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GeographyEasyAsked in: SSC MTS · 11 Oct 2021, Shift 1

Which of the following is a low grade brown coal that is soft with high moisture content?

  1. A.Bituminous
  2. B.Anthracite
  3. C.Peat
  4. D.Lignite

Correct answer

D. Lignite

Explanation

The correct answer is D, Lignite. Lignite is the low grade brown coal the question describes: it is soft, brown to blackish brown, and holds a high amount of moisture, often 35 to 45 per cent, so it gives less heat when it burns. Coal is graded by how much carbon it holds, and the order from lowest to highest is peat, lignite, bituminous and anthracite. India's main lignite field is at Neyveli in Tamil Nadu, with other deposits in Gujarat, Rajasthan and Jammu and Kashmir, and it is burnt mostly in power stations built right beside the mines because it crumbles and catches fire easily if carried far. A is wrong because bituminous is the common hard coal used in industry and for making coke. B is wrong because anthracite is the best grade, hard and with more than 80 per cent carbon. C is wrong because peat is the first stage, closer to wood than to coal. Exam tip: peat, lignite, bituminous, anthracite, with quality rising in that order.

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.