Question # 1

Which disk consisting of metal plates for recording.

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Floopy

RAM

HARD

CD

America setn two space probes in.

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1979

1920

1976

1957

We can save eenrgy.

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1- By increaisng personal vehicles.

2- By making vehicles of beavier bodies.

3- By not walking

4- By avoiding unnecessary of energy.

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

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Two

Three

Four

Five

The frequency of the carrier waver used of radio transmission:

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30 KHZ

40 KHZ

50 KHZ

60 KHZ

One thouseand watt power is called.

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One mega watt

One giga watt

One hector watt

One kilowatt

The rays which are liberated from metal due to collision of fast moving electrons:

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Alpha rays

Beta rays

Gamma rays

x - rays

Frequency of ultrasound is.

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Less than 20 Hz

20 KHz

30 KHz

More than 20 khn

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

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31

30

38

32

A device which does not allow current to pass through it overt a certain limit:

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Switch

circuit breaker

Resistor

Fuse

Voltmeter is used to.

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Measure current

Measure potential difference

Measure voltage

Both a and b

Which of the following is an input device:

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key board

printer

monitor

CPU

----------------- rays are used to detect the flaws and crocks of metal parts.

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a -rays

gama rays

beta rays

None of these

Word FAX is short form of.

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Facsiline

Facsimile

Fasimile

None of these

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 Si unit of power is;

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Joule

Ohm

Watt

Ampere

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