Single Phase Motors If the capacitor of a single-phase motor is short-circuited the motor will run the motor will run in the same direction at reduced r.p.m. the motor will run in reverse direction the motor will not start the motor will run the motor will run in the same direction at reduced r.p.m. the motor will run in reverse direction the motor will not start 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 is nothing else but a single-phase, salient pole synchronous-induction motor 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 requires no D.C. field excitation for its operation It is nothing else but a single-phase, salient pole synchronous-induction motor It cannot be reversed, ordinarily ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors If a DC series motor is operated on AC supply, it will All of the listed here Have poor efficiency Spark excessively Have poor power factor All of the listed here Have poor efficiency Spark excessively Have poor power factor ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Which of the following statements regarding hysteresis motor is in incorrect ? It is extremely quiet in operation Its high starting torque is due to its high rotor hysteresis loss It is extremely sensitive to fluctuations in supply voltage It accelerates from rest to full-speed almost instantaneously It is extremely quiet in operation Its high starting torque is due to its high rotor hysteresis loss It is extremely sensitive to fluctuations in supply voltage It accelerates from rest to full-speed almost instantaneously ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In repulsion motor, maximum torque is developed when brush axis is at 45° electrical to the field axis brush axis is at 90° electrical to the field axis None of these brush axis coincides with the field axis brush axis is at 45° electrical to the field axis brush axis is at 90° electrical to the field axis None of these brush axis coincides with the field axis ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Electrical faults in a motor occur must commonly in its Commutator Brushes Motor winding Control equipment Commutator Brushes Motor winding Control equipment ANSWER DOWNLOAD EXAMIANS APP
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