atmosphere & climatology section 8 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 1

Consider the following statements :

  1. Half the water vapour in the air in atmosphere lies below an altitude of 1000 m.
  2. The amount of precipitable water in the atmosphere increases from the equator to the poles.
Which of the statements given above is/are correct ?

a) 2 only

b) 1 only

c) Neither 1 nor 2

d) Both 1 and 2

Answer: (c)

Half of the water vapour in the air in atmosphere lies below an altitude of 2 kilometer and 90 per cent of water vapour lies below an altitude of 5 kilometer. Amount of precipitable water in atmosphere increases from the poles to the equator.

Question : 2 [PSC (Pre) 2017]

Consider the following climatic and geographical phenomena.

  1. Condensation
  2. High temperature and humidity
  3. Orography
  4. Vertical wind
Thunder clouds development is due to which of these phenomena?

a) 2, 3 and 4

b) 1 and 2

c) 1, 2, 3 and 4

d) 1, 2 and 4

Answer: (d)

Question : 3 [PSC (Pre) 2016]

Humid heat is experienced in summer when the weather is

a) Keen

b) Raw

c) Muggy

d) Scorching

Answer: (c)

Question : 4

Consider the following statements and select the correct answer with the help of codes given below:
Assertion (A):
Hurricane cannot develop in the vicinity of equator.
Reason (R):
Coriolis force is maximum over the equator.

a) Both (A) and (R) are true, but (R) is not correct explanation of A.

b) Both (A) and (R) are true and (R) is the correct explanation of A.

c) (A) is false, but (R) is true.

d) (A) is true, but (R) is false.

Answer: (d)

Hurricanes are unable to form along the equator because of the zero Coriolis Effect at 0 latitude, which is the force required for the spinning motion of these violent storms.

One of the necessary environmental conditions for an atmospheric disturbance to become a full-blown hurricane is for the rough weather conditions to occur at least 300 miles away from the equator.

The Coriolis Effect, which increases from the equator to pole is the apparent force that tends to move rotating objects to the right.

Question : 5 [SSC CGL 2015]

The South-East trade winds are attracted towards the Indian subcontinent in the rainy season due to

a) the effect of easterlies

b) the development of cyclone over the equator

c) the presence of low atmospheric pressure over NorthWest India

d) the effect of Northern-East trade winds

Answer: (c)

During the Rainy Season in India (Mid-June to the end of September), the intense heat that prevails in the Indian subcontinent causes a low-pressure region over the Northern Plains in the Northwestern parts of the country. It is intense enough to attract the moisture-bearing winds from the Indian Ocean.

Thus, the south-east trade winds from the Southern Hemisphere are attracted towards India. On crossing the equator, they are deflected to their right and blow over the Indian subcontinent as the south-west monsoon winds.

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