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)
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