Tag: evs

Questions Related to evs

The production of alternative sources of non renewable sources is called as

components and importance of food science of kitchen evs

  1. Renewable resources

  2. Eco-efficiency

  3. Sustainable development

  4. None of the above

Show answer
Correct Option: B
Explanation:
  • The production of alternative sources of non-renewable (not capable of being replenished) sources is called as Eco-efficiency.
  • The term eco-efficiency was coined by WBCSD(World Business Council for Sustainable Development) in its 1992 publication
  • Eco-efficiency can be achieved by the use of alternative raw materials and recycling wastes.
  • Hence the production of alternative sources of non-renewable sources is called as Eco-efficiency.
  • So, the correct answer is 'Eco-efficiency'.

What is bagasse?

components and importance of food science of kitchen evs

  1. Biomas of sugarcane

  2. Biomas of wheat

  3. Biomas of grass

  4. None of the above

Show answer
Correct Option: A
Explanation:
  • Bagasse is the dry pulpy fibrous residue left after the extraction of juice from sugar cane.
  • Bagasse products are perfect alternatives to petroleum-based and plastic products.
  • It is used as a biofuel for the production of heat, energy, and electricity, and in the manufacture of pulp and building materials. 
  • Hence bagasse is Biomass of sugarcane.
  • So, the correct answer is 'Biomass of sugarcane'.

The term eco-efficiency was coined by

components and importance of food science of kitchen evs

  1. WHO

  2. NCBI

  3. WWF

  4. WBCSD

Show answer
Correct Option: D
Explanation:
  • The production of alternative sources of non-renewable (not capable of being replenished) sources is called as Eco-efficiency. It is based on the concept of creating more goods and services while using fewer resources and creating less waste and pollution.
  • The term eco-efficiency was coined by WBCSD(World Business Council for Sustainable Development) in its 1992 publication.
  • Hence The term eco-efficiency was coined by WBCSD.
  • So, the correct answer is 'WBCSD'.

Rate limiting material in biogas production is ___________.

components and importance of food science of kitchen evs

  1. Methane

  2. Cellulose

  3. Starch

  4. Acetic Acid

Show answer
Correct Option: A

Given below are four statements each with two blanks.
Select the option which correctly fills up the blank in any two statements.
(i) Bhopal gas disaster took place on_____ 1984 and this day is now observed as the______ day in India to make the anniversary of the Bhopal gas disaster.
(ii) _____ is a biodegradable pollutant while_____ is a non-biodegradable pollutant.
(iii) When pollutants are released from a single point it is called______ pollution, but when it is over a large area, then it is called_____ pollution.
(iv) ______ is the world's most problematic aquatic weed, introduced in India for its lovely flowers, also called as______.

components and importance of food science of kitchen evs

  1. (i) December 5, National pollution prevention (iv) Parthenium, terror of Bengal

  2. (i) December 2, Bhopal gas tragedy (ii) DDT, sewage

  3. (ii) Sewage, DDT (iii) point source, non point source

  4. (iii) line source, fixed source (iv) Eicchornia,tiger of bengal

Show answer
Correct Option: C
Explanation:

(i) Bhopal gas disaster took place on 3rd December 1984 and this day is now observed as the Bhopal gas tragedy day in India to make the anniversary of the Bhopal gas disaster.

 (ii) Sewage is a biodegradable pollutant while DDT is a non-biodegradable pollutant.
(iii) When pollutants are released from a single point it is called point source pollution, but when it is over a large area, then it is called non-point source pollution.
(iv) Parthenium is the world's most problematic aquatic weed, introduced in India for its lovely flowers, also called the terror of Bengal.

So the right answer is '(ii) Sewage, DDT (iii) point source, non-point source'.

Percentage of photosynthetically active radiation (PAR) in the incident solar radiation is?

components and importance of food science of kitchen evs

  1. $1-5\%$

  2. $2-10\%$

  3. Less than $50\%$

  4. Approx. $100\%$

Show answer
Correct Option: C
Explanation:

Less than $50\%$ of the solar energy incident over earth is PAR(photosynthetically active radiation).

Pollution from animal excreta and organic waste from kitchen can be most profitably minimized by _________________.

components and importance of food science of kitchen evs

  1. Storing them in underground storage tanks

  2. Using them for producing biogas

  3. Dumping them in river

  4. Using them directly as biofertilisers

Show answer
Correct Option: B
Explanation:

Pollution from animal excreta and organic waste from kitchen can be most profitably minimized by using them to produce biogas for domestic use. 

So, The correct answer is (B).

Biogas is composed of

components and importance of food science of kitchen evs

  1. methane, carbon dioxide, nitrogen and hydrogen

  2. carbon dioxide, nitrogen and hydrogen

  3. ethane, carbon dioxide, nitrogen and hydrogen

  4. methane, carbon dioxide, nitrogen and sulphur

Show answer
Correct Option: A

Management that meets the needs of present generation without compromising the ability of the future generation to meet their needs. 

components and importance of food science of kitchen evs

  1. Sustainable development

  2. Afforestation

  3. Social forestry

  4. All

Show answer
Correct Option: A
Explanation:

Definition of sustainable development the management of forest resources in a sustainable manner, involves two aspects - prevention of deforestation and extension of out forest wealth. 

Which one of the following is not a conventional sources of energy 

components and importance of food science of kitchen evs

  1. LPG

  2. Coal

  3. Petroleum

  4. Solar cooker

Show answer
Correct Option: D
Explanation:

Solar cooker is a non conventional sources of energy. Increasing population would need more and more energy. New sources such as solar energy, nuclear energy are being used. Solar cooker uses solar energy.