Question # 1

in binary system. 37 is written as.

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101101

100101

110011

101011

Which disk consisting of metal plates for recording.

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Floopy

RAM

HARD

CD

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

Which of the following is a brain of computer?

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Central processing unit

Mouse

Monitor

Hard disc

Diodes are used to.

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Convert A.C. into D.C

Convert D.C into A.C

Store Charge

Change voltage

The speed of radio wave is:

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Light

Air

Sound

Rocket

English word "9" has been divided into ............ segments.

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5

6

7

8

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

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One

Two

Three

Four

analogue signal is recorded on.

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Magnetic tape

Floppy disk

Hard Disk

C.D

Word"Computer" is derive from.

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Machine

Calculator

Compute

All of these

Which of the following are electromagnetic waves:

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sound

water waves

Ultrasound

light

The number of hovering satellites which can send transmissions to all over the world:

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one

Two

Three

Four

The substances through which current can pass easily are called:

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conductors

insulators

Semi - conductors

Non - Electrolytes

The current flow from p-type semi conductors is due to.

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Free electrons

Valance electrons

Doping

Hole

Revolutionary charges have occur in last ............. years.

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30

40

50

60

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