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 1279 rpm 1120 rpm 1540 rpm 1449 rpm 1279 rpm 1120 rpm 1540 rpm 1449 rpm ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The capacitor start, capacitor run motor has _______ Low efficiency No centrifugal switch Low power factor Noisy operation Low efficiency No centrifugal switch Low power factor Noisy operation ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Centrifugal switch disconnects the auxiliary winding of the motor at about ____ percent of synchronous speed 70 to 80 30 to 40 80 to 90 100 70 to 80 30 to 40 80 to 90 100 ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In a repulsion motor, brushes are connected Together by a jumper wire To stator winding To starting winding To the external supply Together by a jumper wire To stator winding To starting winding To the external supply ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In a universal motor, the most common cause of brush sparking is open armature winding all of these shorted field winding? high commutator mica open armature winding all of these shorted field winding? high commutator mica ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding a reluctance motor is incorrect ? It cannot be reversed, ordinarily Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor It is nothing else but a single-phase, salient pole synchronous-induction motor It requires no D.C. field excitation for its operation It cannot be reversed, ordinarily Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor It is nothing else but a single-phase, salient pole synchronous-induction motor It requires no D.C. field excitation for its operation ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS