Question # 1

The average age of 30 students of a class is 12 years. The average age of a group of 5 of the students is 10 years and that of another group of 5 of them is 14 years. What is the average age of the remaining students?

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8 years

10 years

12 years

14 years

What is jeweler's rouge?

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Ferric oxide

Ferrous oxide

Ferrous carbonate

Ferric carbonate

On simplification 1/0.04 is equal to:

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2.5

25

2/5

1/40

Cobalt is a material which is:

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Strongly attracted by a magnet

Not attracted by a magnet

Not a magnet

Weakly attracted by a magnet

The marks obtained by 10 students is Science are 30,41,40,41,30,28, 41,40. the model mark is

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40

30

41

35

If each bag of tokens weighs 5 3/4 lb, how many pounds do 3 bags weigh ?

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17 1/2 lb

17 1/4 lb

16 1/2 lb

15 3/4 lb

What power cycle is used in jet engines?

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Stirling

Rankine

Otto

Brayton

The electro-cardiograph was invented by

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B.F Goodrich

Gottlieb Daimler

Karl Benz

William Einthoven

In addition to their role in ozone depletion,CFCs play a role in global warming by

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Absorbing solar radiation

Blocking ultraviolet B radiation

Absorbing earth shine in the 10 micron region

Destroying ozone, which cools the earth

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

The L.C.M. of two numbers is 14 times their H.C.F. The sum of L.C.M. and H.C.F. is 600. If one number is 80, then the other is

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40

60

160

280

Two numbers are in the ratio 3 : 5. If each number is increased by 10, the ratio becomes 5 : 7. The numbers are

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15, 25

30, 45

48, 60

None of these

The instrument which measure very high temperature is:

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Manometer

Thermostat

Chronometer

Pyrometer

Study of the life in outer space is known as:

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Endobiology

Exobiology

Enterobiology

Neobiology

Who is known as the father of the atomic bomb?

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Albert einstein

J robert oppenheimer

General laslie groves

Edward teller

One of the countries through which equator passes is:

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Kenya

Pakistan

Malaysia

Malta

None of these

A man plants 15376 apple trees in his garden and arranges them so that there are as many rows as there are apple trees in the row, then the number of rows is:

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126

124

134

144

The unit that coordinate different device of the computer system is

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A L U

Register

control unit

Logical instruction

Take p to be six time as large as q. The per cent that q is less than p is

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60

90

16 2/3

83 1/3

A boy was asked to multiply a given number by 8/17. Instead, the divided the given number by 8/17 and got the 225 more than what he should have got if he had multiplied the number by 8/17. The given number was

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8

17

64

136

Which of these does not contain a structural protein?

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Muscles

Tendons

Ovalbumin

Spider silk

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