Sources of Energy Test

Result

Sources of Energy Test - 18

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following uses solar cells?

A
Natural satellites

B
Water dams

C
Artificial satellites

D
Motor vehicle

Solution

Solar cells have access only to the solar energy and chemical energy (battery embedded in satellite system). However, chemical energy is limited. Hence, solar energy is the standard source of energy used in satellites.
Question 2
1 / -0

We burn fuels and in doing so:

A
Contributes to pollution

B
Keep the nature clean

C
Make the air fragrant

D
Extract energy only without contributing to pollution

Solution

Fuels are burnt in order to cater our needs of energy. During the process, by-products are released which are harmful for the environment. These by-products causes pollution in environment.
Question 3
1 / -0

A Wind-mill converts wind energy to _____ energy

A
Chemical

B
Electrical

C
Solar

D
Potential

Solution

A Wind-mill converts wind energy to electrical energy with the help of dynamo.
Question 4
1 / -0

The wastes, from energy resources, causing air pollution are termed as:

A
pollutants

B
polluting

C
polluted

D
none of the above

Solution

The wastes, from energy resources, causing air pollution are termed as pollutants. Pollutants are the harmful chemicals and substances that cause pollution.
For example, sewage, plant and animal wastes, plastic, dust etc.
Question 5
1 / -0

Industries produce pollutants as their:

A
main product

B
waste product

C
by-product

D
resources

Solution

The industrial output comprises the main product, a few by-products, and waste products. The waste products are the ones that cause pollution in the environment.
Question 6
1 / -0

Choose the correct statement.

A
Biomass energy causes no pollution.

B
Biomass energy causes heavy pollution.

C
Biomass energy causes less pollution as compared to conventional sources of energy.

D
Biomass energy is costly.

Solution

Bio-mass is the source of fuels coming from plant and animal products like wood and cow-dung. Decomposition of bio-mass gives bio-gas which does not produce pollutants like coal and petroleum do. Bio-gas is an excellent fuel as it contains up to 75% methane. It burns without smoke, leaves no residue like ash in wood, charcoal and coal burning. Its heating capacity is high.
However, its combustion still produces some pollutants, though they are less than those produced by burning fossil fuels.
Question 7
1 / -0

Biomass can be defined or described as:

A
petroleum

B
organic matter which can be converted to fuel

C
inorganic matter which can be converted to fuel

D
massive living things

Solution

Biomass is organic matter that can be used as energy source, made up of wood, crops and animal waste. It is renewable source of energy.
Question 8
1 / -0

Biomass is a source of energy which we can get from:

A
Coal

B
Natural gas

C
Petroleum

D
Cow dung

Solution

Coal, natural gas and petroleum are all fossil fuels while biomass is source of energy available from organic matter like plants and animal wastes.
Question 9
1 / -0

Polluted air leads to:

A
ailment in lungs, skin and eyes

B
good health

C
ease in breathing

D
none of the above

Solution

Pollutants pollute the air and lead to various kinds of diseases such as respiratory problems, problems leading to lungs, skin, and eyes. Polluted air leads to asthma also.
Question 10
1 / -0

What is/are the energy available from sea in the below options?

A
Tidal energy

B
Wave energy

C
Ocean thermal energy

D
All of above

Solution

Tidal energy - Tides form in the ocean due to the gravitation pull of the moon. Tidal energy is a form of hydropower that utilizes energy from tides to produce electricity.

Wave energy - Waves in the sea are used to run the turbines to generate electricity.

Ocean thermal energy - Water at the sea surface is hotter than the water at its depth. This temperature difference is used to produce energy.

Hence, A, B, and C all the energies are available from the sea.

So, the correct option is D.

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Re-Attempt Weekly Quiz Competition

Sources of Energy Test - 18

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Sources of Energy Test - 18

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SHARING IS CARING

Question 1

Natural satellites

Water dams

Artificial satellites

Motor vehicle

Solution

Question 2

Contributes to pollution

Keep the nature clean

Make the air fragrant

Extract energy only without contributing to pollution

Solution

Question 3

Chemical

Electrical

Solar

Potential

Solution

Question 4

pollutants

polluting

polluted

none of the above

Solution

Question 5

main product

waste product

by-product

resources

Solution

Question 6

Biomass energy causes no pollution.

Biomass energy causes heavy pollution.

Biomass energy causes less pollution as compared to conventional sources of energy.

Biomass energy is costly.

Solution

Question 7

petroleum

organic matter which can be converted to fuel

inorganic matter which can be converted to fuel

massive living things

Solution

Question 8

Coal

Natural gas

Petroleum

Cow dung

Solution

Question 9

ailment in lungs, skin and eyes

good health

ease in breathing

none of the above

Solution

Question 10

Tidal energy

Wave energy

Ocean thermal energy

All of above

Solution

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