Single Phase Motors In a universal motor, the most common cause of brush sparking is high commutator mica shorted field winding? open armature winding all of these high commutator mica shorted field winding? open armature winding all of these 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 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
Single Phase Motors A shaded pole does not posses Commutator All of the listed here Capacitor Centrifugal switch Commutator All of the listed here Capacitor Centrifugal switch ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Hysteresis motor is particularly useful for high-quality record players and tape-recorders because it revolves synchronously it is not subject to any magnetic or mechanical vibrations 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 revolves synchronously it is not subject to any magnetic or mechanical vibrations 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 ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The speed/load characteristics of a universal motor is same as that of DC shunt motor DC series motor AC motor None of the listed here DC shunt motor DC series motor AC motor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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