Tag: biofuels

Questions Related to biofuels

The earliest use of petroleum was in

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  1. Heating

  2. Furnace

  3. Medicine

  4. Production of gas

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Correct Option: C
Explanation:
The ancient use of petroleum traced back to medicinal purposes. It was used to treat camels by desert nomads, Roman emperor can be said to have treated his gout with petroleum while Persians and Sumatrans also believed that petroleum has commercial value. Petroleum as of now is most popularly used as fuel, it's products include fuel oils for heating and electricity. The refining of petroleum produces by-products which are further brought into use to obtain products for example gasoline. 
Hence, the correct answer is 'Medicine'.

Sea tides can be used as

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  1. Sufficient amount of sunlight stored

  2. A device to take sun bath

  3. An energy source

  4. All of the above

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Correct Option: C
Explanation:

Sea tides can be used as a source for generating electricity & in hydroelectric plants, the other options are incorrect and is not related to uses of sea tides.

So, the correct answer is 'An energy source'

Fossil fuels have been formed by a

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  1. Conventional process

  2. Natural process

  3. Non-conventional process

  4. All the above

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Correct Option: B
Explanation:

Fossil fuels are non renewable conventional energy resources found inside earth's crust, where they have been formed through heat and compression on forests and other organic matter buried underneath due to earthquakes, landslides etc.

Wood gas is used as

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  1. Fuel gas

  2. Source of alcohol

  3. Source of oil

  4. Source of ammonia

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Correct Option: A

Which of the following act as a by-product during biogas production of biodiesel?

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  1. Ethanol

  2. Glycerin

  3. Glycerol

  4. None of the above

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Correct Option: B
Explanation:

Biodiesel is a type of fuel produced from vegetable oils and animal fats. It is biodegradable and produces fewer air pollutants than petroleum-based diesel. Glycerin is a major byproduct in the process of biodiesel manufacturing.  This crude glycerine can be refined into a pure form and then be used in food, pharmaceutical and cosmetics industries. Thus the correct answer is option B.

In Brazil, $90\%$ of cars are running on

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  1. Pure alcohol

  2. Pure gasoline

  3. Mixture of alcohol and gasoline

  4. Diesel

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Correct Option: C

Fossil fuel conservation can include

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  1. Recycling waste

  2. Using alternative energy source

  3. Using renewable resources

  4. All of the above

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Correct Option: D
Explanation:

Fossil fuel can be conserved by recycling waste, opting alternative sources like solar power that do not contribute to pollution. Because fossil fuel are non-renewable. So, it is important that we should protect them.

This is not a method of saving fuel.

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  1. Using bicycle

  2. Travel in trains instead of cars

  3. Using cellphones

  4. Drawing of water from wells

Show answer
Correct Option: C
Explanation:

There are different steps which can be taken for saving the resources which are used as fuel. Bicycles and use of public transport help to reduce the consumption of fuel like the diesel and petrol. When the water is drawn from wells, this can be performed with hands and the pulley system, without the use of the motor in which there is consumption of fuel. Using the cell phones is not one of the methods which help in saving fuel because it needs electricity to get charged and functional.

Thus, the correct answer is option C.