Tag: bioenergy

Questions Related to bioenergy

Gasohol is a _____________.

commercial applications bioenergy biofuels making biofuels technological and industrial development

  1. Renewable fuel

  2. Non-renewable fuel

  3. Newly discovered fossil fuel

  4. Combination of renewable and non-renewable resources

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Correct Option: D
Explanation:
Gasohol is a  combination of renewable and non-renewable resources.
Gasohol is an alternative fuel consisting of a mixture of typically 90 percent gasoline with 10 percent anhydrous ethanol. Gasohol can be used in most modern and light duty vehicles with an internal combustion.
Gasohol is a mixture of gasoline and alcohol (mostly ethanol).

The term used for a blend of 10-15% ethanol with petrol is known as ___________.

commercial applications bioenergy biofuels making biofuels technological and industrial development

  1. Gasohol

  2. Glycol

  3. Xylol

  4. Hexanol

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Correct Option: A
Explanation:

A- A fuel mixture of 10% ethanol and 90% petrol is known as gasohol or E10. It can be used in most modern automobiles and is also cost effective.

Who is credited with identified petrocrops?

commercial applications bioenergy biofuels making biofuels technological and industrial development

  1. M. S. Swaminathan

  2. M. Calvin

  3. H. Krebs

  4. N. Borlaug

Show answer
Correct Option: B
Explanation:

Euphorbiaceae serve as the petroplants. Dr. M. Calvin (1979) was the first to collect the hydrocarbons from plants of Euphorbiaceae. He suggested that these can be the renewable substitute for the conventional petroleum sources. Latex of Euphorbia lathyrus contains fairly high percentage of terpenoids. These can be converted into high grade transportation fuel. 

Thus, the correct answer is option B.

The fruit of which of the following plant is capable of producing biodiesel?

commercial applications bioenergy biofuels making biofuels technological and industrial development

  1. Ficus

  2. Zizyphus

  3. Pongamia

  4. Jatropha

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Correct Option: D
Explanation:

A) Opuntia Ficus-indica can produce oils in vegetative tissues for biofuel production.

B) Ziziphus mauritiana's seed oil meets all the major biodiesel requirements.

C) Pongamia pinata's seed oil can also be used as a biodiesel.

D) Jatropha curcas fruit is capable of producing biodiesel.

So, the correct answer is 'Jatropha'.

One of the following is not a possible reason for use of CNG in automobiles

commercial applications bioenergy biofuels making biofuels technological and industrial development

  1. It can be adulterated

  2. It is cheaper than petrol

  3. It burns more efficiency

  4. It reduces pollution

Show answer
Correct Option: A
Explanation:

Compressed natural gas vehicles require a greater amount of space for fuel storage than conventional gasoline-powered vehicles. Since it is a compressed gas, rather than a liquid like gasoline, CNG takes up more space for each GGE (gasoline gallon equivalent). However, the tanks used to store the CNG take up space in the trunk of a car or bed of a pickup truck which has been modified to additionally run on CNG. This problem is solved in factory-built CNG vehicles that install the tanks under the body of the vehicle, leaving the trunk free (e.g.,  Volkswagen) which sold in countries such as Peru). Another option is installed on the roof (typical on buses), but this could require structural modifications.

SO the correct answer is 'It can be adulterated'.

The earliest use of petroleum was in

commercial applications bioenergy biofuels making biofuels technological and industrial development

  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

commercial applications bioenergy biofuels making biofuels technological and industrial development

  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'

Wood gas is used as

biology bioenergy biofuels making biofuels technological and industrial development

  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?

biology bioenergy biofuels making biofuels technological and industrial development

  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

biology bioenergy biofuels making biofuels technological and industrial development

  1. Pure alcohol

  2. Pure gasoline

  3. Mixture of alcohol and gasoline

  4. Diesel

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Correct Option: C