Sources of Energy Test

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Sources of Energy Test - 23

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following does not create pollution?

A
Industrial wastes

B
Burning of fossil fuels

C
Electric power station

D
Ocean Thermal Energy

Solution

OCTEC (ocean thermal energy conversion power plant) harnesses ocean tidal energy and is a clean source of energy. Heavy pollution is caused by smoke emitted from chimneys of industries, burning of fossil fuels and electric power stations.
Question 2
1 / -0

From below which are the properties of good source of energy?

A
It is economical

B
It does a huge amount of work per unit mass

C
It is easily accessible

D
All of the above

Solution

The properties of a good source of energy are:
$$i)$$ It does a large amount of work per unit volume or mass.
$$ii)$$ It is easily accessible. It is easy to store and transport.
$$iv)$$ It is economical.
Question 3
1 / -0

Hot spots are source of _________ energy.

A
Wind

B
Geothermal

C
Nuclear

D
Hydroelectric

Solution

Due to geological changes, molten rocks formed in the deeper hot regions of the earth’s crust are pushed upward and trapped in certain regions called hot spots. When underground water comes in contact with the hot spot, steam is generated. Sometimes hot water from that region finds outlets at the surface. Such outlets are known as hot springs. The steam trapped in rocks is routed through a pipe to a turbine and used to generate electricity.
Question 4
1 / -0

The types of energies generated from sea are:

A
Renewable and Non Conventional source of energy

B
Non Renewable and Non Conventional source of energy

C
Renewable and Conventional source of energy

D
Non Renewable and Conventional source of energy

Solution

Ocean thermal energy, wave energy and tidal energy are the energies generated from the sea. These forms non-conventional sources of energy. They are renewable in nature.
Question 5
1 / -0

Choose the correct statement(s):
(1) Sewage can be used with gobar and agricultural waste to produce bio gas in biogas plant.
(2) The largest composition in biofuel is of methane.

A
(1) only

B
(2) only

C
Both (1) and (2)

D
None of the above

Solution

Organic material is used as a substrate for the production of a biogas. Organic matters encompasses sewage, kitchen waste, animal and human excreta, etc.
Biofuel produced from biomass consists of methane, hydrogen, nitrogen etc. Largest component is of methane (50%-75%).
Question 6
1 / -0

Biogas plant is generally made of what?

A
Bricks

B
Wood

C
Tiles

D
Plaster of Paris

Solution

Temperature inside the biogas increases tremendously during the anaerobic fermentation process. Out of the given options, brick is the suitable material to be used for the making of the biogas plants to withstand high temperatures at low cost.
Question 7
1 / -0

Which of the following is not an example of a bio-mass energy source?

A
Wood

B
Gobar-gas

C
Agricultural wastes

D
Coal

Solution

Biomass energy is the energy that is derived from organic material and which is renewable and sustainable source of energy. Wood,gobar-gas and agricultural wastes are biomass energy source whereas coal is not an example of biomass energy source as it is a fossil fuel.
Question 8
1 / -0

Biogas contains _____ % methane.

A
75-85%

B
50-75%

C
80-90%

D
35-55%

Solution

Methane forms the major constituent of a biogas. Amount usually ranges from 50-75%.
Question 9
1 / -0

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

A
geothermal energy

B
wind energy

C
nuclear energy

D
bio-mass.

Solution

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.
Question 10
1 / -0

How fossil fuels are formed:

A
Formed from remains of dead plants and animals under the earth

B
Formed from remains of living plants and animals under the earth

C
Formed from charcoal

D
None
Solution
Explanation:
- Plants and animals decompose to produce fossil fuels. These fuels, which can be found in the Earth's crust and contain carbon and hydrogen, can be burned to generate energy.
- Organic matter buried deep under the ground is exposed to heat and pressure over millions of years, resulting in the formation of fossil fuels. Fossil fuels include coal, oil, and natural gas.
  Option A is correct.

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Sources of Energy Test - 23

Result

Sources of Energy Test - 23

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SHARING IS CARING

Question 1

Industrial wastes

Burning of fossil fuels

Electric power station

Ocean Thermal Energy

Solution

Question 2

It is economical

It does a huge amount of work per unit mass

It is easily accessible

All of the above

Solution

Question 3

Wind

Geothermal

Nuclear

Hydroelectric

Solution

Question 4

Renewable and Non Conventional source of energy

Non Renewable and Non Conventional source of energy

Renewable and Conventional source of energy

Non Renewable and Conventional source of energy

Solution

Question 5

(1) only

(2) only

Both (1) and (2)

None of the above

Solution

Question 6

Bricks

Wood

Tiles

Plaster of Paris

Solution

Question 7

Wood

Gobar-gas

Agricultural wastes

Coal

Solution

Question 8

75-85%

50-75%

80-90%

35-55%

Solution

Question 9

geothermal energy

wind energy

nuclear energy

bio-mass.

Solution

Question 10

Formed from remains of dead plants and animals under the earth

Formed from remains of living plants and animals under the earth

Formed from charcoal

None

Solution

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