Tag: commercial applications

Quizzes (170) Questions (1551)

Questions Related to commercial applications

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which one of the following can be used in place of petrol?

  1. Ethanol

  2. Butanol

  3. Propanol

  4. Methanol
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Over the last few years more and more alternatives for petrol have been sought. As oil reserves run out, petrol prices rise and the climate continues to change, people are increasingly looking towards ethanol fuel as a potential solution to all of these problems.
Ethanol is more commonly known as the alcohol found in alcoholic drinks. It is a colourless and flammable liquid (at room temperature and pressure); it is its flammable nature that makes it useful as a fuel.
The two main sources for ethanol fuel are either sugar beet which can by fermented directly, or from cereal grains. In the later case the starch must first be broken down into sugars, this is accomplished (for fuels) by treating it with dilute sulphuric acid.
Thus, the correct answer is option A.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Natural gas that was formed from ancient prehistoric forests is called

  1. Fossil fuels

  2. Petroleum

  3. Gobar gas

  4. LPG
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fossil fuels are energy sources formed from the remains of ancient plants and animals buried under high pressure and temperature over millions of years. Petroleum is a specific type of fossil fuel, not the general term for all such materials.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Fossil fuels are 

  1. Conventional resources

  2. Non-conventional resources

  3. Non-renewable resources

  4. Both A and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Conventional sources of energy are generally non-renewable sources of energy as the accumulation or creation of conventional sources of energy takes years, once they are exploited or consumed. 
  • Fossil fuels are an example of conventional resources. Petrol, diesel, coal, natural gas, etc are examples of fossil fuels that are obtained by the microbial action on the dead matter for a long time. 
  • They are used as a source of fuel and energy from ancient times and it takes years to form once they are exploited.

Thus, the correct answer is option D.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which of the following is/are measures taken for protection of fossil fuel?

  1. Gasification of coal

  2. CNG

  3. Gasohol

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gasification of coal, use of CNG, and use of gasohol are all methods to either extend the life of fossil fuel reserves or reduce the environmental impact of their consumption, thus serving as measures for their protection or sustainable use.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

One of the following does not belong to the group

  1. Water

  2. Forests

  3. Petrol

  4. Soil
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The resources which can be replenished again after their consumption are referred to as the renewable sources of energy.  Water is considered as the renewable form of energy. The water reserves can be replenished by the rainfall. Forests are the renewable resource which can be replenished by afforestation. The soil can be replenished by the weathering of the rocks. The petrol is available in limited stocks by the activity of the microbes on the dead matter under the soil.

Thus, the correct answer is option C.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Ground water will not be depleted due to

  1. Afforestation

  2. Thermal power plants

  3. Loss of forests, decreased rainfall

  4. Cropping of high water demanding crops
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Thermal power plants require large amounts of water for cooling, which can lead to significant depletion of local ground water sources. The other options (afforestation, etc.) generally help maintain or improve water tables.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Oil, coal and naturalgas constitute

  1. Renewable source

  2. Fossil fuel

  3. Eontic fuel

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fossil fuels are the hydrocarbon compounds formed due to the microbial activity on the dead plants and animals. There are different materials which can be referred as the fossil fuels. The coal, natural gas, oil, petrol, diesel are all the components which are obtained from the Earth. These are used as fossil fuels for the production of energy.

Thus, the correct answer is option B. 

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

LPG cooking gas is

  1. Low pressure gas

  2. Biogas

  3. Fossil fuel

  4. Low price gas
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Liquefied petroleum gas or liquid petroleum gas (LPG or LP gas), also referred to as simply propane or butane are flammable mixtures of hydrocarbon gases used as fuel in heating appliances, cooking equipment and vehicles. 

LPG is prepared by refining petroleum or "wet" natural gas and is almost entirely derived from fossil fuel sources, being manufactured during the refining of petroleum (crude oil) or extracted from petroleum or natural gas streams as they emerge from the ground. Thus, the correct answer is option C.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which of the following is not a forest product?

  1. Plywood

  2. Sealing wax

  3. Kerosene

  4. Gum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The products which are obtained from the forests include the wood, gum, resins, tannins, sealing wax, etc. The plywood is the sheet of the wood which is used for furniture and house construction. The sealing wax is obtained from the bugs which live on trees. The gum is obtained from the secretions of the trees. The kerosene is not a forest product which is obtained from the distillation of the fuel from the ground. 

Thus, the correct answer is option C.