Tag: evs

Questions Related to evs

Which of the following is renewable resource of fuel

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

  1. trees

  2. fossil fuel

  3. gas

  4. gasoline

Show answer
Correct Option: A
Explanation:

Trees are renewable resource of fuel as they can be planted new and can be recreated. So renewable natural resources are Trees. Hence, option A is correct.

Advantage of use of natural gas as fuel is:

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

  1. prevents respiratory problems

  2. causes less air pollution

  3. prevents over combustion

  4. prevents heart dieases

Show answer
Correct Option: B
Explanation:

Advantage of use of natural gas as fuel is that natural gas releases fewer pollutants which can decrease the pollution.


Hence option B is correct.

State whether true or false :

Coal reserves will last forever.

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

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Coal reserves may last for a few hundred years but at the present rate of consumption, the present coal reserves might run out of coal sooner than expected.


Hence the given statement is false.

Coal and petroleum are formed from the dead remains of organisms and are known as :

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

  1. fuels

  2. fossil fuels

  3. diesel

  4. None of these

Show answer
Correct Option: B
Explanation:

Coal and petroleum are formed from the dead remains of organisms and are known as fossil fuels.


Hence the correct option is B.

Excessive burning of fossil fuels is a major cause of  Global Warming.

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

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Excessive burning of fossil fuels is a major cause of "GLOBAL WARMING".

Explanation :
Carbon dioxide (CO2), which, while not  the most potent greenhouse gas, 

is nevertheless the main driver of the greenhouse effect. When fossil fuels - coal, oil and natural gas - are burnt they release CO2 into the atmosphere. Because of this, the layer of greenhouse gas is getting thicker, which is, in turn, making the Earth warmer. Thus the ongoing unlimited burning of fossil fuels is the cause of climate change and global warming.

Which fuel used in jet crafts?
evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

  1. Roseneke

  2. Keosener

  3. Kerosene

  4. Rosekene

Show answer
Correct Option: C
Explanation:

Kerosene on burning provides a large amount of energy and hence used as fuel in jet crafts.

What are the effects of natural resource depletion?

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

  1. reduce the quality of safe and accessible drinking water.

  2. introduces harmful toxins into waterways and the atmosphere.

  3. cause soil contamination.

  4. All of above.

Show answer
Correct Option: D
Explanation:

Depletion of natural resources like water, fuel-air and soil produces competition among living organisms for the remaining portions and diminishes the quality of available resources. Some of the human activities reduce the quality of drinking water. Overuse of fossil fuels reduces their availability and also introduces harmful toxins into the water and the atmosphere. Deforestation and agricultural activities exacerbate erosion and cause soil contamination, which impairs the survival capacity of plants, and makes surrounding areas prone to flooding and environmental disasters.

Which of the following is the main component of natural gas is

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

  1. Mehtane

  2. Propane

  3. Butane

  4. Pentane

Show answer
Correct Option: A
Explanation:

The main component of natural gas is methane $CH _4$ some other gases like butane ethane are also present.
Hence option A is correct.

Use of public transport system instead of private vehicles

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

  1. Increases pollution

  2. Decreases pollution

  3. Does not effect pollution

  4. None of the above

Show answer
Correct Option: B
Explanation:

Use of public transport system instead of private vehicles decreases the pollution as many people use only one vehicle which consume less fuel.It decreases the fuel consumption and pollution.
Hence option B is correct.

Which of the following is best to be used as fuel

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

  1. Oil

  2. Wood

  3. Coal

  4. Natural gas

Show answer
Correct Option: D
Explanation:

Natural gas is best to use as fuel because it produces less pollution and more efficiency.Less quantity is needed for more work.
Hence option D is correct.