Sources of Energy Test

Result

Sources of Energy Test - 31

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Weekly Quiz Competition

Question 1
1 / -0

Ultimate source of hydroelectricity is the _______ .

A
the potential energy of water

B
the kinetic energy of water

C
the electro-chemical energy of water

D
solar energy

Solution

The water in the reservoir above the inlet to the turbines has gravitational potential energy which is converted to kinetic energy and then to electrical energy as the water goes to the lower level of the outlet.
The ultimate source of that hydro electricity is gravitational potential energy due to large heights of storage as PE depend on height as
$$PE=mgh$$ where $$h$$ is height.
Question 2
1 / -0

If ocean thermal energy is made feasible and cheaper, it has tremendous potential because:

A
Potential energy in oceans is immense

B
Ocean waves are very strong

C
Most of the solar energy is incident on the ocean surface

D
A lot of heat energy is trapped in the land mass below the oceans

Solution

$$71 \%$$ of the Earth's surface is covered by oceans. Hence, most of the solar energy is absorbed by the oceans. This energy can be harnessed using OCTEC (ocean thermal energy conversion power plant). Hence, ocean thermal energy has great potential.
Question 3
1 / -0

What is the disadvantage of building a large dam?

A
Natural ecosystem in the surrounding forest areas get disturbed

B
Plants and animals' life get disrupted

C
People are displaced on a large scale.

D
All of the above.

Solution

Followings are some disadvantages of building of large dams:
1. Natural ecosystem is disturbed in surrounding areas
2. People and animals' life is disrupted
3. People are displaced on a large scale.
4. Aquatic ecosystem gets disturbed
Question 4
1 / -0

Which of the following are characteristics of a good source of energy?

A
It can provide an adequate amount of useful energy at a steady rate over a long period of time.

B
It should be safe and convenient to use.

C
It should be economical.

D
All of the above.

Solution

A good source of energy should be such that it can provide an adequate amount of useful energy at a steady rate over a long period of time. It should be safe and convenient to use, economical, and easy to store and transport.
Question 5
1 / -0

From below which are the qualities of good fossil fuel?

A
Readily available

B
Low cost

C
high calorific value

D
All of above

Solution

Characterisitcs of a good fossil fuel are:
1. Calaorific value should b high
2. Moisture content should be low
3. Available at a low or reasonable cost
4. Safe and convenient to store and transport
Question 6
1 / -0

Which of the following is not a feature of bio energy?

A
It improves soil quality

B
It enhances water retention

C
It reduces carbon dioxide content in the atmosphere

D
It increases pollution

Solution

Bioenergy refers to electricity and gas that is generated from organic matter, known as biomass. It is a biodegradable form of energy hence it never increases pollution.
Option "D" is correct.
Question 7
1 / -0

The largest installation of wind turbines in our country is in:

A
Ladakh

B
Gujarat

C
Kanyakumari

D
Madhya Pradesh

Solution

The largest wind energy farm has been established near Kanyakumari in Tamil Nadu and it generates $$380 \ MW$$ of electricity.
So option C is the answer.
Question 8
1 / -0

The heat energy obtainable from hot rocks present inside the earth crust is termed as

A
Nuclear energy

B
Tidal energy

C
Geothermal energy

D
None of these

Solution

Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. The geothermal energy of the Earth's crust originates from the original formation of the planet and from the radioactive decay of materials
Question 9
1 / -0

Which of the following is not a consequence of exploiting the sources of energy?

A
Air pollution.

B
Depletion of natural resources.

C
Purification of atmosphere.

D
Global warming.

Solution

Exploiting any source of energy disturbs the environment in some way or the other. Choice of the source of energy depends on the cost, the efficiency of the source, and its environmental consequences. It is a fact that air pollution, depletion of natural resources, and global warming are direct consequences of the exploitation of sources of energy.
So, purification of the atmosphere is not possible by exploiting sources of energy.
Question 10
1 / -0

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

A
bio-ethanol

B
bio-diesel

C
bio-petrol

D
animal fats/oils

Solution

Biofuels are the fuels that are derived from the biomass like plant, algae material or animal waste. Bio-ethanol, bio-diesel, animal fats/oils are biofuels. But bio-petrol is not a bio-fuel.

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Re-Attempt Weekly Quiz Competition

Sources of Energy Test - 31

Result

Sources of Energy Test - 31

Score

-

Rank

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SHARING IS CARING

Question 1

the potential energy of water

the kinetic energy of water

the electro-chemical energy of water

solar energy

Solution

Question 2

Potential energy in oceans is immense

Ocean waves are very strong

Most of the solar energy is incident on the ocean surface

A lot of heat energy is trapped in the land mass below the oceans

Solution

Question 3

Natural ecosystem in the surrounding forest areas get disturbed

Plants and animals' life get disrupted

People are displaced on a large scale.

All of the above.

Solution

Question 4

It can provide an adequate amount of useful energy at a steady rate over a long period of time.

It should be safe and convenient to use.

It should be economical.

All of the above.

Solution

Question 5

Readily available

Low cost

high calorific value

All of above

Solution

Question 6

It improves soil quality

It enhances water retention

It reduces carbon dioxide content in the atmosphere

It increases pollution

Solution

Question 7

Ladakh

Gujarat

Kanyakumari

Madhya Pradesh

Solution

Question 8

Nuclear energy

Tidal energy

Geothermal energy

None of these

Solution

Question 9

Air pollution.

Depletion of natural resources.

Purification of atmosphere.

Global warming.

Solution

Question 10

bio-ethanol

bio-diesel

bio-petrol

animal fats/oils

Solution

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