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

Cell theory was proposed by

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Beadle and Tatum

Robert Hook

Schwann and Schleiden

Antony van Leeuwenhoek

The minimum number of bits required to store hexadecimal number AF is

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2

4

8

16

Monsoon is caused by:

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Seasonal reversal of winds

revolution of earth

Movement of cloud

Rise in temperature

The number of satellite orbiting around the planet mars is

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1

2

5

14

The income of a company increases 20% per annum. If its income is Rs. 26,64,000 in the year 1999 what was its income in the year 1997 ?

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Rs. 17,50,000

Rs. 16,50,000

Rs. 18,50,000

None of these

In normal adult human , what is the rate of heartbeat per minute?

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72-80

70-75

80-97

82-87

Principal sugar present in milk is

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Maltose

Lactose

Lactic

Glucose

Which of the following numbers is divisible by 4 ?

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67920594

618703572

618703573

Which one of the following is the largest terrestrial wild animal

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South Asian elephant

African elephant

Giraffe

White tiger

Myopia is a defect of human eye. it can be corrected by using a lens called:

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Convex lens

Concave lens

Cylindrical lens

Plano convex lens

A man completes 2/15 of his journey by aeroplane, 2/5 by train and the rest by taxi. What part of his journey does he complete by taxi ?

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8/15

7/15

9/15

None of these

The average of 50 numbers is 38. If two numbers 45 and 55 are discarded, the average of the remaining set of numbers is

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38.5

37.5

37.0

36.5

What is the sum of all prime numbers from 60 to 80 ?

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361

341

351

349

Which of the following is responisible for tranporting oxygen in the blood?

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White blood cells

Neutrophil

Red blood cells

None of these

The H.C.F. of 2² x 3³ x 5⁵, 2³ x 2³ x 5² x 7 and 2⁴ x 3⁴ x 5 x 7² x 11 is

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2² x 3² x 5 x 7 x 11

2⁴ x 3⁴ x 5⁵

2⁴ x 3⁴ x 5⁵ x 7 x 11

2² x 3² x 5

3/8 is what part of 1/12 ?

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3/7

1/12

4/3

None of these

There are 100 people on a line. Aviva is the 37th Person and Naomi is the 67th person. If a person on line is chosen at random, what is the probability that the person is standing between Aviva and Naomi ?

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1/100

29/100

3/10

31/100

1/2

White blood cells fight infections from

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Bacteria

Viruses

Fungi

All of these

What is the smallest number which when increased by 3 is divisible by 16, 24, 30 and 32 ?

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480

475

472

477

Sea divers use a mixture of gases for breathing during diving.The mixture is:

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80%He&20%O2

80%N2&20%O2

205O2&40%N240%CO2

50%HE % 50%O2

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