Single Phase Motors Which motor is normally free from mechanical and magnetic vibrations? Split phase motor Hysteresis motor Universal motor Shaded pole motor Split phase motor Hysteresis motor Universal motor Shaded pole motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors If a single phase induction motor runs slower than normal, the most likely defect is open-circuit in the winding short-circuit in the winding worn bearings None of these open-circuit in the winding short-circuit in the winding worn bearings None of these ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following single-phase motors has relatively poor starting torque ? Repulsion motor Universal motor All single phase motors have zero starting torque Capacitor motor Repulsion motor Universal motor All single phase motors have zero starting torque Capacitor motor 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 sensitive to fluctuations in supply voltage It is extremely quiet in operation Its high starting torque is due to its high rotor hysteresis loss It accelerates from rest to full-speed almost instantaneously It is extremely sensitive to fluctuations in supply voltage 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 Hysteresis motor is particularly useful for high-quality record players and tape-recorders because it is not subject to any magnetic or mechanical vibrations it can be easily manufactured in extremely small sizes of up to 1 W output it develops hysteresis torque which is extremely steady both in amplitude and phase it revolves synchronously it is not subject to any magnetic or mechanical vibrations it can be easily manufactured in extremely small sizes of up to 1 W output it develops hysteresis torque which is extremely steady both in amplitude and phase it revolves synchronously ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors If the capacitor of a single-phase motor is short-circuited the motor will run in reverse direction the motor will run the motor will run in the same direction at reduced r.p.m. the motor will not start the motor will run in reverse direction the motor will run the motor will run in the same direction at reduced r.p.m. the motor will not start ANSWER DOWNLOAD EXAMIANS APP
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