General Science #49 Multiple Choice Questions (MCQ) : Assam Jobs Guide

GENERAL SCIENCE #49

MULTIPLE CHOICE QUESTIONS

1. In which year was Orissa hit by a cyclone?

(a) 1999

(b) 2000

(c) 2001

(d) 2004

Answer: (a)

2. Leaves of trees, banner or flags flutter when wind is blowing. Why?

(a) Air occupies space

(b) Air is a mixture of gases

(c) Air exerts pressure

(d) Air is colourless

Answer: (c)

3. When we blow over a paper strip it goes upward. Why?

(a) Blowing over the paper reduces the air pressure above the strip

(b) Blowing over the paper increases the air pressure above the strip

(c) None of these is a correct reason

(d) The strip will not go upward at all

Answer: (a)

4. Following are precautions one must take in case a storm is accompanied by lightning.

(i) Do not take shelter under a tree.

(ii) Do not take shelter under an umbrella with a metallic end.

(iii) Do not take shelter in open garages, storage sheds, etc.

(iv) Do not take shelter in a bus in the open.

Which one of these is not correct?

(a) (i)

(b) (ii)

(c) (iii)

(d) (iv)

Answer: (d)

5. Which of the following places is most likely to be affected by a cyclone?

(a) Mumbai

(b) Puri

(c) Goa

(d) Porbandar

Answer: (b)

6. A fire alarm usually detects smoke in case of fire. Where should such an alarm be placed in a room?

(a) Near the door

(b) On the floor

(c) On any wall

(d) On the ceiling

Answer: (d)

7. The winds from oceans carry water and bring rain. These winds are called …………

(a) typhoon

(b) monsoon

(c) cyclone

(d) None of the above

Answer: (b)

8. What is a cyclone?

(a) Winds from the oceans carrying water

(b) Very low pressure system with very high speed winds revolving around it

(c) Dark funnel shaped cloud that reaches from the sky to the ground

(d) None of the above

Answer: (b)

9. Pick the odd one out.

(a) Cyclone

(b) Hurricane

(c) Monsoon

(d) Typhoon

Answer: (c)

10. A cyclone warning can be issued …………

(a) 48 hours in advance

(b) 12 hours in advance

(c) 6 hours in advance

(d) 24 hours in advance

Answer: (d)

11. Which one of the following is a step in the formation of soil?

(a) Earthquakes or volcanic eruptions

(b) Weathering of rocks

(c) Addition of humus

(d) All are involved in the formation of soil

Answer: (d)

12. In which horizon of soil minerals are found?

(a) A

(b) B

(c) C

(d) None of the above

Answer: (b)

13. Which physical property of soil is important to us?

(a) Texture

(b) Water holding capacity

(c) Both ‘a’ and ‘b’

(d) None of the above

Answer: (c)

14. Which of the following type of soil will form a colloidal solution when suspended in water?

(a) Clay

(b) Silt

(c) Sand

(d) Gravel

Answer: (a)

15. Which factor influences soil formation?

(a) Climate

(b) Vegetation

(c) Parent rock

(d) All of the above

Answer: (d)

16. The proportion of sand, silt and clay in a soil sample determines …………

(a) structure

(b) texture

(c) nutrient potential

(d) fertility level

Answer: (b)

17. The microorganisms present in the soil require moisture (water) and nutrients for growth and survival. Choose from the options below the habitat (place) where the soil has plenty of water and nutrients.

(a) Desert

(b) Forest

(c) Open field

(d) Cricket ground

Answer: (c)

18. Availability of water and minerals in the soil for maximum absorption by roots is in the …………

(a) B-horizon

(b) C-horizon

(c) A-horizon

(d) surface of soil

Answer: (c)

19. Soil conservation measures are mainly aimed at protecting which of the following?

(a) Plants

(b) Topsoil

(c) Sub soil

(d) Soil organisms

Answer: (b)

20. Read the following statements with reference to soil:

(i) Weathering is a very fast process of soil formation.

(ii) Percolation of water is faster in sandy soils.

(iii) Loamy soil contains only sand and clay.

(iv) Top soil contains the maximum amount of humus.

Choose the correct statements from the above.

(a) (ii) and (iv)

(b) (i) and (iii)

(c) (ii) and (iii)

(d) (i) and (ii)

Answer: (a)