Single Phase Motors When a universal motor is operated on no load, its speed is limited by Weight of the armature Supply voltage frequency Windage and friction Armature reaction Weight of the armature Supply voltage frequency Windage and friction Armature reaction ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors If a particular application needs high speed and high starting torque, then which of the following motor will bepreferred ? Capacitor start motor Shaded pole type motor Universal motor Capacitor start and run motor Capacitor start motor Shaded pole type motor Universal motor Capacitor start and run motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding a reluctance motor is incorrect ? Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor It requires no D.C. field excitation for its operation It cannot be reversed, ordinarily It is nothing else but a single-phase, salient pole synchronous-induction motor Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor It requires no D.C. field excitation for its operation It cannot be reversed, ordinarily It is nothing else but a single-phase, salient pole synchronous-induction motor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The resistance split phase induction motor is used in those application where ______ Starting period is long None of the listed here Starting is infrequent Starting is frequent Starting period is long None of the listed here Starting is infrequent Starting is frequent ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In a shaded pole motor the rotating magnetic field is produced by using Shading coils Copper windings Salient poles A capacitor Shading coils Copper windings Salient poles A capacitor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The rotor slots, in an induction motor, are usually not quite parallel to the shaft because it improves the power factor helps the rotor teeth to remain under the stator teeth helps in reducing the tendency of the rotor teeth to remain under the stator teeth improves the efficiency improves the power factor helps the rotor teeth to remain under the stator teeth helps in reducing the tendency of the rotor teeth to remain under the stator teeth improves the efficiency ANSWER DOWNLOAD EXAMIANS APP
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