Sources of Energy

Q.

Explain primary and secondary sources of energy.

Q.

Briefly discuss the various commercial sources of energy.

Q.

Classify the following into renewable and non- renewable resources

(i) trees

(ii) fish

(iii) petroleum

(iv) coal

(v) iron-ore

(vi) water

Q.

Which of the following is a non-conventional source of energy?

1. Coal

2. Wind

3. Hydropower

4. Petroleum

Q. is a non-commercial source of energy.

1. Coal
2. Petroleum
3. Electricity
4. Firewood

Q.

Coal and petroleum are examples of ___ sources of energy.

Q.

What percentage of India's commercial energy requirement is satisfied by coal?

1. 20%

2. 35%

3. 50%

4. 60%

Q.

Name the various sources of electricity?

Q.

Wind energy generated through windmills is used for minor irrigation and agricultural operations.

1. False

2. True

Q.

Select non-commercial sources of energy.

1. Firewood

2. Natural gas

3. Uranium

4. Cattle dung

Q.

Select the commercial sources of energy.

1. Coal

2. Petroleum

3. Agricultural waste

4. Firewood

Q.

India is heavily dependent on petroleum products for its energy needs. State true or false.

1. False

2. True

Q. is a commercial source of energy.

1. Coal
2. Agriculture waste
3. Firewood
4. Manure

Q.

Hydroelectricity accounts for what percentage of India's commercial energy use?

1. 10%

2. 30%

3. < 5%

4. 20%

Q.

India has a huge potential for tidal, wind and solar energy. State true or false.

1. True

2. False

Q.

The quantity of energy which when used to construct and drive non-human infrastructure replaces a unit of human labour is called

1. human power

2. horse power

3. labour energy

4. energy slave

Q.

Which rank does India hold in producing wind energy?

1. 5th

2. 6th

3. 4th

4. 7th

Q. Coal, petroleum and electricity are ____.

1. none
2. conventional sources
3. commercial sources
4. both A and B

Q. The quantity of energy which when used to construct and drive non-human infrastructure replaces a unit of human labour is called .

1. human power
2. horse power
3. labour energy
4. energy slave

Q. At present, nearly ____ per cent of the energy consumed is obtained from non commercial traditional sources.

1. $45$
2. $51$
3. $23$
4. $10$

Q. Non-commercial energy sources account for over ______ of the total energy consumption.

1. 30%
2. 35%
3. 40%
4. 38%

Q. Firewood, animal waste, agriculture waste, natural gas, etc. are the components of _____________.

1. Communication
2. Lithosphere
3. Trasnport
4. Energy

Q. All sources of power, i.e. hydro-electricity, Wind energy, thermal power, diesel, , oil, etc. emanate from ____________.

1. air
2. water
3. land
4. all of the above

Q.

Which of the following accounts for the largest portion of the energy generated within our country?

1. Hydropower

2. Nucelar

3. Wind

4. Thermal

Q. Coal purchased by a factory is a final good or an intermediate good?