Environmental Technology Systems 3

What are the advantages of using GSHPs?

• Requirement for fuel storage

• Reduction in energy bills

• Increase in CO₂ emissions

• Higher maintenance costs compared to combustion appliances

What is the primary function of an air source heat pump (ASHP)?

• Generate electricity from rainwater

• Extract free heat from low temperature air

• Burn fossil fuels for heat

• Produce carbon dioxide

What is the main disadvantage of using an ASHP system?

• Cheaper and easier to install than a GSHP

• Lower maintenance costs compared to combustion appliances

• Less efficient with existing heating systems

• No requirement for fuel storage

What is the primary source of biomass material?

• Coal

• Natural gas

• Petroleum

• Wood

What is the main advantage of using a micro-combined heat and power (mCHP) system?

• It has limited capacity for electrical generation

• The initial installation costs are high

• It is not suitable for all properties

• It reduces the building's carbon footprint

What is the primary use of harvested rainwater?

• Drinking water

• Flushing toilets

• Washing dishes

• Personal hygiene

What is the main consideration when installing a rainwater harvesting system?

• The amount of rainfall in the area

• The type of roof material

• The size of the roof area

• The demand for harvested water

What is the purpose of the in-line filter in a rainwater harvesting system?

• To remove debris such as leaves

• To increase the flow of water to the storage tank

• To prevent the growth of bacteria

• To add nutrients to the harvested water

What is the risk associated with using certain roof materials for rainwater harvesting?

• Improved water quality

• Reduced debris in the harvested water

• Increased water flow

• Potential health risk