The capacitors used in single-phase capacitor motors have no__________? A. voltage rating B. dielectric mediumC. polarity marking D. definite value

If a D.C. series motor is operated on A.C. supply, it will____________? A. spark excessively B. have poor efficiency C. have poor power factorD. all of the above

A universal motor is one which______________? A. can be operated either on D.C. or A.C. supply at approximately the same speed and output B. can be marketed internationally C. runs at dangerously high speed on no-load

In a A.C. series motor armature coils are usually connected to commutator____________? A. through resistance B. through reactances C. through capacitors D. solidly

A repulsion motor is equipped with__________? A. slip ringsB. commutator C. both A. and (b) D. none of the above

Which of the following motors has two separate windings on the motor ? A. Repulsion motorB. Repulsion induction motor C. Repulsion start induction run motor D. None of the above

Which of the following statements regarding a reluctance motor is incorrect ? A. It cannot be reversed, ordinarily B. It requires no D.C. field excitation for its operation C. It is nothing else but a single-phase, salient pole synchronous-induction motor…

A shaded pole motor does not possess___________? A. centrifugal switch B. capacitor C. commutatorD. all of the above

To reverse the direction of rotation of acapacitor start motor while it is running we should___________? A. disconnect motor from the supply till it stops then reconnect it to supply with reversed connection of main or auxiliary winding B. disconnect…

In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will_____________? A. become unstable B. draw excessive armature current and may burn out C. fall out of synchronism and come…