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In a shaded pole motor the revolving field is produced by

A) winding B) capacitor

C) regulator D) shading ring

How the voltage is reduced in auto transformer starter at the time of starting ?

A) by adding resistance with rotor B) by reducing supply current

C) by using step down transformer D) by adjusting the tappings by handle

Maximum efficiency for a transformer can expect when
A) Hysterisis loss becomes equal to eddy current loss
B)

C) Variable loss becomes equal to stray loss

D) Eddy current loss becomes equal to copper loss

Copper loss becomes equal to constant loss

Which one is the application of Current Transformer (CT) ?
A) Tong tester B) Earth leakage circuit breaker
C) Auto transformer D) Variac

Synchronous motor when used for power factor improvement should be
A) loaded B) under excited
C) over excited D) running at no load

The following type is not a wattmeter.
A) electrostatic B) induction
C) electro mechanical D) dynamometer

Phase sequence of supply given to AC motor means the order of phase attaining
A) R. M.S value B) Maximum value
C) Average value D) Average inverse value

If the ceiling fan when switched on runs at slow speed in the reverse direction, it can
be concluded that

A) Winding has burnt out B) Bearing has worn out
C) Capacitors is not effective D) Shorted winding

In a wound three phase induction motor, brushes should be connected to
A) Equalizing coils B) External DC excitation
C) External connected resistors D) Stator power supply

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