Related Questions

A small square region inside a larger square is shaded. The diagonal of the larger square is three times the diagonal of the small square in length. What fraction of the area of the larger square is not shaded?
A 1/9
B 1/3
C 2/3
D 8/9
Radius of circle center 0 is 3 times the radius of circle center C. Angle ACB -A angle POQ. If the shaded are of circle C is 2 then what is the area of then shaded part of circleO?
A 36
B 9
C 12
D 18
A shaded pole motor does not possess
A centrifugal switch
B capacitor
C commutator
D all of the above
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
The shaded pole motor is used for
A high starting torque
B low starting torque
C medium starting torque
D very high starting torque
In a shaded pole single-phase motor, the revolving field is produced by the use of
A inductor
B capacitor
C resistor
D shading coils
A shaded pole motor can be used for
A toys
B hair dryers
C circulators
D any of the above
Locked rotor current of a shaded pole motor is
A equal to full load current
B less than full load current
C slightly more than full load current
D several times the full load current
There are 23 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole. How much more time will it take to reach the last pole?
A 40 seconds
B 44 seconds
C 48 seconds
D 46 seconds
The torque produced in induction type relay (shaded pole structure) is
A inversely proportional to the current
B inversely proportional to the square of the current
C proportional to the current
D proportional to square of the current

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