12.1 Domestic Heating Systems Quiz

What are the factors related to thermal comfort in domestic dwellings?

• Air temperature, mean radiant temperature, relative humidity, air velocity

• Air pressure, mean radiant temperature, relative humidity, air density

• Air temperature, mean radiant temperature, surface tension, air velocity

• Air temperature, surface tension, relative humidity, air density

What is one benefit of using a hydronic heating system in buildings?

• It increases air pressure

• It prevents surface condensation and mold growth

• It decreases air velocity

• It increases surface tension

What is the primary function of a combi (combination) boiler?

• To store large amounts of water

• To provide instantaneous hot water and heat

• To cool down the house

• To generate electricity

How do combi boilers operate?

• By using solar panels

• With a pressurised system utilising a heat exchanger

• By burning coal

• Through wind energy

What type of dwellings are combi systems suitable for?

• Large houses with multiple bathrooms

• Smaller dwellings with one bathroom and a cloakroom/toilet

• Industrial buildings

• High-rise apartments

What type of heating system is usually used in combi systems?

• Single-pipe system

• Three-pipe system

• Two-pipe parallel return system

• Four-pipe system

How is hot water heated in a combi system?

• By storing it in a tank

• Through a plate heat exchanger

• Using solar panels

• By electric heaters

What is a limitation of combi boilers?

• High energy consumption

• High installation cost

• Low flow rate

• Complex maintenance

What is one benefit of a combi boiler?

• Constant instantaneous hot water

• Requires a large storage cylinder

• Limited control over heating

• High energy loss

How does a combi boiler prevent energy loss?

• By using a storage cylinder

• By eliminating the need for a storage cylinder

• By using a large water tank

• By requiring constant maintenance