Question # 1

What is the difference between the largest and the smallest fractions 5/8, 21/35, 9/16 and 6/7 ?

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33/112

11/37

13/41

9/35

Which refrigerant is commonly used in cold storage in our country

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Ethylene

carbide

Liquid ammonia

Sodium benzoate

A unit of length equal to the average distance between the earth and sun is called

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Light year

Astronomical unit

Parsec

None of these

Ice can be changed to water by:

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Adding more water molecule

Changing the motion of the water molecules

Rearranging the atoms in water molecules

None of these

An alloy contains copper and zinc in the ratio 7 : 3. If the alloy contains 10.5 kg zinc, then the quantity of copper in the alloy is:

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17.35 kg

24.5 kg

28.2 kg

31.5 kg

Important ingredient used in vicks vapor rub is obtained from the plant:

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Cinamomum camphora

Cinamomum zelamicum

Curaima longa

All of these

The areas of two square fields are 420.25 sq. m. and 441 sq. m., respectively. The ratio of their sides is

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221

441

41 42

442

Articles made of copper and bronze slowly tarnish in air and turn green ; the green color is due to the formation of :

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Copper oxide

Basic copper sulphide

Copper oxalate

All of these

Magnifying power of a simple microscope can be increased by:

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Increasing focal length of the lens:

Decreasing focal length of the lens

lens of a large aperture

lens of a short aperture

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

Find the greatest number of four digits which must be added to 5231 so that the final number becomes exactly divisible by 12, 15, 27, 32 and 40.

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7929

7829

9729

7729

The liver is supplied by two main blood vessels on it

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Gallbladder

Right lobe

Left lob

Caudate

In a certain college the number of girls is twice the number of boys. 1/5th of the girls and 1/8th of the boys took part in a social camp. What part of the total number of students took part in the camp ?

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7/40

718

2/12

1/24

It is impossible for a type of o+ baby to have a type of ............mother;

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A B+

O-

O+

None of these

Matter and Energy

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Can be converted from one to the other

When taken together converted in all processes in a closed system

Both A and B

None of these

Find the side of the largest square slabs which can be paved on the floor of a room 5 metres 44 cm long and 3 metres 74 cm broad.

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56

42

38

34

What power cycle is used in jet engines?

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Stirling

Rankine

Otto

Brayton

Orbital period of the planet Mercury around the sun is;

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88 days

365 days

2 years

98 days

LASER is an acronym for;

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Light amplification by standard emission of light

Light absorption stimulated entrance of radiation

Light amplification by stimulated emission of radiation

Light absorption bt standard emission of radiation

If 1/3 of the liquid contents of a can evaporates on the first day and 3/4 of the remainder evaporates on the second day, the fractional part of the original contents remaining at the close of the second day is

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4/7

1/2

1/6

7/12

He was the first scientist to prove that plant move around the sun:

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Archimedes

Galileo galilei

John Kepler

None of these

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