Tag: electric energy generation and environment

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Questions Related to electric energy generation and environment

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

The resource that can be used again and again after due processing are called.

  1. Abiotic resources

  2. Natural resources

  3. Cyclical resources

  4. Human-made resources
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cyclical resources are those that can be reused or recycled through natural or human-made processes, making them available for use again after appropriate processing.

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

Methane gas has highest........... among all hydrocarbons.

  1. Ignition temperature

  2. Ratio of hydrogen to carbon

  3. Calorific value

  4. Both Band C are correct
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydrogen has the highest calorific value of 150 kJ/g. Among the hydrocarbon, methane has the highest calorific value of 55 kJ/g.

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

Common source of energy used for cooking in rural parts of India is:

  1. Sun

  2. Coal

  3. Wood and animal dung

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

Wood and animal dung are major source of energy for cooking in rural areas. It is readily available and is cheap form of energy, while solar energy is not abundantly used because its difficult to harness solar energy and coal is not cost efficient.

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

Geothermal energy can be best described as:

  1. light energy from Sun.

  2. heat energy from rocks inside Earth's surface. 

  3. heat energy from temperature difference in tides.

  4. heat energy from combustion of minerals.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Geothermal energy is heat from within the Earth. The core and lower part of mantle generates large amount of heat. Deep, super heated water present, can be pumped to surface and used to produce electricity.

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

Define renewable sources of energy.

  1. A source whose energy supplied can be renewed is called renewable source of energy.

  2. A source of energy which will exhaust in future is called renewable source of energy.

  3. A natural source providing us energy which takes long time to replenish.

  4. A source of energy which causes environmental pollution is called renewable source of energy.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A natural source of energy that can provide us energy continuously without being exhausted is called a renewable source of energy.

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

Which of the following is not ultimately derived from the Sun's energy?

  1. geothermal energy

  2. wind energy

  3. nuclear energy

  4. bio-mass.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

All the sources of energy are directly or indirectly derived from the ultimate source of energy. i.e. Sun, except for the nuclear energy. Nuclear energy is derived from the molecules of the radioactive elements.