Question # 1

How many four-digit numbers have only even digits ?

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96

128

256

500

625

The principle used in radar is the same as that of sonar. in reader we use radio waves whereas in sonar we use

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Red waves

Infrared waves

Ultrasonic

Super sonic

None of these

The wages of 10 workers for a six day week is rs 1200. What are the one day wages of 4 workers?

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Rs 40

Rs 32

Rs 80

Rs 24

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

Channel Tunnel is an undersea rail tunnel linking:

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England and Ireland

England and France

France and Germany

None of these

The H.C.F. of two numbers is 12 and their difference is 12. The numbers are:

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66, 78

70, 82

94, 106

84, 96

Sensitive layer of the eye is:

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Chlorides

Sclerotic

Retina

Cornea

The nuclear reaction was invented by

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Enrico Ferni

Eduard jenner

Alexander fleming

Albert einstein torricelli

Which of the follwing are founded in the nucleus?

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Lysosomes

Chromosomes

Ribosomes

None of these

One of the countries through which equator is passes is:

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Kenya

Malaysia

Malta

Pakistan

In a railway track,two rails are joined end to end with a gap tin between them because:

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Steel can be saved

Accident due to contraction in winter can be avoided

Air gapes are necessary for bearing the weight of running train

Accidents due to expansion in summer can be avoided

The deepest plant on earth is:

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Trench

Mariana trench

Mangrove

Groove

The ozone layer protects the earth from rays sent by the sun:

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Ultraviolet rays

Infrared rays

Gamma rays

None of these

Which of the following does not vary predictable with the depth of the aquatic environment?

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Salinity

Temperature

Penetration by sunlight

None of these

There are four prime numbers written in ascending order. The product of the first three is 385 and that of the last three is 1001. Find the first number.

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5

7

11

17

Dwight Eisenhower was born on October 14, 1890 and died on March 28, 1969. What was his age, in years, at the time of his death ?

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77

78

79

80

81

This layer keep us not too hot in the summer and not too cold in the winter.Scientist call this the ........effect.

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Green house effect

Seasonal effect

Ocean effect

Lake effect

Which of the following group of plants can be used as indicators of SO pollution of air?

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Epiphytic lichens

Ferns

Liverworts

Hornworts

The uranium fuel used worldwide is mainly in the form of:

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U3O8

UO2

UF6

U metal

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

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414.64

41.464

4146.4

4.1464

A very important practical application of properties of matter is hoeing or "godi" practiced by the farmers, This property of matter is called:

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Elasticity

Stress

Capillarity

Strain

What is the L.C.M. of 25,30,35 and 40 ?

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3800

4200

4400

None of these

Chilies are rich source of

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Vitamin A

Vitamin B

Vitamin A and C

Vitamin E and D

In a class of 20 students in an examination in Mathematics 2 students scored 100 marks each, 3 got zero each and the average of the rest was 40. What is average of the whole class ?

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40 marks

35 marks

32 marks

45 marks

What is the only source of free alleles?

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Crossing over

Independent assortment

Mutation

Fertilization

Radioactivity was discovered by

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Karl landsteiner

Konrad lorenz

Henry bacquerel

Edward o wilson

Simplify: 1-[2-{5-(4-3-2)}]

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1

2

3

4

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