Question # 1

Eight bits combine to form:

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A byte

Megabyte

Kilobyte

Gigabyte

Which device is used to increases / decreases A.C Voltage?

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Electric motor

Transformer

A.C Generator

Solenoid

In electric motor, the brushes are made of:

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Lead

Graphite

Iron

Wood

In NOT gate number of input terminals is/are:

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1

2

3

4

When an electric current passes through a conductor, which field is produced around it?

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Electric field

Magnetic field

Gravitational field

Electrostatic field

In D.C.motor split rings are made of:

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Steel

Carbon

Copper

Iron

The refracted light striking to the side of prism is called:

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Refracted ray

Incident ray

Reflected ray

Emergent ray

The minimum value of angle of deviation is called:

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Minimum angle

Incident angle

Angle of minimum deviation

None of these

The value of refractive index of water is:

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2.33

1.36

1.33

1.39

The true ratio of a transformer is 10. It means:

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Vs = 10Vp

Ns = Np/10

Ns = 10NP

VS= Vp/10

The refractive index of ice is:

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1.00

1.33

1.31

2.42

If the current in a wire which is placed perpendicular to a magnetic field increases, the force on the wire.

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Increases

Decreases

Remains the same

Will be zero

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