Question # 1

Which one of the following is a non-metallic mineral?

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Manganese

Magnesium

Gypsum

Bauxite

Which among the following substances is used as a lubricant?

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Quartz

Silica

Graphic

Nickel

The value of (25.732)² - (15.732)² is:

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414.64

41.464

4146.4

4.1464

What is the sum of all the numbers less than 50 that are in the region labeled y ?

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24

37

47

84

108

The largest number of five digits which is a perfect squae is

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97344

98596

99856

None of these

Artificial selection was practiced by the

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arabs

chinese

romans

none of these

The position of earth in its orbit.when it is at its greatest distance from the sun causing northern summer is called

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Aphelion

Perihelion

Perigee

Apogee

The average income of A for 15 days is Rs. 70. The average for first five days is Rs. 60 and that for the last nine days is Rs. 80. The income for the sixth day is

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Rs. 80

Rs. 60

Rs. 40

Rs. 30

The average of two numbers is 62. If 2 is added to the smaller number, the ratio between the numbers becomes 1 : 2. The smaller number is

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60

30

84

40

Find the square root of 4356

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68

64

66

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

Which of the following fractions is less than 7/8 and greater than 1/3 ?

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1/4

23/24

11/12

17/24

The sky is blue because of

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Rayleigh scattering

Reflections

Mie scattering

Absorption

Refraction

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

Find the least number which when multiplied with 74088 will make it a perfect square.

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42

44

46

48

The blood glucose level is raised by the following except:

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Carbohydrates

cholesterol

insulin

epinephrine

The nuclear reaction was invented by

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Enrico Ferni

Eduard jenner

Alexander fleming

Albert einstein torricelli

If √2ⁿ = 64, then find the value of n

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8

10

12

16

What per cent is 3% of 5% ?

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60%

50%

15%

30%

The major cause of land pollution is :

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Pesticides

Chemical fertilizers

Insecticides

All of these

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

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