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What is the primary function of a micro combined heat and power (mCHP) system?

• To solely supply electricity

• To provide heating and hot water without electricity

• To simultaneously supply heating, hot water, and electricity

• To generate electricity by using excess heat

How does an mCHP boiler achieve its efficiencies compared to a condensing boiler?

• By using a different fuel source

• By producing more heat than a condensing boiler

• By utilizing heat and electricity production simultaneously

• By using a different combustion process

What proportion of the typical mCHP system's energy is allocated for heating, electricity, and other purposes?

• 90% for heating, 5% for electricity, and 5% for other purposes

• 80% for heating, 15% for electricity, and 5% out the flue

• 70% for heating, 20% for electricity, and 10% for other purposes

• 60% for heating, 25% for electricity, and 15% for other purposes

What term describes the system's approach where the majority of the energy generated is used for heating?

• Heat-driven system

• Electricity-centric system

• Heat-led system

• Balanced energy system

How does the Stirling engine operate within the mCHP system?

• Through explosive combustion

• By expansion and contraction of internal gases

• By steam generation

• Through direct electrical input

What role does the supplementary burner play in the mCHP system?

• It pre-heats the system water

• It fires up the Stirling engine

• It increases the system's electricity output

• It cools down the flue gases

What is one effect of increasing population levels on water supply systems?

• Decreased demand for water
• No impact on water supply systems
• Improved water quality
• Increased demand for water

What purposes are common for the use of potable water in properties?

• Watering plants and gardens
• Drinking, cooking, cleaning, and bathing
• Flushing toilets
• Filling swimming pools

Which methods are commonly used for water conservation in the UK?

• a) Water desalination and distillation

• b) Rainwater harvesting and greywater reuse

• c) Water filtration and reverse osmosis

• d) Water softening and chlorination

What purpose does rainwater harvesting and greywater reuse serve in water conservation?

• Conserving water for future use
• Polluting water sources
• Increasing water usage
• Reduce demand on the mains supply