Class 8 Coal And Petroleum CBSE Questions & Answers

Class 8 · Coal And Petroleum

This is Science Class 8 Coal and Petroleum CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Discovery and development of oil and gas resources which lie underwater is called :
  • A
    offshore drilling
    Correct
  • B
    underwater drilling
  • C
    submerged drilling
  • D
    onshore drilling
2
Read the following statements :i) Asphalt is not used for making roads.ii)Paraffin wax is used to make shoe polish.
  • A
    statement i) is correct but ii) is wrong
  • B
    both are wrong
  • C
    statement ii) is correct but i) is wrong
    Correct
  • D
    both are correct
3
The vehicle shown in image is fitted with cylinder of :
Question 3 figure 1
  • A
    combined compressed natural gas
  • B
    liquefied under pressure natural gas
  • C
    compressed natural gas
    Correct
  • D
    compact natural gas
4
Read the following statements :i) Kerosene is used as an illuminant.ii)Carbon black is used for production of petroleum gas.
  • A
    statement ii) is correct but i) is wrong
  • B
    both are correct
  • C
    statement i) is correct but ii) is wrong
    Correct
  • D
    both are wrong
5
Coke is used for :
  • A
    refining of oil
  • B
    formation of coal
  • C
    fractional distillation of petroleum
  • D
    extraction of metals
    Correct
6
CNG is a smokeless and environment friendly fuel :i) On burning CNG produces carbon dioxide and water.ii)On burning CNG produces carbon dioxide, hydrogen and ash.
  • A
    statement i) is correct but ii) is wrong
    Correct
  • B
    statement ii) is correct but i) is wrong
  • C
    both are correct
  • D
    both are wrong
7
LPG finds its use as :
  • A
    a refrigerant
    Correct
  • B
    biogas manufacturer
  • C
    rocket fuel
  • D
    all of these
8
Read the following statements :i) Natural gas can be used for manufacturing carbon black.ii)Carbon black is used in rubber industry as strengthening agent.
  • A
    both are correct
    Correct
  • B
    statement ii) is correct but i) is wrong
  • C
    both are wrong
  • D
    statement i) is correct but ii) is wrong
9
Petroleum is also known as :
  • A
    noble liquid
  • B
    black gold
    Correct
  • C
    black diamond
  • D
    inert substance
10
Natural gas can be used for obtaining _____ on industrial scale :
  • A
    methane
  • B
    oxygen
  • C
    petrol
  • D
    hydrogen
    Correct
11
Nowadays, addition of lead tetraethyl to petrol engines is banned because :
  • A
    lead is expensive
  • B
    lead works as anti knock agent
  • C
    lead works as stimulating agent for engine
  • D
    lead is toxic
    Correct
12
The image is showing pellets used in rubber manufacture and is also used as a pigment , it is :
Question 12 figure 1
  • A
    Carbon black
    Correct
  • B
    bitumen pellets
  • C
    Coal pellets
  • D
    anthracite pellets
13
Read the following statements :i) Petroleum fractions include fuel as well as non fuel products.ii) Crude oil itself can be used for many useful purposes.
  • A
    statement ii) is correct but i) is wrong
  • B
    both are correct
  • C
    statement i) is correct but ii) is wrong
    Correct
  • D
    both are wrong
14
Excessive use of coal & petroleum may lead to :
  • A
    greenhouse effect
  • B
    all of these
    Correct
  • C
    acid rain
  • D
    energy crisis
15
Read the following statements :i) Petroleum occurs above natural gas in earth
  • A
    statement ii) is correct but i) is wrong
  • B
    statement i) is correct but ii) is wrong
  • C
    both are wrong
    Correct
  • D
    both are correct