Geothermal Energy: How It Works and Its Benefits

Question 1

Which of the following is NOT a source of geothermal heat?

Accepted Answer

Sunlight

Answer

Heat from the Earth's core

Answer

Radioactive decay

Answer

Volcanic activity

Question 2

What is the most common method of extracting geothermal heat?

Accepted Answer

Drilling wells into the ground

Answer

Using solar panels

Answer

Burning fossil fuels

Answer

Hydroelectric dams

Question 3

Which of the following is NOT a type of geothermal power plant?

Accepted Answer

Solar thermal

Answer

Dry steam

Answer

Flash steam

Answer

Binary cycle

Question 4

Which of the following is NOT a source of geothermal energy?

Accepted Answer

Heat from the sun

Answer

Heat from the Earth's core

Answer

Heat from groundwater

Answer

Heat released by radioactive decay

Question 5

In addition to electricity generation, what other applications does geothermal energy have?

Accepted Answer

Space heating

Accepted Answer

Industrial processes

Answer

Transportation

Question 6

Which exploration method relies on temperature measurements to pinpoint potential geothermal resources?

Accepted Answer

Temperature logging

Answer

Gravity surveying

Answer

Seismic exploration

Answer

Electrical resistivity surveying

Question 7

The primary source of heat for geothermal energy is the:

Accepted Answer

Earth's core

Answer

Solar radiation

Answer

Fossil fuels

Answer

Nuclear fusion

Question 8

Which type of geothermal power plant directly utilizes the heat from geothermal reservoirs to produce electricity without any intermediate heat transfer fluid?

Accepted Answer

Dry steam power plant

Answer

Hybrid power plant

Answer

Binary cycle power plant

Answer

Flash steam power plant

Question 9

In a binary cycle geothermal power plant, a key difference compared to a dry steam power plant is the use of a working fluid with a:

Accepted Answer

Lower boiling point than water

Answer

Higher specific heat capacity than water

Answer

Higher boiling point than water

Question 10

The main component of geothermal fluid that is responsible for its corrosive nature is:

Accepted Answer

Hydrogen sulfide

Answer

Methane

Answer

Ammonia

Answer

Carbon dioxide

Question 11

What is the primary source of geothermal energy?

Accepted Answer

Heat from the Earth's core and mantle

Answer

Wind

Answer

Solar radiation

Answer

Tidal energy

Question 12

Which method is commonly used to extract geothermal energy?

Accepted Answer

Drilling boreholes to pump hot water or steam

Answer

Using geothermal reservoirs

Answer

Installing geothermal heat pumps

Answer

Generating electricity through wind turbines

Question 13

What is the primary environmental benefit of geothermal energy utilization?

Accepted Answer

Reduced carbon emissions during electricity generation

Answer

Reliable energy source

Answer

Renewable resource

Answer

Low operating costs

Question 14

What is the function of a geothermal heat pump?

Accepted Answer

Utilizes geothermal energy to heat or cool buildings

Answer

A type of geothermal power plant

Answer

A method for extracting geothermal energy

Question 15

Which type of rock is most suitable for geothermal energy extraction?

Accepted Answer

Permeable and porous rock formations

Answer

Sedimentary rock

Answer

Metamorphic rock

Answer

Igneous rock

Question 16

What is the main difference between a dry steam and a flash steam geothermal power plant?

Accepted Answer

The method employed to convert geothermal fluid into steam

Answer

The type of geothermal reservoir utilized

Answer

The efficiency of electricity generation

Question 17

Which of the following is **not** a source of geothermal energy?

Accepted Answer

Tidal energy

Answer

Thermal energy stored in rocks

Answer

Heat from the Earth's core

Answer

Heat from decaying radioactive elements

Question 18

What is the primary method used to extract geothermal energy from the Earth to generate electricity?

Accepted Answer

Drilling boreholes and pumping hot water or steam

Answer

Using solar panels to convert sunlight into geothermal energy

Answer

Mining the Earth's crust for geothermal rocks

Answer

Harnessing wind energy to generate geothermal electricity

Question 19

What is a key environmental benefit of geothermal energy?

Accepted Answer

Reduced greenhouse gas emissions

Answer

Abundant resource availability

Answer

High energy conversion efficiency

Answer

Low operating costs

Question 20

What is the primary application of geothermal energy in residential settings?

Accepted Answer

Space heating and hot water supply

Answer

Electricity generation

Answer

Transportation fuel

Answer

Industrial process heating

Question 21

What is a binary cycle geothermal power plant?

Accepted Answer

A plant that uses a secondary fluid with a lower boiling point than water to generate electricity

Answer

A plant that uses dry steam to drive a turbine

Answer

A plant that uses hot water to produce steam

Question 22

Which of the following is a sustainable practice in geothermal energy development?

Accepted Answer

Reinjecting geothermal fluids back into the reservoir

Answer

Disposing of geothermal fluids in surface water bodies

Answer

Using geothermal energy for non-renewable purposes

Question 23

What is the main function of a geothermal heat pump in a geothermal heating system?

Accepted Answer

To transfer heat from the ground into a building or vice versa

Answer

To generate electricity from geothermal energy

Answer

To store thermal energy for future use

Question 24

What is the fundamental force that drives geothermal energy?

Accepted Answer

Heat from the Earth's interior

Answer

Biomass

Answer

Sunlight

Answer

Wind

Question 25

Which form of energy is extracted from geothermal sources?

Accepted Answer

Thermal energy

Answer

Potential energy

Answer

Electrical energy

Answer

Kinetic energy

Question 26

Which of the following is not a method of extracting geothermal energy?

Accepted Answer

Hydrofracturing

Answer

Dry steam

Answer

Flash steam

Answer

Binary cycle

Question 27

In electricity generation, geothermal energy is primarily harnessed using:

Accepted Answer

Steam turbines

Answer

Wind turbines

Answer

Solar panels

Answer

Hydroelectric dams

Question 28

What is an environmental benefit of geothermal energy?

Accepted Answer

Reduced greenhouse gas emissions

Answer

Visual pollution

Answer

High water consumption

Answer

Land degradation

Question 29

Which region in the United Kingdom is a key source of geothermal energy?

Accepted Answer

Cornwall

Answer

Scotland

Answer

Wales

Answer

Northern Ireland

Question 30

For heating systems, the typical temperature range of geothermal fluids is:

Accepted Answer

50-150°C

Answer

20-50°C

Answer

150-250°C

Answer

250-350°C

Question 31

Which of the following may indicate the presence of geothermal activity?

Accepted Answer

Hot springs

Answer

Rainstorms

Answer

Windy conditions

Answer

Solar flares

Question 32

What is a primary advantage of employing enhanced geothermal systems (EGS)?

Accepted Answer

Increased potential for energy extraction

Answer

Simplified drilling techniques

Answer

Lower capital costs

Answer

Reduced environmental impact

Question 33

Which of the following is NOT a source of geothermal energy?

Accepted Answer

Solar radiation

Answer

Heat from the Earth's core

Answer

Decomposing organic matter

Answer

Radioactive decay in the Earth's crust

Question 34

One of the challenges associated with geothermal energy is its potential for

Accepted Answer

Environmental risks

Answer

Intermittent energy supply

Answer

Low energy yield

Answer

High operating costs

Question 35

Geothermal energy contributes to the reduction of greenhouse gas emissions primarily by

Accepted Answer

Substituting fossil fuels

Answer

Enhancing energy efficiency

Answer

Absorbing carbon dioxide

Answer

Promoting sustainable energy practices

Question 36

In a geothermal power plant, which component converts thermal energy from geothermal fluids into electricity?

Accepted Answer

Turbine

Answer

Condenser

Answer

Generator

Answer

Heat exchanger

Question 37

Which factor primarily influences the temperature of geothermal fluids?

Accepted Answer

Depth

Answer

Geological composition of the reservoir

Answer

Fluid flow rate

Answer

Location of the geothermal reservoir

Question 38

Which type of geothermal heating system utilizes a heat pump to extract heat from the ground?

Accepted Answer

Ground source heat pump

Answer

Solar thermal system

Answer

Heat exchanger

Answer

Biomass boiler

Question 39

Which country is recognized as a global leader in the production of geothermal energy?

Accepted Answer

Iceland

Answer

United States

Answer

Japan

Answer

China

Question 40

The primary source of heat for geothermal energy is the decay of which elements within the Earth's core?

Accepted Answer

Radioactive elements

Answer

Tidal forces from the Moon and Sun

Answer

Solar radiation absorbed by the Earth's surface

Answer

Friction from tectonic plates

Question 41

Which of the following is NOT a common method of extracting geothermal energy?

Accepted Answer

Burning geothermal fluids to generate steam

Answer

Pumping hot water or steam to the surface to drive turbines

Answer

Using ground source heat pumps for heating and cooling

Answer

Using geothermal heat to directly heat buildings

Question 42

What type of geothermal system utilizes the temperature difference between the surface and shallow depths?

Accepted Answer

Ground source heat pump system

Answer

Binary cycle power plant

Answer

Flash steam power plant

Answer

Dry steam power plant

Question 43

What is the primary function of an injection well in a geothermal power plant?

Accepted Answer

To return used geothermal fluids back to the reservoir

Answer

To extract hot water or steam from the reservoir

Answer

To monitor seismic activity near the power plant

Question 44

What is Enhanced Geothermal System (EGS) technology primarily intended for?

Accepted Answer

Accessing geothermal energy from rock formations with low natural permeability

Answer

Concentrating sunlight to generate solar thermal energy

Answer

Capturing waste heat from industrial processes