Tag: commercial applications

Quizzes (170) Questions (1551)

Questions Related to commercial applications

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

Who is credited with identified petrocrops?

  1. M. S. Swaminathan

  2. M. Calvin

  3. H. Krebs

  4. N. Borlaug
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

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

  1. Ficus

  2. Zizyphus

  3. Pongamia

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

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

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

  1. It can be adulterated

  2. It is cheaper than petrol

  3. It burns more efficiency

  4. It reduces pollution
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

The earliest use of petroleum was in

  1. Heating

  2. Furnace

  3. Medicine

  4. Production of gas
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Sea tides can be used as

  1. Sufficient amount of sunlight stored

  2. A device to take sun bath

  3. An energy source

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
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'

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

An ecosystem is the biotic community which along with the physical environment forms an interacting system. It can be _________________.

  1. Man-made

  2. Temporary

  3. Natural

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

An ecosystem can be natural (like a forest or pond) or man-made (like an aquarium or crop field). They can also vary in duration, from temporary to permanent.

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Each ecosystem consist of ........... main components.

  1. Three

  2. Two

  3. Four

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

An ecosystem is made up of two components-  biotic and abiotic. It includes the interaction of the living things which are the biotic components in a given area with the non-living environment which are the abiotic factors such as weather, earth, sun, soil, climate and atmosphere. Thus the correct answer is option B.

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Which of the following terms defines the prefix 'eco'?

  1. Ecology

  2. Environment

  3. Adaptation

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

The word ecosystem was coined by Tansley a British botanist in 1935. Tansley defined ecosystem as a system resulting from the interaction between biotic and abiotic components of the environment. Biotic components include all living components and abiotic components include all physical factors such as weather, atmosphere, soil, etc. present in the surrounding. Hence the prefix 'eco' means environment.

Multiple choice commercial applications issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Which of the following is an artificial ecosystem?

  1. Rice-field

  2. Forest

  3. Grassland

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

Rice-field (an agricultural field) is considered to be an artificial ecosystem. It is because of the following: It is man-made ecosystem and has all the components of the ecosystem. Abiotic factors which include air, water, soil etc. Biotic factors which include all the living organisms like plants, animals and microbes. It also comprises phenomena such as the flow of energy,  food chains, food webs etc. Hence, option A is correct.