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GeographyEasyAsked in: Rajasthan · RSMSSB PTI Physical Education 2018 Offic

Which of the following winds are also known as 'Roaring Forties'?

  1. A.Easterlies Winds
  2. B.Westerlies Winds
  3. C.Trade Winds
  4. D.Doldrums

Correct answer

B. Westerlies Winds

Explanation

The correct answer is B, Westerlies Winds. The westerlies blow from the subtropical high pressure belt towards the subpolar low, which makes them south-westerly in the northern hemisphere and north-westerly in the southern. Between 40 and 50 degrees south there is almost no land to slow them down, so over the Southern Ocean they blow strong and steady all year and sailors named them the Roaring Forties. Further south they are called the Furious Fifties and the Shrieking Sixties. Option A is wrong because the polar easterlies are cold, dry winds that move from the polar high towards the sixty degree latitudes. Option C is wrong because the trade winds blow from the subtropical highs towards the equator, north-easterly above the equator and south-easterly below it, and once carried sailing ships on their trade routes. Option D is wrong because the doldrums is not a wind at all but the belt of calm near the equator along the inter-tropical convergence zone. Exam tip: forties roar, fifties are furious, sixties shriek, and all three are westerlies.

Practice Questions

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Q2.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following statements is/are correct? 1. Himalayan rivers have their origin in the snow-covered areas, hence are dry in winter season. 2. Rivers of the Peninsular Plateau have reached maturity. 3. Himalayan rivers depict all the three stages of normal cycle of erosion. Select the correct answer using the code given below.

  1. A.2 only
  2. B.1 and 3 only
  3. C.2 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: C. 2 and 3 only

Himalayan rivers are perennial, so statement 1 is wrong, while statements 2 and 3 are correct. Himalayan rivers such as the Ganga, Indus and Brahmaputra rise from glaciers and snowfields and also get monsoon rain, so they flow all year round, including in winter.

Q3.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following statements related to latitude are true? 1. Rainfall, temperature and vegetation vary with latitude. 2. The difference between the longest day and the shortest day increases with latitude. 3. Indira Point is located approximately at 6°45' N latitude. Select the correct answer using the code given below.

  1. A.1 and 2 only
  2. B.1 and 3 only
  3. C.2 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: D. 1, 2 and 3

All three statements about latitude are true. Latitude decides how directly the Sun's rays strike a place, so temperature, rainfall and the type of vegetation change from the equator towards the poles, from hot, wet rainforests to cold tundra.

Q4.GeographyAsked in: CDS · CDS-II 2017, GKMedium

Which of the following lakes is/are situated in Ladakh? 1. Tso Kar 2. Pangong Tso 3. Tsomgo 4. Tso Moriri Select the correct answer using the code given below.

  1. A.1 only
  2. B.2 and 3
  3. C.1, 2 and 4
  4. D.2 and 4 only
Show answer
Correct answer: C. 1, 2 and 4

Tso Kar, Pangong Tso and Tso Moriri are high-altitude lakes of Ladakh, while Tsomgo lies in Sikkim. Pangong Tso, at about 4,350 metres, is a long, narrow lake that stretches from Ladakh into Tibet, and most of its length lies on the Chinese side.