Sources of Energy Test

Result

Sources of Energy Test - 19

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Weekly Quiz Competition

Question 1
1 / -0

Find odd one out:

A
Coal

B
Petroleum

C
Natural gas

D
Wind

Solution

Coal, petroleum and natural gas are conventional sources of energy.
Wind is non-conventional source of energy.
Question 2
1 / -0

What type of energy is described from heated ground water?

A
Hydroelectric

B
Nuclear

C
Solar

D
Geothermal

Solution

Geothermal energy is described from heated ground water.
Question 3
1 / -0

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

A
Sun

B
Coal

C
Wood and animal dung

D
None of the above

Solution

Wood and animal dung are the major sources of energy for cooking in rural areas. It is readily available and is a cheap form of energy, while solar energy is not abundantly used because it's difficult to harness solar energy and coal has not cost-efficient.
Question 4
1 / -0

What are the disadvantages of thermal power plants?

A
Heavy environmental pollution

B
They need to be set up near coal or oil fields

C
Depletion of ground natural reserves and fossil fuels

D
All of the above

Solution

Thermal power plants:
1. Burns huge amounts of coal to produce steam by boiling water causing pollution.
2. Transportation of coal is costlier than transmission of electricity.
3. Extraction of coal and oil depletes ground natural reserves.
Question 5
1 / -0

Mark the statement which is an advantage of hydro energy.

A
Water availability is free of cost.

B
Construction of dams is an easy task.

C
Both A and B

D
None of the above

Solution

The water required for generation hydro power is available free of cost. The construction of dams is not an easy task. It needs heavy investment and destroys the ecosystem in the surroundings.
Question 6
1 / -0

Tidal energy works using:

A
average of sea levels of high and low tides.

B
resisting the formation of tides.

C
difference in sea levels between high and low tides.

D
using heat energy in tides.

Solution

Due to gravitational pull of the Moon (and the Sun), sea level changes and high tides and low tides are formed. Difference in sea levels between high tides and low tides gives us tidal energy.
Question 7
1 / -0

Electricity production from wave energy requires:

A
Strong waves

B
Mild waves

C
Either (A) or (B)

D
None of the above

Solution

Wave energy would be a viable proposition only where waves are very strong.
Wave power is the capture of energy of wind waves to do useful work, for example, electricity generation, water desalination, or pumping water. Wave-power generation is not a widely employed commercial technology compared to other established renewable energy sources such as wind power, hydropower, and solar power.
Question 8
1 / -0

Which of the following is not a limitation of hydel energy?

A
Hydel power stations are pollution free.

B
A vast reservoir is needed.

C
It leads to a loss of wildlife habitat.

D
It can be harnessed at only a few places.

Solution

For running a hydel power station throughout the year, vast amount of water is required. This demands a vast reservoir. Such a reservoir can be made only at a few places which are geographically suitable and do not interfere with ecosystem and human habitation.
Question 9
1 / -0

The biggest drawback of tidal energy is:

A
it causes excessive pollution in oceans

B
locations where it can be harnessed are limited

C
the height difference of tides is low and much energy is not produced

D
it needs a lot of manpower

Solution

Tidal energy can be harnessed only at very limited locations.
Some of the disadvantages of tidal energy are:
1. High tidal power plant construction cost.
2. Negative influence on marine life forms.
3. Location limits.
Question 10
1 / -0

Ocean thermal energy is based on:

A
Temperature difference across the sea.

B
Temperature difference between surface and depths of sea.

C
High temperature at depth of sea water.

D
Temperature rise in climate caused by sea water.

Solution

The water at the surface of the sea or ocean is heated by the Sun while the water in deeper sections is relatively cold. This difference in temperature is exploited to obtain energy in ocean-thermal-energy conversion plants.

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Re-Attempt Weekly Quiz Competition

Sources of Energy Test - 19

Result

Sources of Energy Test - 19

Score

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Rank

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SHARING IS CARING

Question 1

Coal

Petroleum

Natural gas

Wind

Solution

Question 2

Hydroelectric

Nuclear

Solar

Geothermal

Solution

Question 3

Sun

Coal

Wood and animal dung

None of the above

Solution

Question 4

Heavy environmental pollution

They need to be set up near coal or oil fields

Depletion of ground natural reserves and fossil fuels

All of the above

Solution

Question 5

Water availability is free of cost.

Construction of dams is an easy task.

Both A and B

None of the above

Solution

Question 6

average of sea levels of high and low tides.

resisting the formation of tides.

difference in sea levels between high and low tides.

using heat energy in tides.

Solution

Question 7

Strong waves

Mild waves

Either (A) or (B)

None of the above

Solution

Question 8

Hydel power stations are pollution free.

A vast reservoir is needed.

It leads to a loss of wildlife habitat.

It can be harnessed at only a few places.

Solution

Question 9

it causes excessive pollution in oceans

locations where it can be harnessed are limited

the height difference of tides is low and much energy is not produced

it needs a lot of manpower

Solution

Question 10

Temperature difference across the sea.

Temperature difference between surface and depths of sea.

High temperature at depth of sea water.

Temperature rise in climate caused by sea water.

Solution

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