Single Phase Motors Which of the following motors can be used for unity power factor ? Shaded pole motor Hysteresis motor Capacitor run motor Schrage motor Shaded pole motor Hysteresis motor Capacitor run motor Schrage motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A repulsion motor is equipped with None of these both (A) and (B) slip rings commutator None of these both (A) and (B) slip rings commutator 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 1120 rpm 1449 rpm 1540 rpm 1279 rpm 1120 rpm 1449 rpm 1540 rpm 1279 rpm 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 worn bearings None of these short-circuit in the winding open-circuit in the winding worn bearings None of these short-circuit in the winding ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will Run as induction motor Become unstable Fall out of synchronism and come to stand still Draw excessive armature current and may burn out Run as induction motor Become unstable Fall out of synchronism and come to stand still Draw excessive armature current and may burn out ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following application make use of a universal motor? Portable tools Lathe machines Oil expeller Floor polishing machine Portable tools Lathe machines Oil expeller Floor polishing machine ANSWER DOWNLOAD EXAMIANS APP