Tag: conservation of fuels

Questions Related to conservation of fuels

______ are responsible for declining resources.

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. Unlimited use of resources

  2. Wastage of resources

  3. Both a and b

  4. None of these

Show answer
Correct Option: C

If materials (resources) are finished, then people will struggle for ________ for energy.

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. coal

  2. petroleulm

  3. both a and b

  4. None of these

Show answer
Correct Option: C
Explanation:
Coal, petroleum, and natural gas are considered nonrenewable because they can not be replenished in a short period of time. 

These are called fossil fuels.

A non-renewable resource (also called a finite resource) is a resource that does not renew itself at a sufficient rate for sustainable economic extraction in meaningful human time-frames.

Hence the option C is correct.

Which of the following is a false statement?

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. To overcome the energy crisis the use of solar cooker must be increased.

  2. To overcome the energy crisis more amount of non-renewable sources of energy must be used.

  3. The re-usage of waste material as a source of energy can be done to overcome the energy crisis.

  4. To overcome the energy crisis water has to be saved.

Show answer
Correct Option: B
Explanation:

To overcome the energy crises more amount of renewable sources of energy must be used because renewable sources of energy can be used again and again and solar energy is a renewable source of energy.


So, option B is not correct. 

An example of fossil fuel is?

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

  1. Coal gas

  2. Coke

  3. Natural gas

  4. Producer gas

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Correct Option: A,C
Explanation:

A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms is called fossil fuel gas, thus natural gas and goal gas is fossil fuel.

In which of the following products are obtained from fossil fuels?

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

  1. Coal

  2. Coke

  3. Coal tar

  4. Coal gas

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Correct Option: A,B,C,D
Explanation:

Products obtained from fossil fuels are

1. Coal
2. Coke
3. Coal tar
4. Coal gas

Fossil fuels are :

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

  1. Coal

  2. Biogas

  3. Natural gas

  4. Petroleum

Show answer
Correct Option: A,C,D
Explanation:
Fossil fuels are the decayed material which are obtained by the denaturation of organic wastes over a million years. 

Generally, fossil fuels are coal, natural gas and petroleum etc.

Hence options A, C and D are correct.

Which of the following is a fossil fuel?
I Tar
II Coal
III Petroleum

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

  1. I only

  2. I and II only

  3. II and III only

  4. I, II and III

Show answer
Correct Option: C
Explanation:

Coal and petroleum are fossil fuels. Tar is not a fossil fuel. 

A fossil fuel is obtained from the remains of organisms. It is a natural fuel.
Tar is a black mixture of hydrocarbons and free carbon. It is obtained from several organic compounds during destructive distillation. Tar can also be produced from wood, coal, petroleum or peat.

Fossils are mostly present in which of the following rocks?

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

  1. Igneous rocks

  2. Sedimentary rocks

  3. Metamorphic rocks

  4. Coarse-grained rocks

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Correct Option: B
Explanation:

Sedimentary rocks are made up of grains of sediment that have been weathered from a pre-existing rock or mineral. The grains can be big or small, they are often rounded, and are cemented together in a matrix. Sedimentary rocks may be layered and may also contain fossils.

Which of the following is an example of fossil fuel?

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

  1. Coal gas

  2. Coke

  3. Natural gas

  4. Producer gas

Show answer
Correct Option: C
Explanation:

Fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis. 

Natural gas is a mixture of gases which are rich in hydrocarbons. All these gases (methane, nitrogen, carbon dioxide etc) are naturally found in atmosphere. 
Natural gas reserves are deep inside the earth and is a fossil fuel. coal gas, coke and producer gas are the derivatives of coal, not naturally occurring.

Hence, option C is correct.

State true or false.


Coal gas, coke and producer gas are examples of fossil fuel.

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Coal gas, coke and producer gas are the byproducts of coal and are not fossil fuels, except natural gas which is a fossil fuel.