Sources of Energy Test

Result

Sources of Energy Test - 26

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Weekly Quiz Competition

Question 1
1 / -0

Choose the incorrect statement.

A
We are encouraged to plant more trees so as to ensure clean environment and also provide bio-mass fuel.

B
Gobar-gas is produced when crops, vegetable wastes etc, decompose in absence of oxygen.

C
The main ingredient of bio-gas is ethane and it gives a lot of smoke and also produces a lot of residual ash.

D
Biomass is a renewable source of energy.

Solution

The energy derived from biogas is biomass energy. In case of burning fuel, such as firewood, it leads to respiratory diseases. But biogas, which is rich in methane, will reduce a lot of respiratory diseases, eye infections, asthma etc.
Hence, option C is wrong.
Question 2
1 / -0

The power generated in a windmill:

A
is more in rainy season since damp air would make more air mass hitting the blades

B
depends on the height of the tower

C
depends on wind speed

D
can be increased by planting tall trees close to the tower

Solution

The power generated in a windmill depends on the speed with which the windmill blades are rotating, which depends upon the wind speed.
Therefore, option C is correct.
Question 3
1 / -0

Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?

A
Nuclear energy

B
Thermal energy

C
Solar energy

D
Geothermal energy

Solution

Solar energy leads to least environmental pollution in the process of its harnessing and utilisation because it doesn't emit harmful gases in the environment. while In harnessing of Nuclear energy, Therma energy and Geothermal energy Waste product, huge smoke and pollutant gasses produce that become cause of environmental pollution.
Question 4
1 / -0

Which of the following can't be used to make a solar cell?

A
Silicon

B
Platinum

C
Gallium

D
Germanium

Solution

Solar cells generally require semi-conductors for their construction.Silicon and Germanium are semi-conductors and Gallium when mixed with other impurities can act as semi-conductor but Platinum is not a semiconductor and Platinum being a metal is a good conductor .It can not be used as semi-conductor and more over platinum is very expensive to get.
Question 5
1 / -0

The oceans cover almost ...... percent of the surface of earth with water and act as a vast collector of ...... energy.

A
$71$ , chemical

B
$97$ , solar

C
$71$ , solar

D
$17$ , hydroenergy

Solution
Question 6
1 / -0

Which of the following devices transforms light energy into chemical energy?

A
Car dynamo

B
Electric motor

C
Electric fan

D
None of these

Solution
Question 7
1 / -0

Of the following, ____________ converts light energy into electrical energy.

A
Motor

B
Battery

C
Solar cell

D
None of these

Solution

In a solar cell, solar energy from the Sun is converted into electrical energy. This electrical energy is used by the various electrical appliances.
Question 8
1 / -0

The sources of energy which are being produced continuously in nature and are inexhaustible, are called

A
Conventional sources

B
Non-renewable sources

C
Non-conventional sources

D
None of these

Solution

Non-conventional energy resources are renewable, easily available eco-friendly, pollution free. Solar energy, wind energy, tidal energy, biogas, geo-thermal energy are the various non-conventional energy resources. Hence option C correct.
Question 9
1 / -0

The generation of electricity from water energy

A
Will never get exhausted

B
Will not produce any environmental pollution

C
Is renewable source of energy

D
All the above are correct

Solution
Question 10
1 / -0

The source of energy which is different from others is

A
Lignite

B
Natural gas

C
Sun

D
Coal

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Re-Attempt Weekly Quiz Competition

Sources of Energy Test - 26

Result

Sources of Energy Test - 26

Score

-

Rank

-

SHARING IS CARING

Question 1

We are encouraged to plant more trees so as to ensure clean environment and also provide bio-mass fuel.

Gobar-gas is produced when crops, vegetable wastes etc, decompose in absence of oxygen.

The main ingredient of bio-gas is ethane and it gives a lot of smoke and also produces a lot of residual ash.

Biomass is a renewable source of energy.

Solution

Question 2

is more in rainy season since damp air would make more air mass hitting the blades

depends on the height of the tower

depends on wind speed

can be increased by planting tall trees close to the tower

Solution

Question 3

Nuclear energy

Thermal energy

Solar energy

Geothermal energy

Solution

Question 4

Silicon

Platinum

Gallium

Germanium

Solution

Question 5

717171, chemical

979797, solar

717171, solar

171717, hydroenergy

Solution

Question 6

Car dynamo

Electric motor

Electric fan

None of these

Solution

Question 7

Motor

Battery

Solar cell

None of these

Solution

Question 8

Conventional sources

Non-renewable sources

Non-conventional sources

None of these

Solution

Question 9

Will never get exhausted

Will not produce any environmental pollution

Is renewable source of energy

All the above are correct

Solution

Question 10

Lignite

Natural gas

Sun

Coal

User

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My Perfomance

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$71$ , chemical

$97$ , solar

$71$ , solar

$17$ , hydroenergy