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VisionIAS - Online Self Test
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Questions for practice
1)

Which of the following is/are correct?

I. Weather systems are always associated with the motion of air masses.

II. An air mass is a large body of air with variable temperature and moisture characteristics.

III. Air masses acquire their characteristics in source regions.

Select the correct answer from the codes given below:

(a)Only I

(b)I and II

(c)I and III

(d)I, II and III

2)

With reference to Fronts, consider the following statements:

1. Two Air masses of different physical characteristics when converge, form the Fronts.
2. Cold front is created when the cold air mass moves under the warm air mass and lifts the warm air mass.
3. A warm front is the transition zone where a warm air mass starts replacing a cold air mass.

Which of the statements given above is/are correct?

(a)1 only

(b)2 and 3 only

(c)1 and 3 only

(d)1, 2 and 3

3)

Consider the following statements:

  1. The meandering jet streams are called Rossby Waves.
  2. In planetary atmospheres, Rossby waves are due to the variation in the Coriolis effect with latitude.

Which of the statements given above is/are correct?

(a)1 only

(b)2 only

(c)Both 1 and 2

(d)Neither 1 nor 2

4)

Consider the following statements:

1. The sub-tropical jet stream is produced by the earth’s rotation (Coriolis force) and temperature contrast between tropical and sub–tropical regions.
2. Sub-tropical jet streams cause summer rains in the North-Western region of India.

Which of the statements given above is/are correct?

(a)1 only

(b)2 only

(c)Both 1 and 2

(d)Neither 1 nor 2

5)

Consider the following statements:

  1. Jet streams are meandering narrow fast-blowing winds located in the upper troposphere.
  2. Western disturbance brings rain in north-western parts of India in the Summer Season.
  3. Westerly jet streams influence the Monsoon in India. 

Which of the statements given above is/are correct?

(a)1 only

(b)2 and 3 only

(c)1 and 3 only

(d)1, 2 and 3

6)

Consider the following statements:

1. Subtropical and Polar Jet Streams are permanent jet streams.

2. Tropical Easterly Jet or African Easterly Jet and Somali Jet are found during a specific period of a year.

Which of the statements given above is/are correct?

(a)1 only

(b)2 only

(c)Both 1 and 2

(d)Neither 1 nor 2

7)

Which of the following is/are impacted by climate change?
1. Polar Vortex
2. Jet Streams
3. Western Disturbance
Select the correct answer using the options given below:

(a)1 and 2 only

(b)2 and 3 only

(c)3 and 2 only

(d)1,2 and 3

8)

Consider the following statement about the Polar Vortex:

1. The polar vortex conditions are mainly formed during the polar winters(polar nights).

2. It is when the upper atmosphere vortex weakens after that we start experiencing the effects of the vortex.

Which of the statements given above is/are correct?

(a)Only 1

(b)Only 2

(c)Both 1 and 2

(d)Neither 1 nor 2

9)

What do you understand by air mass? Briefly explain the different types of air mass and their respective locations. (150 words/10 Marks)

10)

What is Polar Vortex? Explain its effects on weather patterns.(150 words/10 marks)



Answers
1) c
2) d
3) c
4) a
5) c
6) c
7) d
8) c