Secretariat Assistant : General Science questions and answers

General Science questions and answers

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1. Wood charcoal is used in gas masks because:

A. It is poisonous

B. It liquefies gas

C. It is porous

D. It adsorbs gases

Ans: D. It adsorbs gases

2. Candela is the measurment of:

A. Luminous intensity

B. Depth

C. Speed

D. Temperature

Ans: A. Luminous intensity

3. The scientist who first used a glass prism to obtain the spectrum of sunlight was:

A. Thomas Alva Edison

B. Issac Newton

C. Mark Ernst Rutherford

D. Johann Doppler

Ans: B. Issac Newton

4. The tissues mainly responsible for food storage and conduction of substances?

A. Schlerenchyma

B. Parenchyma

C. Collenchyma

D. None of these

Ans: B. Parenchyma

5. When a bottle of perfume is opened in one corner of a room the smell spreads throughout the room.This is an example of:

A. Surface tension

B. Transmission

C. Viscosity

D. Diffusion

Ans: D. Diffusion

6. The plant used in space vehicles to maintain the level of oxygen?

A. Chlorella

B. Azolla

C. Cactus

D. Porella

Ans: A. Chlorella

7. Ozone layer is important because:

A. It helps in photosynthesis

B. Prevents earth's radiation from escaping

C. Filters ultraviolet rays selectively

D. Blocks ultra violet rays completely

Ans: D. Blocks ultra violet rays completely

8. A sudden fall if mercury in barometer indicates:

A. Fair weather

B. Stormy weather

C. Cold weather

D. Hot weather

Ans: B. Stormy weather

9. Fathom is the unit of:

A. Sound

B. Depth

C. Distance

D. Frequency

Ans: B. Depth

10. Acetyl salicyclic acid is known as:

A. Oil of wintergreen

B. Salol

C. Aspirin

D. Picric acid

Ans: C. Aspirin

11. The same group elements are characterized by: 

A. Ionization potential

B. Electro negativity

C. Ionization energy

D. No.of electrons in the outer most shell

Ans: D. No.of electrons in the outer most shell

12. Which metal is known as fool's gold

A. Copper

B. Bronze

C. Pyrites

D. Aluminium

Ans: C. Pyrites

13. The process of fermentation was discovered by:

A. Luis Pasteur

B. Alexander Fleming

C. Edward Jenner

D. Rontgen

Ans: A. Luis Pasteur

14. Which of the following metals forms an amalgam with other metals?

A. Tin

B. Mercury

C. Led

D. None

Ans: B. Mercury

15. An acid used in preservation of food stuffs:

A. Tartaric acid

B. Citric acid

C. Acetic acid

D. Oxalic acid

Ans: C. Acetic acid

16. Hortus Malabaricus,a monumental work on Botany is the contribution of:

A. The Portuguese

B. The British

C. The Dutch

D. The French

Ans: C. The Dutch

17. A method of growing plants without soil:

A. Planting

B. Breeding

C. Hydroponics

D. Vegitation

Ans: C. Hydroponics

18. Two most important Harappan crops were

A. Sesamum and Mustard

B. Rice and Peas

C. Wheat and Barley

D. Cotton and sugarcane

Ans: C. Wheat and Barley

19. Plants growing in dry habitat are called: .......

A. Xerophytes

B. Lithophytes

C. Mesophytes

D. Crysophytes

Ans: A. Xerophytes

20. The loss of water in liquid from the leaves of plants is ...............

A. Transpiration

B. Guttation

C. Evaporation

D. Translocation

Ans: B. Guttation

21. Endemic plants are defined as the plants growing in:

A. Tissue of other plants

B. Shady places

C. Fresh water lakes

D. Geographically limited areas

Ans: D. Geographically limited areas

22. The plant community that grow in a marshy saline habitat are called

A. Xerophytes

B. Hydrophytes

C. Mesophytes

D. Mangroves

Ans: D. Mangroves

23. The ecologically odd one among the plants listed

A. Euphorbia

B. Aloe

C. Acacia

D. Rhizophora

Ans: D. Rhizophora

24. A symbolic association where both the plants benefited and neither can survive without the other is called

A. Mutualism

B. Commensalism

C. Parasitism

D. None of these

Ans: A. Mutualism

25. The bacteria found in the root nodules of leguminous plants are:

A. Clostridium

B. Azotobacter

C. Nitrobacter

D. Rhizobium

Ans: D. Rhizobium

26. Which is the tree generally grown for forestation?
A. Mango tree
B. Coconut tree
C. Banyan tree
D. Teak
Ans : D. Teak

27. The 'Ring spot virus' is the most destructive disease of:
A. Papaya
B. Banana
C. Mango
D. Coffee
Ans : A. Papaya

28. A viral disease of banana:
A. Bunchy top
B. Panama wilts
C. Sigatoka
D. Spindle leaf minor
Ans : A. Bunchy top

29. Name the process by which plants prepare their food.
A. Osmosis
B. Photosynthesis
C. Fluorescence
D. Transpiration
Ans : B. Photosynthesis

30. Which plant is known as queen of western ghats?
A. Jamanthi
B. Kutti mulla
C. Orchid
D. Neela kurinji
Ans : D. Neela kurinji

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Secretariat Assistant : General Science questions and answers