Question # 1

Ozone layer prevents the following radiation from entering the atmosphere;

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Infra-red

Ultraviolet

X-rays

Gamma rays

The H.C.F. and L.C.M. of two numbers are 44 and 264, respectively. If the first number is divided by 2, the quotient is 44. The other number is:

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33

66

132

264

1 litre of water weighs 1 kg. How many cubic millilitres of water will weigh 0.1 gm?

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0.1

1

10

100

The H.C.F of 1.75, 5.6 and 7 is:

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.07

.7

3.5

.35

0.7683 + 0.369 + 0.05 + 0.8 = ?

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0.8065

1.9873

0.8110

None of these

Bronze is an alloy of :

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Copper and Zinc

Tin and zinc

Copper and tin

Iron and zinc

The density of water is greatest at:

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32°C

0°C

4°C

100°C

The magnet always points in the same direction,if move freely i.e towards north and south poles because of:

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Gravitational field

A lot of metals deposits on north and south poles

Due to attraction of north pole and repulsion of Western pole

Earth is a huge magnet

The best coal suitable for the production of energy is

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Lignite

Bituminous

Anthracite

Peat

Richest source of iron is

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Mango

bale

Pomegranate

Dry karonda

Amaranth leaves are rich in

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Vitamin A

Vitamin B

Vitamin C

Vitamin E

The value of (25.732)² - (15.732)² is:

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414.64

41.464

4146.4

4.1464

Which one of the following is a water soluble vitamin?

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Niacin

Ascorbic acid

trypsin

riboflavin

The time taken by the sun to revolve around the cancer of our galaxy is

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50 mn year

100 mn years

250 mn years

365 mn years

Who was the first scientist credited with pointing out that certain gases could cause a green house effect?

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Jhon Tyndall

Charles Darwin

Roger tory peterson

Stephen jay gould

Founder of modern astronomy was:

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Archimedes

William gilbert

Nicolas Copernicus

Michael faraday

Although the mass of a man on moon remains same as on the earth he will

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Be much happier there

Weight one six as much

Weight twice as much

None of these

Which of the following is labelled to as GOOD CHOLESTROL for humans

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High density lpoprotein

Low density lipoprotein

very low density lipoprotein

None of these

Proteins are made up of

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Polynucleotide

Polypeptide

Oxyacetylene

None of these

Vacuum tubes have been replaced by:

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Conductors

Diodes

Transistors

None of these

The H.C.F. of two numbers is 99 and their L.C.M. is 2772. The numbers are

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198, 297

198, 1386

297, 495

None of these

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