Sources of Energy Test

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Sources of Energy Test - 21

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Weekly Quiz Competition

Question 1
1 / -0

The cost of solar cells is

A
decreasing exponentially

B
decreasing slowly

C
constant

D
increasing

Solution

The cost of solar cells is reducing exponentially.
Question 2
1 / -0

Which of the following is not an advantage of hydro energy?

A
Flowing water is found everywhere. So hydro energy can be obtained easily.

B
It is a renewable source of energy.

C
It do not cause any pollution.

D
All of the above.

Solution

Water energy has the following advantages
a) Water energy is renewable and inexhaustible source of energy.
b) Water energy does not cause any pollution
c) Water energy is a cheap source of energy.
Question 3
1 / -0

One of the biggest hydro-electric power project is

A
Sardar Sarovar

B
Tehri Hydropower

C
Koyna hydroelectric project

D
None of the above

Solution

Tehri Dam is the biggest hydro-electric power project in India.
Tehri Hydropower Complex – 2,400MW
Question 4
1 / -0

What precautions should be taken against nuclear radiations?

A
The radioactive elements should be kept in containers made up of thick lead walls.

B
The people working in the plants should wear special jackets and gloves made of lead linings.

C
The handling of the plants should be carried out from a distance.

D
All of the above.

Solution

Nuclear radiations are extremely harmful to humans. The following precautions should be strictly observed:
1. The radioactive elements like uranium, barium and krypton used in the nuclear reactor should be kept in containers made up of thick lead walls so that their radiations don't leak out.
2. The persons working the nuclear power plants should wear special jackets and gloves made up of lead linings so that the radiation does not penetrate into the body.
3. The handling of the plant should be carried out from a distance.
4. The nuclear power plant should be located at far off distance from the city population.
5. There should be proper arrangements for the disposal of nuclear wastes.
Question 5
1 / -0

Which of the following is not an application of wind energy?

A
Removing husk from grains

B
Propelling sail boats in rivers and seas

C
Windmills

D
Cyclones

Solution

There are several applications of wind energy. Some of them are listed below:
1. Removing husk from grains.
2. Propelling sailboats in rivers.
3. Moving vehicles for transportation.
4. Windmills draw water from the ground, grind grains and produce electricity.
A cyclone is a wind storm not the application of energy.
Question 6
1 / -0

Full form of OTEC is:

A
Ocean Thermal Energy Conversion

B
Ocean Thermal Consumer Energy

C
Ocean Current Thermal Energy Cycle.

D
Ocean Current Thermal Electric Plant.

Solution

OTEC stands for $$ocean$$ $$thermal$$ $$energy$$ $$ conversion$$ . OTEC is a process that can produce electricity by using the temperature difference between deep cold ocean water and warm tropical surface waters
Question 7
1 / -0

Slurry is .........................

A
The mixture of animal dung in water is called slurry.

B
Dried up material obtained from animal dung is called slurry.

C
Fresh animal dung is called slurry.

D
All of the above.

Solution

The mixture of animal dung in water is called slurry.
Question 8
1 / -0

Which of the following is an advantage of building dams?

A
The dams disturbs aquatic life

B
Dams lead go large scale disturbance of aquatic life

C
It disturbs the natural ecosystem

D
None

Solution

The dams across the Rivers can disturb the aquatic life and can lead to their large scale destruction the fishes and other water animals may enter the power generation turbines where they may get crushed. Dams provide a range of economic, environmental, and social benefits, including recreation, flood control, water supply, hydroelectric power, waste management, river navigation, and wildlife habitat
Question 9
1 / -0

Which of the following is not a disadvantage of building large dams for generating hydroelectric power?

A
Disturbance of the natural ecosystem in the surrounding forest area

B
Disruption of the plants and animals life

C
Displacement of people on a large scale

D
None of the above

Solution

The construction of dams for generating hydroelectric power and then installation of transformers and their connection to the national grid has the following four main disadvantages:
A) Disturbance of the natural ecosystem in the surrounding forest area.
B) Disruption of the plants and animal's life.
C) Displacement of people on a large scale.
D) Disruption of the aquatic ecosystem.
Question 10
1 / -0

Bioenergy is obtained from _________ energy stored in biomass.

A
chemical

B
heat

C
nuclear

D
thermal

Solution

Biogas is obtained from organic wastes such as animal excreta, agricultural waste etc, These wastes have chemical energy stored in them. And on combustion these chemical energy convert into bio-energy.

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Sources of Energy Test - 21

Result

Sources of Energy Test - 21

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SHARING IS CARING

Question 1

decreasing exponentially

decreasing slowly

constant

increasing

Solution

Question 2

Flowing water is found everywhere. So hydro energy can be obtained easily.

It is a renewable source of energy.

It do not cause any pollution.

All of the above.

Solution

Question 3

Sardar Sarovar

Tehri Hydropower

Koyna hydroelectric project

None of the above

Solution

Question 4

The radioactive elements should be kept in containers made up of thick lead walls.

The people working in the plants should wear special jackets and gloves made of lead linings.

The handling of the plants should be carried out from a distance.

All of the above.

Solution

Question 5

Removing husk from grains

Propelling sail boats in rivers and seas

Windmills

Cyclones

Solution

Question 6

Ocean Thermal Energy Conversion

Ocean Thermal Consumer Energy

Ocean Current Thermal Energy Cycle.

Ocean Current Thermal Electric Plant.

Solution

Question 7

The mixture of animal dung in water is called slurry.

Dried up material obtained from animal dung is called slurry.

Fresh animal dung is called slurry.

All of the above.

Solution

Question 8

The dams disturbs aquatic life

Dams lead go large scale disturbance of aquatic life

It disturbs the natural ecosystem

None

Solution

Question 9

Disturbance of the natural ecosystem in the surrounding forest area

Disruption of the plants and animals life

Displacement of people on a large scale

None of the above

Solution

Question 10

chemical

heat

nuclear

thermal

Solution

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