Question # 1

Which of the following is a brain of computer?

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Central processing unit

Mouse

Monitor

Hard disc

A device that decreases or increases the A.C voltage:

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Transformer

Ammeter

Voltmeter

Fuse

The major function of electronic devices is to amplify the ........ signals.

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Stronge electric

Semi strong electric

Both a and c

weak electric

How many electrons Guns are used in colour T.V?

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One

Two

Three

Four

The ability to do work is called.

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Power

Force

Energy

All of them

The energy of moving charges is called:

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Light energy

Heat energy

Chemical energy

Electrical energy

Word FAX is short form of.

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Facsiline

Facsimile

Fasimile

None of these

Which circuits carry currents to the lights heaters and other appliances:

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parallel circuits

series circuits

common circuits

All of the above

A,C electric supply at homes:

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240 volt

50 volt

220 volt

1000 volt

The number of hydrogen isotopes;

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3

2

8

10

The substances through which current can pass easily are called:

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conductors

insulators

Semi - conductors

Non - Electrolytes

The total production capacity of Pakistan's first nuclear power plant is.

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10 mega watt

137 mega watt

300 mega watt

40 mega watt

In Brazil, most of the vehicles run with:

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petrol

Bio gas

Alcohol

CNG

PINSTECH consists of...................... research reactors.

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Two

Three

Four

Five

The country, whihc launched its artificial satellite into space for the first time is

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America

France

Russia

Pakistan

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