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 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.

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

Which one of the following is being utilized as a source of biodiesel in the Indian countryside?

  1. Euphorbia

  2. Beetroot

  3. Sugracane

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

Jatropha is a member of the euphorbia family. One of its great selling points as a biofuel is the fact that growing it need not compete with the cultivation of food. The selling point as a bioenergy crop is that it grows in marginal, eroded land, and is resistant to drought. 

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

A petroleum plant is

  1. Sugarcane

  2. Maize

  3. Potato

  4. Euphorbia
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Euphorbia is a petroleum plant. It produces hydrocarbons known as terpenoids which are similar to petroleum. It belongs to Euphorbiaceae family. The latex of this plant can be converted to useful fuels. About 20 tonnes of dry matter per hectare per year is produced by this plant. The latex is converted into natural gas and gasoline. Gasoline is used as an alternative fuel in vehicles.
So, the correct answer is 'Euphorbia'.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Petrocrops are plants

  1. Grown near oil fields

  2. Used in refining crude oil

  3. Whose fossil remains formed crude oil

  4. From which petrol-like fuels can be derived
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Petrocrops are specific plants that produce hydrocarbons similar to petroleum, which can be extracted and refined into fuel. They are not related to the formation of ancient crude oil.

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

Coal has been mainly formed by 

  1. Bryophytes

  2. Pteridophytes

  3. Angioperms

  4. Algae
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Bryophytes are group of non vascular land plants including hornworts, liverworts and mosses. Peat is a fuel which is produced from dried bryophytes, typically sphagnum. Enormous deposits of peat is accumulated which is later converted into coal.
  • Hence coal has been mainly formed by bryophytes.
  • So,the correct answer is 'Bryophytes'.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

The first petroplant discovered by Calvin was

  1. <p>Copaifera longsdorfii</p>

  2. <p>Euphorbia lathyrus</p>

  3. <p>Jatropha</p>

  4. <p>Calotropis</p>
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Calvin started his work on petroplants in 1977. Petroplants produce latex of long hydrocarbon chains which can be converted into petrol like products. He worked on Euphorbia lathyris. When he collected latex from the samples and analysed its composition by different methods like spectroscopy and chromatography, he found long chain hydrocarbons similar to petrol and other fuels. Euphorbia produces large amount of latex which is processed and converted to petrol like fuel.
So, the correct answer is 'Euphorbia lathyris'.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

The energy obtained from biological resources is called as

  1. Electrical energy

  2. Mechanical energy

  3. Bioenergy

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

Bioenergy is renewable energy made available from materials derived from biological sources. Biomass is any organic material which has stored sunlight in the form of chemical energy. As a fuel it may include wood, straw, manure, sugarcane, and many other byproducts from a variety of agricultural processes.