Class 10 Quiz Level 2 (Moderate) – Source Of Energy

Total questions: 30

Geothermal energy is most suitable for regions with:

Deselect Answer

High wind speeds

Abundant sunlight

Volcanic activity

Low rainfall

None

What is the primary function of a solar inverter in a solar power system?

Deselect Answer

To store solar energy

To convert DC to AC

To track the sun's position

To increase the temperature

None

Wind turbines are most efficient when placed:

Deselect Answer

In valleys

Near buildings

On hilltops

In forests

None

Pumped-storage hydroelectricity is used to:

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Generate electricity from wind

Store energy during low demand

Produce solar power

Generate tidal energy

None

What is the role of a turbine in a hydroelectric power plant?

Deselect Answer

To store water

To convert mechanical energy to electrical energy

To regulate water flow

To generate heat

None

A solar panel generates 300 watts of power in 5 hours of sunlight. Calculate the total energy generated in kilowatt-hours (kWh).

Deselect Answer

0.15 kWh

1.5 kWh

15 kWh

150 kWh

None

Which of the following practices promotes energy conservation?

Deselect Answer

Using incandescent bulbs

Leaving appliances on standby

Insulating homes

Running water heaters all day

None

Which of the following is a limitation of renewable energy sources?

Deselect Answer

Infinite supply

High initial cost

Non-polluting

Sustainable

None

Which of the following best describes the function of a solar collector?

Deselect Answer

To store solar energy

To convert solar energy into electricity

To absorb and transfer solar heat

To reflect solar radiation

None

10.

The extraction of fossil fuels can lead to:

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Renewable energy production

Water pollution

Reduced carbon emissions

Sustainable energy use

None

11.

The best locations for wind farms are typically:

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Urban areas

Coastal regions

Forested areas

Mountain valleys

None

12.

Which of the following is a form of thermal energy storage?

Deselect Answer

Chemical batteries

Pumped hydro storage

Molten salt storage

Flywheel storage

None

13.

Enhanced geothermal systems (EGS) differ from traditional geothermal systems by:

Deselect Answer

Using volcanic heat

Drilling deeper into the Earth

Relying on surface heat

Using solar panels

None

14.

Solar water heaters work by:

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Generating electricity

Reflecting sunlight

Absorbing solar heat

Storing solar energy

None

15.

Concentrated solar power (CSP) systems generate electricity by:

Deselect Answer

Directly converting sunlight

Using mirrors to focus sunlight

Storing sunlight in batteries

Using wind turbines

None

16.

A household installs a solar panel system with a peak power of 5 kW. If the average solar insolation (sunlight) is 4 kWh/m²/day and the system operates at 75% efficiency, calculate the total energy produced per day in kilowatt-hours (kWh).

Deselect Answer

10 kWh

15 kWh

20 kWh

25 kWh

None

17.

A hydroelectric dam has a reservoir with a water flow rate of 600 cubic meters per second and a height of 120 meters. If the efficiency of the power generation is 85%, calculate the power output in megawatts (MW). (Use g = 9.8 m/s² for gravitational acceleration and the density of water = 1000 kg/m³)

Deselect Answer

468 MW

578 MW

600 MW

800 MW

None

18.

Which process converts biomass into a gas that can be used for energy?

Deselect Answer

Combustion

Gasification

Electrolysis

Fermentation

None

19.

Which of the following technologies can reduce the environmental impact of burning fossil fuels?

Deselect Answer

Solar panels

Carbon capture and storage (CCS)

Wind turbines

Hydroelectric dams

None

20.

Which of the following is a byproduct of nuclear energy production?

Deselect Answer

Carbon dioxide

Water vapor

Radioactive waste

Sulphur dioxide

None

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Class 10 Quiz Level 2 (Moderate) – Source Of Energy

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