 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 It accelerates from rest to full-speed almost instantaneously ANSWER DOWNLOAD EXAMIANS APP
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