Central Heating

What does a fully pumped system use to circulate heated water?

• Natural convection

• A pump

• Air pressure

• Gravity

Which of the following is not compliant with Building Regulations part L?

• C plan two pipe semi gravity

• Fully pumped system

• Two pipe semi gravity

• Sealed system

What is the primary purpose of central heating in a property?

• To provide ventilation

• To provide thermal comfort

• To conserve water

• To reduce electricity usage

Which system uses a feed and expansion cistern located at high level?

• Sealed, pressurised systems

• Low pressure, open vented systems

• Fully pumped systems

• Pumped central heating

What is a disadvantage of a one pipe gravity system?

• High installation cost

• Each radiator progressively cools down

• Requires a large boiler

• Difficult to maintain

What is the primary function of the open vent pipe in a central heating system?

• To allow water to enter the system

• To provide a safety outlet if the system overheats

• To regulate the temperature of the water

• To prevent corrosion

Where is the feed and expansion cistern commonly located?

• In the kitchen

• In the basement

• In the loft

• In the airing cupboard

What is the typical size of the open vent pipe in a central heating system?

• 15mm

• 18mm

• 22mm

• 25mm

What component is used to balance a central heating system?

• Thermostatic radiator valve

• Radiator key

• Lock shield valve

• Automatic air release valve

What is the maximum temperature commonly set for a cylinder thermostat?

• 40°C

• 50°C

• 60°C

• 70°C