Sources of Energy Test

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Sources of Energy Test - 20

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Weekly Quiz Competition

Question 1
1 / -0

The energy generated by hydel projects constitutes only ___ of the total energy in the country.

A
$$50\%$$

B
$$23\%$$

C
$$60\%$$

D
$$90\%$$

Solution

It has been estimated than total hydro-electric potential in India from major, minor and micro-hydroelectric projects $$4\times 10^{11}\ kwh$$. The energy generated by hydel projects constitutes only $$23\%$$ of the total energy generated in the country.
Question 2
1 / -0

As the water is released through control valves, _______ of water changed to _______.

A
Rotational energy, potential energy

B
Kinetic energy, potential energy

C
Potential energy, rotational energy

D
Rotational energy, thermal energy

Solution

As the water is released through control valves, the potential energy of water changed to rotational energy.
The water from the high level in the dam is carried through pipes, to the turbine. The moving fluid acts on the blades to spin them and impart energy to the rotor. Thus, we see that basically, we need to move the fan, the rotor blade, with speed which would turn the shaft of the dynamo and convert the mechanical energy into electrical energy.
Question 3
1 / -0

Tidal energy is harnessed by:

A
transporting sea water to a close dam.

B
constructing a submerged dam.

C
constructing a dam across a narrow opening to the sea.

D
constructing an overhead dam.

Solution

Difference in sea-levels due to tides during different times of day gives us tidal energy. Tidal energy is harnessed by constructing a dam across a narrow opening to the sea. A turbine fixed at the opening of the dam converts tidal energy to electricity.
Question 4
1 / -0

Energy potential from various sources of sea is _______. Efficient commercial exploitation of same is __________.

A
Small, difficult

B
Large, difficult

C
Small, easy

D
Large, easy

Solution

The energy potential from the sea (tidal energy, wave energy and ocean thermal energy) is quite large, but efficient commercial exploitation is difficult.
Question 5
1 / -0

Which of the following is not a disadvantage of building large dams?

A
A vast variety of flora and fauna get submerged

B
Dams can base dangers of earthquake

C
Human settlement get submerged by stored water

D
Provide water for irrigation process

Solution

Providing water to irrigation process is an advantage of creating dam.
Question 6
1 / -0

Which of the following is not a biomass energy source?

A
Wood

B
Cow dung

C
Sugarcane

D
Coal

Solution

Some major biofuels or biomass energy source are wood, cow dung, animal and plant wastes, etc. Coal is not a biofuel.
Question 7
1 / -0

Which of the following is a type of biogas plant?

A
Fixed dome type

B
Tube type

C
Fixed fuel type

D
Moving chamber type

Solution

Bio gas plant is of two types: fixed dome type and floating gas holder type.
Option A
Question 8
1 / -0

Health hazards related to nuclear radiations are:

A
causing cancer.

B
causing deformity in the body.

C
damaging the genes of a person.

D
All of the above.

Solution

Nuclear radiations have several adverse effects on human health.
1. The radiations can affect body cells and this may cause cancer.
2. The radiations have the capability to damage the genes of a person and this can be transferred to the next generation.
3. The radiations can cause permanent and incurable deformity in the human body.
Question 9
1 / -0

Which of the following is not a purpose to build dams?

A
Prevent flooding of the rivers in the area.

B
To provide water for irrigation

C
To generate hydroelectricity.

D
None of the above.

Solution

The dams are constructed for the following purposes:
a) To prevent flooding of the rivers in the area.
b) To provide water for irrigation purposes.
c) To generate hydroelectricity.
Question 10
1 / -0

What is the biggest advantage of nuclear energy?

A
It is clean.

B
Huge amount of energy is produced.

C
The radioactive emissions from a nuclear power plant are healthy.

D
Nuclear power plant can be easily set up in urban areas.

Solution

The yield of nuclear energy is enormous and hence it has extraordinary potential as an energy source. It is one of the most low-carbon energy sources.

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Re-Attempt Weekly Quiz Competition

Sources of Energy Test - 20

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Sources of Energy Test - 20

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SHARING IS CARING

Question 1

$$50\%$$

$$23\%$$

$$60\%$$

$$90\%$$

Solution

Question 2

Rotational energy, potential energy

Kinetic energy, potential energy

Potential energy, rotational energy

Rotational energy, thermal energy

Solution

Question 3

transporting sea water to a close dam.

constructing a submerged dam.

constructing a dam across a narrow opening to the sea.

constructing an overhead dam.

Solution

Question 4

Small, difficult

Large, difficult

Small, easy

Large, easy

Solution

Question 5

A vast variety of flora and fauna get submerged

Dams can base dangers of earthquake

Human settlement get submerged by stored water

Provide water for irrigation process

Solution

Question 6

Wood

Cow dung

Sugarcane

Coal

Solution

Question 7

Fixed dome type

Tube type

Fixed fuel type

Moving chamber type

Solution

Question 8

causing cancer.

causing deformity in the body.

damaging the genes of a person.

All of the above.

Solution

Question 9

Prevent flooding of the rivers in the area.

To provide water for irrigation

To generate hydroelectricity.

None of the above.

Solution

Question 10

It is clean.

Huge amount of energy is produced.

The radioactive emissions from a nuclear power plant are healthy.

Nuclear power plant can be easily set up in urban areas.

Solution

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