Question # 1

The ozone layer protect the earth from rays sent by the sun

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Ultraviolet rays

Infrared rays

Gamma rays

Radio active rays

none of these

The ratio of the age of a man and his wife is 4 : 3. After 4 years, this ratio will be 9 : 7. If at the time of the marriage, the ratio was 5 : 3, then how many years ago they were married?

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12 Years

8 years

10 years

15 years

6(3-x)-5(2x-4)=4(3x-)+14 in the above equation the value of x is

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3

2

1

1/2

Which of the following microorganism is commonly known as pink bread mould.

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Neurospora

Aspergillus

Mucor

Rhizopus

Simplify: (1/64)⁰ + (64)^-1/2 + (-32)^4/5

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17 1/8

17 3/8

11 17/8

17 11/8

0.7683 + 0.369 + 0.05 + 0.8 = ?

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0.8065

1.9873

0.8110

None of these

A very important practical application of properties of matter is hoeing or "godi" practiced by the farmers, This property of matter is called:

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Elasticity

Stress

Capillarity

Strain

The chemical name of quartz is:

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Silicon dioxide

Stannous oxide

Aluminium oxide

None of these

The major cause of land pollution is :

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Pesticides

Chemical fertilizers

Insecticides

All of these

Simplify: 3/10 + 3/7 of (2 3/10 + 2 3/5) +1/5 + 1 2/5 - 2/7

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1

2

0

3

One of these scientist formulated basic laws of geometry:

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Pythagoras

Archimedes

Aristotle

None of these

Which of these does not contain a structural protein?

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Muscles

Tendons

Ovalbumin

Spider silk

When sound is reflected from floor,ceiling or a wall,it mixes with the original sound and change its complexion,it is called as

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Sound

Echo

Reverberation

Noise

What are cyclones?

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Sudden heavy floods

Heavy showers

Violent wind and rain

No rain for a long period

Find the cube root of 512/3375

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12/15

16/25

8/15

None of these

Find the square root of 4356

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68

64

66

None of these

Dacron is

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Polyethylene

Epoxy

Poly-amide

Non of these

Average energy value of carbohydrates in food is

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3 kcal/g

4 kcal / g

5 kcal /g

6 kcal /g

If a product is said to be sugar free it contains how much sugar?

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None

Less then 0.5 grams of sugar per serving

Less then 10.0 grams

Not more then 40 kcal per serving

Graphite is used in nuclear reactor as

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Fuel

Control rods

Moderator

Coolant

In an examination, 1100 boys and 900 girls appeared. 50% of the boys and 40% of the girls passed the examination. The percentage of candidates failed is:

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45

45.5

54.5

59.2

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