Sources of Energy Test

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Sources of Energy Test - 25

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is not a type of pollution?

A
Air pollution.

B
Water pollution.

C
Space pollution.

D
Noise pollution.

Solution

Various types of pollution are air pollution, water pollution, noise pollution, soil pollution, etc. Space pollution is not a type of pollution.
Question 2
1 / -0

One of the key factors involved in the choice of a source of energy is:

A
pollution caused by it in the atmosphere.

B
density of the energy source.

C
ease of integration with the solar devices.

D
all of the above.

Solution

A source of energy is chosen based on many factors like availability, cost and ease of its usage.
The damage to the environment that the source will cause in the process of extracting energy from it is also an important factor in deciding or choosing the source of energy. The source should cause least pollution, release least harmful gasses and should not harm the environment.
Question 3
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A good source of energy would be the one which would do a _______ amount of work per unit volume of mass. Any source of energy we use to do work is consumed & _______ used again.

A
larger, can be

B
smaller, can be

C
larger, cannot be

D
smaller, cannot be
Solution
A good source of energy would be the one which would do a larger amount of work per unit volume of mass. Any source of energy we use to do work is consumed & cannot be used again.
A good source of energy should have the following characteristics:
It should do a large amount of work per unit mass or volume - it means that the output energy must be more than the input energy. It should have high calorific value.
It should be easily accessible - the energy source should be able to provide energy over a long period of time. Example: coal and petroleum.
Should be easy to store and transport - most common sources of energy such as coal, petrol and LPG need to be transported to users from their points of production. They also need proper storage. Thus it is important to store and transport these sources safely and economically.
Safe and convenient to use - energy sources should be safe as it is used by a large number of people and should be convenient.
Question 4
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'Anemometer' is an instrument used to measure

A
Height

B
Purity of milk

C
Velocity of wind

D
None of these

Solution

Anemometer is a common weather station instrument, it is used to measure velocity of wind.
Question 5
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_________is a form of renewable energy.

A
Coal

B
Petroleum

C
Wind

D
None of these

Solution

Energy that can be renewed or replenished over a period of time is called renewable energy. E.g. wind energy, solar energy etc.
Question 6
1 / -0

Among oceanic trenches the deepest trench is

A
Kurile trench

B
Japan trench

C
Mariana trench

D
Tonga trench

Solution

The Mariana Trench or Marianas Trench is located in the western Pacific Ocean about $$200\ km$$ east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about $$2,550\ km$$ in length and $$69\ km$$ in width.
Question 7
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The energy of tides and currents in the ocean can be converted into electrical energy, such energy is known as:

A
Mechanical energy

B
Ocean energy

C
Atomic energy

D
None of these

Solution

Tidal energy utilizes the power of tide to produce electricity, whereas wave energy systems use the waves formed in an ocean or sea. Oscillators are placed in the sea, and they oscillate when waves come in contact with them. This oscillatory motion is utilized to generate electricity.
Being obtained from oceans these are called Ocean Energy.
Question 8
1 / -0

Geothermal energy is produced in India from hot springs by a 5 KW geothermal power plant at

A
Manikaran (HP)

B
Puga (Ladhakh)

C
Gulf of kutch

D
Ankleshwar

Solution

Geothermal energy is energy from the shallow ground hot water and hot rock found some miles or deeper to the extremely high temperatures of molten rock called magma. Geothermal activity in the Parbati Valley is due to the hot springs at Manikaran, a village situated on the banks of Parbati river in Himachal Pradesh. Thus the correct answer is option A.
Question 9
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Which of the following is/are advantages of a solar cell?

A
Solar cells have no moving parts

B
Requires little maintenance

C
They can be set up in remote areas

D
All the above

Solution

Solar cells have no moving parts so there is less energy wasted in the forms of heat or sound or frictional forces. This helps in increasing its efficiency.
Since there is no moving part in solar cells there is no physical damage done to the equipment and once after setup cells are just kept under the sky and require minimum maintenance.
There is absolutely no other raw materials or high machinery system required, such as fuels, or turbine generators. All they need is just the Sun to provide solar energy, and hence they can be set up anywhere under the sky, in remote areas too.
Question 10
1 / -0

Ocean thermal energy is due to:

A
energy stored by waves in the ocean

B
temperature difference at different levels in the ocean

C
pressure difference at different levels in the ocean

D
tides arising out in the ocean

Solution

Ocean Thermal Energy Conversion (OTEC) uses the temperature difference between cooler deep water and warmer shallow or surface ocean water to run a heat engine and produce useful work, usually in the form of electricity.

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Sources of Energy Test - 25

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Sources of Energy Test - 25

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SHARING IS CARING

Question 1

Air pollution.

Water pollution.

Space pollution.

Noise pollution.

Solution

Question 2

pollution caused by it in the atmosphere.

density of the energy source.

ease of integration with the solar devices.

all of the above.

Solution

Question 3

larger, can be

smaller, can be

larger, cannot be

smaller, cannot be

Solution

Question 4

Height

Purity of milk

Velocity of wind

None of these

Solution

Question 5

Coal

Petroleum

Wind

None of these

Solution

Question 6

Kurile trench

Japan trench

Mariana trench

Tonga trench

Solution

Question 7

Mechanical energy

Ocean energy

Atomic energy

None of these

Solution

Question 8

Manikaran (HP)

Puga (Ladhakh)

Gulf of kutch

Ankleshwar

Solution

Question 9

Solar cells have no moving parts

Requires little maintenance

They can be set up in remote areas

All the above

Solution

Question 10

energy stored by waves in the ocean

temperature difference at different levels in the ocean

pressure difference at different levels in the ocean

tides arising out in the ocean

Solution

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