Geothermal Power Plants: Principles and Applications

Question 1

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

Accepted Answer

Hydroelectric dam

Answer

Dry steam

Answer

Flash steam

Answer

Binary cycle

Question 2

What is the primary working fluid used in binary cycle geothermal power plants?

Accepted Answer

Organic fluid with a lower boiling point than water

Answer

Water

Answer

Steam

Answer

Ammonia

Question 3

Which component of a geothermal power plant converts geothermal heat into mechanical energy?

Accepted Answer

Turbine

Answer

Reservoir

Answer

Condenser

Answer

Heat exchanger

Question 4

Which factor significantly influences the efficiency of a geothermal power plant?

Accepted Answer

Both the temperature and mass flow rate of the fluid

Answer

Temperature of the geothermal fluid

Answer

Mass flow rate of the fluid

Answer

Design of the turbine

Question 5

What is NOT a challenge associated with geothermal energy development?

Accepted Answer

Significant air pollution

Answer

High upfront capital costs

Answer

Exploration risks

Answer

Depletion of geothermal reservoirs

Question 6

What is the main function of a condenser in a geothermal power plant?

Accepted Answer

To condense steam back into water

Answer

To remove impurities from the geothermal fluid

Answer

To increase the pressure of the geothermal fluid

Answer

To store excess energy produced by the plant

Question 7

Which of the following is a disadvantage of geothermal power plants?

Accepted Answer

Intermittency

Answer

Low operating costs

Answer

High capacity factor

Question 8

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

Accepted Answer

Ocean thermal energy conversion

Answer

Binary cycle

Answer

Dry steam

Answer

Flash steam

Question 9

What is the primary operating fluid used in a dry steam geothermal power plant?

Accepted Answer

Pure steam

Answer

Superheated water

Answer

Air

Answer

Geothermal brine

Question 10

Which component of a geothermal power plant converts thermal energy into mechanical energy?

Accepted Answer

Turbine

Answer

Pump

Answer

Condenser

Answer

Generator

Question 11

What is a primary advantage of geothermal energy over other renewable energy sources?

Accepted Answer

Reliability and baseload capability

Answer

Low cost

Answer

Minimal environmental impact

Answer

High efficiency

Question 12

What is the approximate temperature range of geothermal resources suitable for electricity generation?

Accepted Answer

150-350°C

Answer

500-700°C

Answer

50-150°C

Answer

350-500°C

Question 13

Which of the following factors significantly influences the efficiency of a geothermal power plant?

Accepted Answer

Temperature and quality of the geothermal resource

Answer

Type of cooling system employed

Answer

Distance to the nearest population center

Answer

Size of the land area required

Question 14

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

Accepted Answer

Hydroelectric

Answer

Dry steam

Answer

Binary cycle

Answer

Flash steam

Question 15

What is the primary fluid used in dry steam geothermal power plants to generate steam?

Accepted Answer

Geothermal steam

Answer

Hot water

Answer

Geothermal brine

Answer

Magma

Question 16

Which of the following is a significant advantage of geothermal power over other renewable energy sources?

Accepted Answer

Reliable and consistent power generation, independent of weather conditions

Answer

Very low maintenance costs

Answer

No geographic limitations for implementation

Answer

Zero greenhouse gas emissions during operation

Question 17

Which component of a geothermal power plant converts thermal energy derived from geothermal fluids into electricity?

Accepted Answer

Turbine

Answer

Generator

Answer

Pump

Answer

Condenser

Question 18

What is the primary function of a condenser in a geothermal power plant?

Accepted Answer

Condenses the exhaust steam back into water, creating a vacuum to draw more steam through the turbine

Answer

Heats the geothermal fluid to increase its temperature

Answer

Separates steam from non-condensable gases in the geothermal fluid

Answer

Generates electricity through electromagnetic induction

Question 19

What is the primary purpose of a geothermal reservoir in a geothermal power plant system?

Accepted Answer

To store and contain geothermal fluids, allowing for their extraction and use

Answer

To convert heat energy directly into electricity through thermoelectric processes

Answer

To cool the geothermal fluid before injection back into the earth

Answer

To generate steam for driving the turbines that produce electricity

Question 20

Which of the following factors is most critical in determining the overall efficiency of a geothermal power plant?

Accepted Answer

Temperature of the geothermal fluid entering the power plant

Answer

Size of the geothermal reservoir supplying the plant

Answer

Distance of the power plant from the electricity grid

Answer

Type of geothermal power plant technology employed

Question 21

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

Accepted Answer

Solar Thermal Power Plant

Answer

Dry Steam Power Plant

Answer

Flash Steam Power Plant

Answer

Binary Cycle Power Plant

Question 22

What is the primary source of energy for a geothermal power plant?

Accepted Answer

Heat from the Earth's interior

Answer

Wind energy

Answer

Solar radiation

Answer

Hydroelectric power

Question 23

In a dry steam power plant, how is the geothermal energy used to generate electricity?

Accepted Answer

Steam from the Earth's heat directly drives a turbine.

Answer

Hot water is used to heat a working fluid, which drives a turbine.

Answer

Geothermal energy is used to create a chemical reaction, producing electricity.

Question 24

Which of the following is a significant environmental advantage of geothermal power plants compared to fossil fuel power plants?

Accepted Answer

Lower greenhouse gas emissions

Answer

No land use impact

Answer

No noise pollution

Answer

No water usage

Question 25

What is the main limitation of geothermal power plants?

Accepted Answer

Limited geographical availability of suitable geothermal resources.

Answer

Intermittent nature of the energy source

Answer

High initial construction costs

Question 26

Which of the following is a potential environmental concern associated with geothermal power plants?

Accepted Answer

Release of dissolved gases, such as hydrogen sulfide.

Answer

Depletion of groundwater resources

Answer

Destruction of natural habitats

Question 27

What is the role of a binary cycle power plant in geothermal energy production?

Accepted Answer

Uses a working fluid with a lower boiling point than water to generate steam.

Answer

Directly converts geothermal energy into electricity.

Answer

Stores geothermal energy for later use.

Question 28

What is the primary benefit of using a flash steam power plant over a dry steam power plant?

Accepted Answer

Ability to utilize hotter geothermal water resources.

Answer

Lower construction costs

Answer

Reduced environmental impact

Question 29

In which type of geothermal power plant is a working fluid used to generate steam?

Accepted Answer

Binary cycle power plant

Answer

All of the above

Answer

Flash steam power plant

Answer

Dry steam power plant

Question 30

Which of the following factors is most important in determining the suitability of a location for a geothermal power plant?

Accepted Answer

Availability of high-temperature geothermal resources

Answer

Availability of skilled labor

Answer

Proximity to major cities