Question # 1

A moderator is used in nuclear reactor in order to:

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Accelerate the neutrons

Slow down the speed of the neutrons

Increase the number of election

Decrease the number of electrons

One type of liquid contains 25% milk, the other contains 30% milk. A can is filled with 6 parts of the first liquid and 4 parts of the second liquid. Find the percentage of milk in the new mixture.

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20

21

25

27

Plants can be made disease resistant by:

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Heat treatment

Hormone treatment

Colchicines treatment

all of these

The name of the disease called lock-jaw is?

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Arthritis

Hypetropia

Tetanus

None of these

Which of the following is most elastic?

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Steel

Rubber

Glass

Sponge

The energy possessed by water in a dam is:

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electrical energy

kinetic energy

potential energy

mechanical energy

If r = -2, then r⁴ + 2r³ + 3r² + r = ?

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-8

-4

0

10

Geiger-Muller counter is used to detect:

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Protons

Neutrons

Photons

None of these

A person standing in front of a mirror finds his image smaller then him and erect. This implies that the mirror is:

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Plane

Concave

Convex

Note of good quality

How is a dengue fever is transmitted

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Bite of an infected mosquito

Bite of an infected male Aedes mosquito

Bite of an infected female Anopheles mosquito

Bite of an infected female Aedes mosquito

Eugenics is the study of:

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altering human beings by changing their genetics components

People of european region

Different races of mankind

Genetics of plant

Radio value was invented by

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Sir j a fleming

George eastman

William burroughs

Micheal faraday

The H.C.F. of 2923 and 3239 is:

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37

47

73

79

Margalla hills is a branch of;

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Karakorum

Hindu kush

Himaliya

Nanga parbat

Tides are generated by

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The movement of ships in the oceans

The gravitational effect of moon and sun on our earth

The movement of the earth around the sun

None of these

The densities of three liquids are D, 2D. 3D. What will be the density of the resulting mixture if equal volume of the three liquid are mixed?

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1.5D

2D

3D

6D

The laws of floating bodies was discoverd by

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Pierre Simon de Laplace

Archimedes

Edwin Hubble

Joseph J. Thomson

A Light year is

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A year devoid heavy rain fall

The time taken by light to be generated and propagated from the center of the sun to our earth

The distance covered by light of our solar years

None the these

If 168 × 54 = 9072, then .9072 ÷ 16.8 is equal to:

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5.4

.54

.054

.0054

How many four-digit numbers have only even digits ?

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96

128

256

500

625

What is the chance of diabetic baby born to parents both heterozygous normal?

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Zero

1/4

1/2

3/4

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