Extra 40 MCQ questions and answers from the chapter:3 "Coal and Petroleum" for Class 8 Science (CBSE):-
Which of the following is a fossil fuel?
a) Wood
b) Coal
c) Biogas
d) All of these
Ans:
b) Coal
Which of the following is a non-renewable resource?
a) Sunlight
b) Air
c) Coal
d) Water
Ans:
c) Coal
Coal is formed from the remains of?
a) Dinosaurs
b) Dead plants
c) Dead animals
d) Marine organisms
Ans:
b) Dead plants
The slow process of conversion of dead vegetation into coal is called?
a) Carbonization
b) Fossilization
c) Decomposition
d) Evaporation
Ans:
a) Carbonization
Which of the following is not obtained from coal?
a) Coke
b) Petroleum
c) Coal gas
d) Coal tar
Ans:
b) Petroleum
Which product of coal is used for making roads?
a) Coke
b) Coal tar
c) Coal gas
d) None of these
Ans:
b) Coal tar
Which of the following is the purest form of carbon?
a) Coal tar
b) Coke
c) Coal gas
d) Petroleum
Ans:
b) Coke
Which of the following fuels is the cleanest?
a) Coal
b) Diesel
c) Natural gas
d) Wood
Ans:
c) Natural gas
What is petroleum commonly known as?
a) Crude oil
b) Black gold
c) Liquid coal
d) Fuel oil
Ans:
b) Black gold
Which gas is a major component of natural gas?
a) Oxygen
b) Methane
c) Carbon dioxide
d) Nitrogen
Ans:
b) Methane
Which product is obtained from petroleum and used in dry cleaning?
a) Kerosene
b) Diesel
c) Petrol
d) Petrol and Diesel
Ans:
c) Petrol
Which of the following is used for the extraction of metals?
a) Coal tar
b) Coal gas
c) Coke
d) None of these
Ans:
c) Coke
Which fraction of petroleum is used as a fuel in jet engines?
a) Petrol
b) Diesel
c) Kerosene
d) Lubricating oil
Ans:
c) Kerosene
Which fuel is used in thermal power plants to produce electricity?
a) Petrol
b) Coal
c) Diesel
d) Kerosene
Ans:
b) Coal
Natural gas is transported through?
a) Pipelines
b) Trucks
c) Ships
d) All of these
Ans:
a) Pipelines
Which of the following is used in the manufacture of synthetic
fibers
?
a) Petrol
b) Coal tar
c) Natural gas
d) Coke
Ans:
b) Coal tar
LPG stands for?
a) Liquefied Petroleum Gas
b) Low Pressure Gas
c) Light Petroleum Gas
d) Liquid Petrol Gas
Ans:
a) Liquefied Petroleum Gas
Which of the following is used in making waterproof paints?
a) Coke
b) Coal tar
c) Petroleum
d) Kerosene
Ans:
b) Coal tar
Which fuel is used in CNG vehicles?
a) Compressed Natural Gas
b) Coal Natural Gas
c) Compressed Nitrogen Gas
d) Clean Natural Gas
Ans:
a) Compressed Natural Gas
What is the main advantage of using CNG over petrol and diesel?
a) It is more expensive
b) It is more polluting
c) It causes less pollution
d) It is difficult to store
Ans:
c) It causes less pollution
What are fossil fuels?
a) Renewable energy sources
b) Fuels formed from dead plants and animals over millions of years
c) Naturally occurring metals
d) Man-made fuels
Ans:
b) Fuels formed from dead plants and animals over millions of years
Which of the following is a major environmental problem caused by fossil fuels?
a) Air pollution
b) Water pollution
c) Soil erosion
d) None of these
Ans:
a) Air pollution
Which of the following is not a fossil fuel?
a) Coal
b) Petroleum
c) CNG
d) Biogas
Ans:
d) Biogas
The process of separating different components of petroleum is called?
a) Sedimentation
b) Fractional distillation
c) Filtration
d) Sublimation
Ans:
b) Fractional distillation
Which of the following energy sources is renewable?
a) Coal
b) Wind
c) Petrol
d) Natural gas
Ans:
b) Wind
What is the main disadvantage of using fossil fuels?
a) They are expensive
b) They are non-renewable and cause pollution
c) They are unlimited in supply
d) They are easy to extract
Ans:
b) They are non-renewable and cause pollution
How can we conserve fossil fuels?
a) Using bicycles or public transport
b) Using alternative energy sources
c) Switching off vehicles at traffic signals
d) All of these
Ans:
d) All of these
Which fuel is considered the cleanest among fossil fuels?
a) Petrol
b) Diesel
c) Natural gas
d) Coal
Ans:
c) Natural gas
What is the main reason for the depletion of fossil fuels?
a) Overuse by humans
b) Natural disasters
c) Formation of new fuel sources
d) None of these
Ans:
a) Overuse by humans
What should we do to reduce air pollution caused by fossil fuels?
a) Use electric vehicles
b) Use solar and wind energy
c) Reduce unnecessary fuel consumption
d) All of these
Ans:
d) All of these
Which of the following is not a fossil fuel?
a) Coal
b) Petroleum
c) Biomass
d) Natural gas
Ans:
c) Biomass
Which gas is released when coal is burned?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
Ans:
b) Carbon dioxide
33. What is the main component of coal?
a) Hydrogen
b) Carbon
c) Nitrogen
d) Oxygen
Ans: b) Carbon
34. The process of burning fossil fuels releases which harmful gas that contributes to global warming?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Helium
Ans: c) Carbon dioxide
35. Which fuel is used for running automobiles?
a) Petrol
b) Kerosene
c) Bitumen
d) Coke
Ans: a) Petrol
36. Which of the following is a better domestic fuel?
a) Wood
b) LPG
c) Kerosene
d) Coal
Ans: b) LPG
37. How is coal formed?
a) By compression of dead vegetation over millions of years
b) By volcanic eruptions
c) By deposition of sand and rocks
d) By artificial methods
Ans: a) By compression of dead vegetation over millions of years
38. What is the full form of CNG?
a) Clean Natural Gas
b) Compressed Natural Gas
c) Condensed Natural Gas
d) Crude Natural Gas
Ans: b) Compressed Natural Gas
39. Which of the following fuels is used in rural areas for cooking?
a) Biogas
b) CNG
c) Diesel
d) Petrol
Ans: a) Biogas
40. What is the best way to manage fossil fuel consumption?
a) Use them as much as possible
b) Burn them in open fields
c) Use alternative energy sources like solar and wind
d) Avoid using any energy
Ans: c) Use alternative energy sources like solar and wind
