Single Phase Motors In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will Draw excessive armature current and may burn out Fall out of synchronism and come to stand still Become unstable Run as induction motor Draw excessive armature current and may burn out Fall out of synchronism and come to stand still Become unstable Run as induction motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A capacitor-start single phase induction motor is switched on to supply with its capa-citor replaced by an inductor of equivalent reactance value. It will not start at all start and run slowly start and run at rated speed start and then stop not start at all start and run slowly start and run at rated speed start and then stop 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 1120 rpm 1279 rpm 1449 rpm 1540 rpm 1120 rpm 1279 rpm 1449 rpm ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following motors has highest starting torque ? Capacitor-start motor Repulsion motor Shaped pole motor Split-phase motor Capacitor-start motor Repulsion motor Shaped pole motor Split-phase motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The speed control of universal motor used for sewing machines is by Tapping the field Friction Centrifugal mechanism Varying the resistance Tapping the field Friction Centrifugal mechanism Varying the resistance ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors At starting, the line current of a capacitor start induction motor is ______ the normal full load current. 8 to 10 times Equal to 4 to 5 times 7 to 8 times 8 to 10 times Equal to 4 to 5 times 7 to 8 times ANSWER DOWNLOAD EXAMIANS APP
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