Unit 208 – CH #1

What is the primary purpose of a central heating system?

• To provide cooling to a building

• To provide hot water for domestic use

• To heat air and circulate it throughout a building

• To heat water and distribute it to radiators

Which of the following is the most common energy source for central heating systems?

• Solar power

• Electricity

• Gas

• Coal

Which component is used to circulate hot water in a wet central heating system?

• Boiler

• Pump

• Radiator

• Thermostat

What is the role of a thermostat in a central heating system?

• To store hot water

• To circulate hot air

• To monitor and control the temperature

• To filter water

In a central heating system, what is the primary function of the heat emitters?

• To filter water

• To distribute heat to the rooms

• To circulate hot water

• To store fuel

Which of the following is a common fuel type for a boiler in a central heating system?

• Wood

• Gas

• Oil

• All of the above

What does the acronym ‘S-plan’ refer to in central heating systems?

• A type of boiler

• A system of pipework and controls

• A type of radiator

• A water filter system

What is the function of a pressure relief valve in a heating system?

• To regulate the pressure of the water in the system

• To prevent hot water from flowing out of the system

• To reduce the power of the boiler

• To increase the water flow rate

What does the expansion vessel in a central heating system do?

• Absorbs air in the system

• Allows for the expansion of water as it heats

• Increases the flow of water

• Controls the temperature of the water

Which of the following is a common problem with central heating systems?

• Leaking radiators

• Noisy pipes

• Airlocks

• All of the above