Single Phase Motors Which of the following motors is used for unity power factor ? Universal motor Reluctance motor Schrage motor Hysteresis motor Universal motor Reluctance motor Schrage motor Hysteresis motor 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 Become unstable Draw excessive armature current and may burn out Fall out of synchronism and come to stand still Run as induction motor Become unstable Draw excessive armature current and may burn out Fall out of synchronism and come to stand still Run as induction motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following applications would need the smallest size of motor? Sewing machine Electric clock Domestic mixi Table fan Sewing machine Electric clock Domestic mixi Table fan 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 1449 rpm 1120 rpm 1540 rpm 1279 rpm 1449 rpm 1120 rpm ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Capacitor motors _______resistance split phase induction motors. Poor starting torque than Cost about the same as Are costlier than Are less costly than Poor starting torque than Cost about the same as Are costlier than Are less costly than ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In a repulsion motor, brushes are connected To the external supply To stator winding To starting winding Together by a jumper wire To the external supply To stator winding To starting winding Together by a jumper wire ANSWER DOWNLOAD EXAMIANS APP