Question # 1

Which element is used to make LED?

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Aluminum

Calcium

sodium

Arsenic

Phosphorous.... and sulphur 35 are employed on living system to trace metabolic path.

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31

30

38

32

Pakistan made atomic explosion on:

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May 28,1996

May 28,1998

May 28, 1999

may 28, 2000

The instrument that measures current is called.

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Voltmeter

Circuit breaker

Ammeter

Switch

Skylab enters back into atmosphere.

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In 1979

In 1990

In 2000

In 2003

Which of the following is used as fuel in Rocket:

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liquid gas

liquid carbon dioxide

liquid ammonia

Ll of the above

The name of Pakistan's first artifcial satellite is.

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Badar - 1

Rahbar

Sputink -1

Skun

Laser is used toproduce three -Dimensional image called.

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Holograms

Holography

Lithotropsy

Radioactive elements

The working principle of transformer:

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Electromagnetic conduction

Electrostatic induction

Electric charge

Neutralization

The number of hydrogen isotopes;

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3

2

8

10

The device used for turning a circuit ON or OFF is.

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Switch

Fuse

Circuit breaker

Earth wire

In 1989 "SUPARCO" establshed an earth station at.

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America

London

Rawat

England

Who was the inventor of radio system.

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Grahm bell

F. Crick

Charles babbage

Marconi

The conversion of the kinetic energy of running water to electrical energy is called

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power production

Thermal power

Hydroelectric power

Nuclear power

Which of the following is a brain of computer?

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Central processing unit

Mouse

Monitor

Hard disc

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

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Two

Three

Four

Five

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