Single Phase Motors Which of the following statements regarding a reluctance motor is incorrect ? It is nothing else but a single-phase, salient pole synchronous-induction motor It cannot be reversed, ordinarily It requires no D.C. field excitation for its operation 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 cannot be reversed, ordinarily It requires no D.C. field excitation for its operation Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors For the same rating, the efficiency of a single phase induction motor is _______ that of 3-phase induction motor. Less than More than None of the listed here The same as Less than More than None of the listed here The same as ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The single phase shaded pole motor has _____ High starting torque Wound rotor Squirrel cage motor High power factor High starting torque Wound rotor Squirrel cage motor High power factor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors A repulsion motor is equipped with both (A) and (B) None of these slip rings commutator both (A) and (B) None of these slip rings commutator ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In a repulsion motor, brushes are connected To stator winding To the external supply Together by a jumper wire To starting winding To stator winding To the external supply Together by a jumper wire To starting winding ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Hysteresis motor is particularly useful for high-quality record players and tape-recorders because it develops hysteresis torque which is extremely steady both in amplitude and phase it is not subject to any magnetic or mechanical vibrations it revolves synchronously 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 is not subject to any magnetic or mechanical vibrations it revolves synchronously it can be easily manufactured in extremely small sizes of up to 1 W output ANSWER DOWNLOAD EXAMIANS APP
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