SCIENCE QUIZ FOR SSC CGL EXAM SET 12

Science quiz for SSC CGL exam

SCIENCE QUIZ FOR SSC CGL EXAM
 
1. Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect?
A.It converts the waste into solid, liquis and gas of which the resultant liquid and gas can be used to produce energy
B.The process occurs a a temperature above 430 degree Celsius at atmospheric pressure
C.The process occurs under high pressure at temperature above 430 degree Celsius
D.It is a thermochemical decomposition of organic waste

2. Which of the following supports particle nature of photons?
A.Diffraction
B.Polarization
C.Photoelectric effect
D.Interference

3. The heaviest naturally occuring element is:
A.Mercury
B.Polonium
C.Thorium
D.Uranium

4. Haptens are-
A.Psaeudoantigens
B.Incomplete antigens
C.Antibodies
D.Isoantigens

5. Gypsum is used for improvement of-
A.Alkaline soils
B.Saline soils
C.Podsols
D.Acidic soils

6. Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength.
A.Microwave, Infrared, Visible, X-rays
B.X- rays, visible, Infrared, Microwave
C.Visible, Infrared, Microwave. X-rays
D.X- rays, Infrared, Visible, Microwave

7. The rapidly growing mass of phytoplankton covering the surface water of lake or pond is known as-
A.Eutrophication
B.Water bloom
C.Water pollution
D.Water hyacinth

8. Exobiology deals with the study of
A.external characters of living organisms
B.life on the surface of the earth
C.life in the outer layers of atmosphere
D.life in other planets and space

9. Animals do not have enzyme systems which enable them to make use of the enrgy from-
A.fat
B.water
C.protein
D.carbohydrate

10. A clone is a colony of-
A.cells having different shapes
B.cells having similar shape
C.cells having similar genetic constitution
D.cells having different genetic constitution

11. The pollen grains of flowers pollinated by insects are-
A.smooth and dry
B.rough and sticky
C.rough and dry
D.large and showy

12. Which one of the following substances is used for preservation of food grains?
A.Sodium bezoate
B.Vinegar
C.Sodium Chloride
D.Potassium permanganate

13. The disease caused by Asbestos is-
A.Emphysema
B.Paralysis
C.Diarrhoea
D.Dysentery

14. In the eye, colour vision is effected by the presence of-
A.Choroid coat
B.Sclerotic coat
C.Rods
D.Cones

15. The splitting of different colours of light in a prism is-
A.Reflection of light
B.Dispersion of Light
C.Diffraction of light
D.Refraction of light

16. Where are most of the earth’s active volcanoes concentrated-
A.Europe
B.Pacific Ocean
C.Africa
D.South America

17. The deflection of the winds to the right in the northern hemisphere is caused by-
A.revolution of earth
B.rotation of earth
C.uneven heating of the earth
D.All of the above

18. Which of the folloing is not one of the important steps in processing tea leaves?
A.Rolling
B.Drying
C.Fermenting
D.Withering

19. In the nuclear reactors, moderators are used to-
A.Accelerate neutrons
B.Absord the neutrons
C.Slow down the neutrons
D.Generate neutrons

20. Wings of Birds are-
A.Modified hind limbs
B.New structure
C.Integumentary outgrowth
D.Modified fore limbs