Tag: making biofuels

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Questions Related to making biofuels

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

Leakage of oil tanks and improper oil extraction can cause

  1. Biomagnification

  2. Oil spills

  3. Air pollution

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

Oil spills occur when liquid petroleum is released into the environment by vehicle, vessel or pipeline. It is mostly seen in water bodies. Crude oil is released by tankers on land thus leading to oil spills. In water bodies, improper oil extraction due to drilling rigs, offshore oil platforms and well result in oil spills. Thus the correct answer is option B.

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

Which of the following is fossilized remains of organic materials?

  1. Natural gas

  2. Petrol

  3. Gold

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A fossil is the remains of a once-living plant or animal that was preserved in rocks or other materials. It includes fossil fuels (oil, coal, petroleum, and natural gas) that have been formed from the remains of these dead plants and animals.It includes bones or shells of animals and leaves, seeds, or woody parts of plants. Which are subjected to tremendous pressure, heat and other conditions that convert them into fossil fuels.
So, the correct answer is 'Both A and B'
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Find the odd one out.

  1. Bioalcohol

  2. Green diesel

  3. Bioethers

  4. Petroleum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bioalcohol, green diesel, and bioethers are all modern types of biofuels derived from biomass sources. Petroleum is a fossil fuel formed over millions of years from ancient organic remains, making it the odd one out among renewable biofuel options.

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

It is possible to extract maximum energy from wood through 

  1. Biomass

  2. Cracking

  3. Direct burning

  4. Gasification
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gasification is an efficient means of converting low value fuels and residuals into a synthesis gas (or syngas). Syngas is used to produce power, steam, hydrogen, and basic chemicals such as methanol and ammonia.

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

Cultivation of more fuel wood trees is known as

  1. Afforestation

  2. Energy plantations

  3. Energy cropping

  4. Deforestation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Energy plantation means growing selected species  of  trees and shrubs which are  harvestable in a comparably  shorter time and are  specifically meant for fuel. The fuel wood may be used either directly in wood burning stoves and boilers or processed into methanol, ethanol and producer gas. These plantations help provide wood either for cooking in homes or for industrial use, so as to satisfy local  energy  needs in a decentralized manner.

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

The most abundant fossil fuel is

  1. Natural gas

  2. Petrol

  3. Diesel

  4. Coal
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Fossil fuels are obtained from organic matter that has decomposed under the intense pressure and heat of the earth's crust. According to a data published in 2013 by the International Energy Agency, coal was found to be the most abundant fossil fuel. Thus, the correct answer is option D.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which of the following plant species you would select for the production of biodiesel?

  1. Brassica

  2. Zea mays

  3. Pongamia

  4. Jatropha
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Two major types of biofuels are bioethanol and biodiesel. The former is produced from crops like maize, sugarcane, wheat, sorghum, sugar beet, potato, and the latter from oil-seeds like rapeseed, soybean, palm and  Jatropha curcas. Among the biodiesel-yielding plants,  Jatropha curcas  has attracted a lot of attention in recent years because of the positive energy balance of its oil and its ability to grow in a annual rainfall ranging from 250-3000 mm.

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

Recently government of India has allowed mixing of alcohol in petrol. What is amount of alcohol permitted for mixing in petrol?

  1. 2.5%

  2. 10-15%

  3. 10%

  4. 5%
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The government of India has mandated blending of 5% of ethanol in petrol in order to reduce vehicle exhaust emissions and also to reduce the import burden on account of crude petroleum from which petrol is produced. The practice of blending ethanol in petrol started in 2001 and as ethanol is a by-product of sugar industry and is expected to be procured at low rates. further, it reduces the petroleum use in transportation and greenhouse gas emissions.

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

The black wood tree of India is 

  1. Acacia nilotica

  2. Dalbergia sisson

  3. Dalbergia latifolia

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

Dalbergia latifolia is an economically important timber species native to low elevation tropical monsoon forests of eastern India. Some common names in English are blackwood, bombay blackwood. Wood from Dalbergia latifolia tree is used in premium furniture making and cabinetry, as veneer, as plywood, for outdoor furniture.

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

An ideal good fuelwood is obtained from

  1. Bauhinia racemosa

  2. Dalbergia sissoo

  3. Michelia excess

  4. Mangifera indica
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dalbergia sissoo is a highly valued hardwood timber species, providing an additional income source in agroforestry systems, mostly in India and Pakistan. The establishment of D. sissoo plantations for wood production can be an attractive proposition in economic terms. Most plantations are managed primarily for timber, with fuelwood as a secondary product. For fuelwood production in short rotations, several other species may give higher financial returns.