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7. GENERAL ASPECTS OF GENERAL SCIENCE IN 11 20

11.       Which of the following types is used by computed tomography employed for visualization of the internal structure of human body?

a)      S-rays

b)      Sound waves

c)       Magnetic resonance

d)      Radio isotopes

12.       By using which one of the following techniques, is DNA finger printer done?

a)      ELISA

b)      RIA

c)       Northern Blotting

d)      Southern Blotting

13.       The sun is visible a little before the actual sunrise because of which one of the following.
 
a)      Atmospheric reflection

b)      Atmospheric dispersion

c)       Atmospheric diffraction

d)      Atmospheric refraction.

14.       Rusting of iron is a / an

a)      Electrochemical process

b)      Photochemical process

c)       Electro analytical process

d)      All of the above

15.       For which one of the following is plan meter used?

a)      To know the surface aea on a map

b)      To know the distance on a map

c)       To know the direction on a map

d)      To know the height of places on a map

16.       Which one of the following is another name of RDX?

a)      Cyanohydrin

b)      Dextran

c)       Cyclohexane

d)      Cylonite

17.       Which one of the following is the first geostationary

a)      INSAT -1A

b)      APPLE

c)       ROHINI

d)      ARYA BHATTA

18.       Which one of the following is a programme that converts high level language tot machine language?

a)      Linker

b)      Assembler

c)       Interpreter

d)      Compiler

19.       Which one of the following is the secondary source of  light in a florescent  lamp?

a)      Neon gas

b)      Argon gas

c)       Mercury  vapour

d)      Fluorescent coating on the glass

20.   Consider the following statements is respect of a jet engine and a rocket

a)      A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space.

b)      A rocket carries its own supply of oxygen in the gas form and fuel.
Which of the statements given above is/are correct

a)      Only 1

b)      Only 2

c)       Both 1 and 2

d)      Neither 1 nor 2

Answers 

11. A
12. D
13. D
14. A
15. A
16. D
17 B
18. D
19. C
20. A