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Q6 (CAPF/2011) Geography › World Physical Geography › Atmospheric pressure winds Answer Verified

Which one among the following statements relating to a cyclone is not correct ?

Result
Your answer: —  Â·  Correct: C
Explanation

A cyclone is a large-scale wind circulation system characterized by a low-pressure center [c3, t9]. It typically brings sudden and drastic changes in weather conditions, including strong winds and heavy rainfall [c3]. In the Northern Hemisphere, the Coriolis effect deflects inward-moving winds to the right, resulting in a counter-clockwise rotation around the low-pressure center [c2, t1, t8]. Therefore, the statement claiming wind movement is clockwise in the Northern Hemisphere is incorrect; clockwise rotation occurs only in the Southern Hemisphere [t2, t5]. Additionally, tropical cyclones are known by various regional names: they are called 'hurricanes' in the Atlantic and Caribbean (including the West Indies), 'typhoons' in the Western Pacific, and 'cyclones' in the Indian Ocean region [t3, t5].

Sources

  1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 23: Pressure Systems and Wind System > Why Tropical Cyclones Do Not Form At The Equator? > p. 310
  2. [2] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 6: Pressure, Winds, Storms, and Cyclones > 6.6 Cyclone > p. 92
  3. [3] https://en.wikipedia.org/wiki/Cyclonic_rotation
  4. [4] https://www.aoml.noaa.gov/hrd-faq/
  5. [5] https://rmcnewdelhi.imd.gov.in/MET_CENTRES/MCLUCKNOW/Lmeteorology/faq_cyclone.pdf
  6. [6] https://www.khanacademy.org/science/7th-grade-science-matatag/xc20cf6e55eff89e5:4th-quarter/xc20cf6e55eff89e5:the-sun-and-the-earth-s-atmosphere/a/tropical-cyclones
  7. [7] https://www.aims.gov.au/docs/projectnet/cyclones.html
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SIMILAR QUESTIONS

NDA-I · 2010 · Q49 Relevance score: 3.51

Which of the following statements are correct? 1. In a cyclone, the area of low pressure is at the centre surrounded by the areas of high pressure. 2. In a cyclone, the areas of low pressure surround the area of high pressure. 3. In an anti-cyclone, the area of high pressure is surrounded by the areas of low pressure. 4. In an anti-cyclone, the area of low pressure is surrounded by the areas of high pressure. Select the correct answer using the code given below : Code :

NDA-II · 2010 · Q5 Relevance score: 3.33

Consider the following statements I. In a cyclone, the direction of wind flow is counter clockwise in the northern hemisphere II. The tropica] cyclone fades away when it reaches land because there is no large supply of warm moist air Which of the statements given above is/are correct?

CAPF · 2015 · Q113 Relevance score: 3.15

Consider the following statements relating to cyclone, anti cyclone and trade wind : 1. The wind direction is clockwise in the cyclone of northern hemisphere 2. The planetary wind that blows from north-east to north-west is known as north-east trade wind 3. The wind direction is anti clockwisc in the anticyclone of southern hemisphere 4. Both westerlies and trade winds originate from sub-tropical highs Which of the statements given above is/are correct ?