Which of the following motors will operate at high power factor ?

Related Mcqs:

In a shaded pole motor, the shading coil usually consist of___________?

A. a single turn of heavy wire which is in parallel with running winding B. a single turn of heavy copper wire which is short-circuited and carries only induced current C. a multilayer fine gauge copper wire in parallel with running winding D. none of the above...

Which of the following motors is used in mixies ?

A. Repulsion motor B. Reluctance motor C. Hysteresis motor D. Universal motor...

The repulsion-start induction-run motor is used because of___________?

A. good power factor B. high efficiency C. minimum cost D. high starting torque...

Speed control of a universal motor is achieved by__________?

A. varying field flux with tapped field windings B. connecting rheostat in series C. applying variable voltage by means of silicon controlled rectifier D. applying variable voltage by means of variable auto-transformer E. all of the above methods...

Most of the fractional horsepower motors have either___________?

A. hard and annealed bearings B. ball or roller bearings C. soft and porous bearings D. plain or sleeve bearings...