Sources of Energy Test

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Sources of Energy Test - 24

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Weekly Quiz Competition

Question 1
1 / -0

Fuel obtained from biomass are:

A
Charcoal (from wood).

B
Bio-gas from animal waste (cow-dung etc).

C
Bio-diesel (from sugar cane and oilseed crops).

D
All of above

Solution

Biomass is a organic fuel.Charcoal is obtained from burning of the wood. Biogas is obtained from organic wastes such as animal excreta, agricultural waste etc, Bio-diesel can be obtained from oil seed crops such as Jatropa.
Question 2
1 / -0

What are built near seashores to collect water which comes during high tide?

A
Dams or reservoirs

B
Solar panel

C
Wind mill

D
Water well

Solution

Dams or reservoirs are usually build near the narrow opening of the seashores to harness the energy of the waves during high tide in generation of electricity.
Question 3
1 / -0

Radiations from a nuclear power plant is harmful to:

A
environment

B
human civilization

C
wildlife

D
all of the above

Solution

Radiation from the radioactive elements pollutes not only the environment but also the civilization coming in contact with it. It causes radiation sickness which left untreated causes fatality.
Question 4
1 / -0

What is known as Ocean thermal energy?

A
The Sun's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

B
The Moon's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

C
The Solar cell's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

D
None

Solution

Ocean thermal energy conversion (OTEC) is a process or technology for producing energy by harnessing the temperature differences (thermal gradients) between ocean surface waters and deep ocean waters.

Energy from the sun heats the surface water of the ocean. In tropical regions, surface water can be much warmer than deep water. This temperature difference can be used to produce electricity from ocean water.
Question 5
1 / -0

1 kg of ________ can light up $$1$$ bulb for $$3\times10^4$$ years.

A
Uranium

B
Halonium

C
Neutronium

D
Hydronium

Solution

1 kg of coal can light the bulb for 8 hours whereas 1 kg of uranium can light the bulb for 3 x 10$$^4$$ years.
Question 6
1 / -0

From below which are the disadvantages of nuclear energy?

A
High set up cost

B
low set up cost

C
Waste products are useful

D
None

Solution

Energy generation from the nuclear energy is greater than from any non-conventional sources of energy. But it has some disadvantages too, such as:
1. Cost of nuclear power plant set up is very high.
2. Waste generated are hazardous to health and environment.
Question 7
1 / -0

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

A
Wood

B
Gobar

C
Nuclear Energy

D
Coal

Solution

Nuclear energy is not an example of a biogas source of energy as it uses radioactive substances to produce energy.
Question 8
1 / -0

Waves are used to rotate ____________ to generate electricity. Fill in the gap.

A
Rotor of dynamo

B
Turbine of dam

C
Wheel of wind mill

D
Armature of motor

Solution

Waves are made to fall from a height onto the rotor of a turbine or dynamo to make them rotate. This mechanical energy is then converted to electrical energy.
Question 9
1 / -0

________ should be preferred over petrol as fuel for vehicles.

A
CNG

B
Coal

C
Diesel

D
None of these

Solution

CNG (compressed natural gas) is the cleanest of all fossil fuels. It produces harmless gases as compared to petrol, coal, or diesel to the environment. Hence CNG is preferred over petrol coal and diesel. It is also not very costly as compared to petrol and diesel.
Question 10
1 / -0

Which of the following is not a measure of controlling air pollution?

A
Afforestation.

B
Waste treatment at industries.

C
Using conventional sources of energy.

D
Using cleaner sources of energy.

Solution

It is very important to control air pollution to ensure sustainability of life on Earth. Some important measures that need to be taken for controlling air pollution include afforestation, waste treatment at industries, using cleaner sources of energy, reducing wastage of resources, etc.
Contribution of conventional sources of energy in pollution is not much significant.
Hence Option C is correct.

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Re-Attempt Weekly Quiz Competition

Sources of Energy Test - 24

Result

Sources of Energy Test - 24

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SHARING IS CARING

Question 1

Charcoal (from wood).

Bio-gas from animal waste (cow-dung etc).

Bio-diesel (from sugar cane and oilseed crops).

All of above

Solution

Question 2

Dams or reservoirs

Solar panel

Wind mill

Water well

Solution

Question 3

environment

human civilization

wildlife

all of the above

Solution

Question 4

The Sun's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

The Moon's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

The Solar cell's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

None

Solution

Question 5

Uranium

Halonium

Neutronium

Hydronium

Solution

Question 6

High set up cost

low set up cost

Waste products are useful

None

Solution

Question 7

Wood

Gobar

Nuclear Energy

Coal

Solution

Question 8

Rotor of dynamo

Turbine of dam

Wheel of wind mill

Armature of motor

Solution

Question 9

CNG

Coal

Diesel

None of these

Solution

Question 10

Afforestation.

Waste treatment at industries.

Using conventional sources of energy.

Using cleaner sources of energy.

Solution

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