Tag: electric energy generation and environment

Questions Related to electric energy generation and environment

State whether the given statement is True or False :
Solar panel can be set up in remote and inaccessible hamlets or very sparsely inhabited areas. 
physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. True

  2. False

Show answer
Correct Option: A
Generation of non-conventional energy produces air pollution. 
physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Generation of conventional sources of energy produces environmental threat and air pollution. Generation of non-convention sources of energy is a pollution free process.

Of the following, renewable source of energy is

physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. Wood

  2. Petroleum

  3. Natural gas

  4. Uranium

Show answer
Correct Option: A

_________is a form of renewable energy.

physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. Coal

  2. Petroleum

  3. Wind

  4. None of these

Show answer
Correct Option: C
Explanation:

Energy that can be renewed or replenished over a period of time is called renewable energy. E.g. wind energy, solar energy etc.

The sources of energy which are being produced continuously in nature and are inexhaustible, are called

physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. Conventional sources

  2. Non-renewable sources

  3. Non-conventional sources

  4. None of these

Show answer
Correct Option: C

Solar energy can be used to produce

physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. Electrical energy

  2. Mechanical energy

  3. Heat energy

  4. All of these

Show answer
Correct Option: D

Which of the following devices transforms light energy into chemical energy?

physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. Car dynamo

  2. Electric motor

  3. Electric fan

  4. None of these

Show answer
Correct Option: D

Among the following the sources of energy for which the sun is not a chief source of energy is ________.

physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. Hydroelectric power plant

  2. Ocean thermal energy conversion (OTEC).

  3. Tidal energy

  4. Biomass.

Show answer
Correct Option: A

Which of the following is not a source of bio-fuel?

physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. bio-ethanol

  2. bio-diesel

  3. bio-petrol

  4. animal fats/oils

Show answer
Correct Option: C

Biomass based energy can be obtained from :

physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

  1. direct burning of wood, agricultural residue etc.

  2. biomass may be converted in to some other form of fuel which can release energy.

  3. bacterial decomposition of organic matters like cow dung, agricultural wastes, human excreta etc. in presence of water in absence of air, a mixture of $CH _4, CO _2, H _2, H _2S $ etc.

  4. burning of industrial waste.

Show answer
Correct Option: A,B,C
Explanation:

A biofuel is a fuel that is produced through contemporary biological processes, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of fossil fuels, such as coal and petroleum, from prehistoric biological matter. Biofuels can be derived directly from plants, or indirectly from agricultural, commercial, domestic, and/or industrial wastes. Renewable biofuels generally involve contemporary carbon fixation, such as those that occur in plants or microalgae through the process of photosynthesis. Other renewable biofuels are made through the use or conversion of biomass (referring to recently living organisms, most often referring to plants or plant-derived materials). This biomass can be converted to convenient energy-containing substances in three different ways: thermal conversion, chemical conversion, and biochemical conversion. This biomass conversion can result in fuel in solid, liquid, or gas form. This new biomass can also be used directly for biofuels.