NSO Level 1- Science Olympiad (SOF) Class 8: Questions 138 - 140 of 1076

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Question number: 138

» Coal and Petroleum

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match the column I with column II and select the correct option from the codes given below;

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Asphalt

(i)

Power generation

(B)

Paraffin wax

(ii)

Dry cleaning fluid

(C)

CNG

(iii)

Matchsticks

(D)

Gasoline

(iv)

Making road

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iv)
  • (ii)
  • (i)
  • (iii)

b.

  • (i)
  • (iii)
  • (ii)
  • (iv)

c.

  • (iv)
  • (iii)
  • (i)
  • (ii)

d.

  • (iii)
  • (iv)
  • (i)
  • (ii)

Question number: 139

» Coal and Petroleum

Edit
MCQ▾

Question

One word answers are given for few statements. Mark the answer which is not correct.

Choices

Choice (4) Response

a.

Coal tar – obtained during the processing of coal to get coke.

b.

The slow chemical process of the conversion of wood into coal – Carbonisation.

c.

Conservation – not wasting the resources and also maintaining their quality.

d.

Resources which are once used up cannot be replaced n a reasonable period of time – Non-renewable resources.

Question number: 140

» Coal and Petroleum

Edit
MCQ▾

Question

Which of the following statements is not true about Natural gas?

Choices

Choice (4) Response

a.

CNG is supplied to homes and factories through pipes and directly used as a fuel

b.

Natural gas is stored under high pressure as compressed natural gas (CNG).

c.

CNG is used as a clean fuel for buses, cars and autorikshaws.

d.

Natural gas is a source of oxygen gas needed in fertilizer industry.

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