Question # 1

Plaster of paris is obtained from

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Brochantite

Gypsum

Chalcanthite

None of these

Two alloys contain zinc and copper in the ratio of 2 : 1 and 4 : 1. In what ratio the two alloys should be added together to get as a new alloy having zinc and copper in the ratio of 3 : 1 ?

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7 : 5

5 : 7

3 : 5

None of these

Oldest satellite site is in:

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Kazakhstan

Russia

USA

None of these

The average of 7 numbers is 5. If the average of first six of these numbers is 4, the seventh number is

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14

12

11

15

The unit that coordinates different devices of the computer system is;

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A L U

Register

Control unit

Logical instruction

Number Series Test

1/10, 1/50, 1/250, ..................................

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1/1250

1/1150

1/1050

1/950

A cyclic quadrilateral whose opposite angles are equal, is a :

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parallelogram but not a rhombus

rhombus

rectangle

square but not a rectangle

The L.C.M. of 26, 56, 104 and 182 is

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546

1274

728

784

The input hexadecimal representation of 1110 is

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0111

E

15

14

The G.C.D. of 1.08, .36 and .9 is:

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.03

.9

.18

.108

Number Series Test

5/2, 7/2, 9/2, ...................................

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13/2

10/2

11/2

8/2

9999 + 8888 + 777 + ? = 19700

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36

16

64

26

The blue color of sky is due to

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Rayleigh scattering

Mile scattering

Sky saturation

None of these

Which of the following atmosphere layers help in radio communication?

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Exosphere

Lonosphere

Troposphere

Stratosphere

Number Series Test

1, 8, 27, ..................................

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63

64

67

107

The Order of the Rising Sun is highest Military Award of

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Russia

Japan

South Korea

None of these

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(a + b + c) = 180^o

2a = 2b = c

a + b = 180^o - c

a + b = c

ANTARA is the news agency of:

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Indonesia

Malaysia

Turkey

None of these

3/8 is what part of 1/12 ?

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3/7

1/12

4/3

None of these

If the difference between the measures of the two acute angles of a right triangle is 20^o, what is the measure, in degrees, of the smaller one ?

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20^o

35^o

45^o

55^o

The instrument which measure very high temperature is:

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Manometer

Thermostat

Chronometer

Pyrometer

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