PP1 Central heating Phase 1

What is the main purpose of central heating systems?

• To cool down the rooms

• To provide thermal comfort within a property

• To light up the property

• To decorate the rooms

How does central heating differ from heating with an open fire?

• Central heating can only heat one room

• An open fire can heat every room in the property

• Central heating can heat every room in the property

• An open fire uses water to heat the room

What does full central heating allow in a property?

• Heating only the selected rooms to a specific temperature

• Heating all rooms to different temperatures at the same time

• Heating all rooms to the same temperature at the same time

• Heating the outside areas of the property

What is the typical range of room temperatures when using central heating systems?

• 5°C to 15°C

• 10°C to 20°C

• 18°C to 22°C

• 25°C to 30°C

Which system is now preferred over an open fire for heating up the whole property?

• Solar heating system

• Central heating

• Electric heating

• Wood burning system

What type of central heating system is fed from a feed and expansion cistern located at high level?

• Sealed, pressurised systems

• Low pressure, open vented systems

• Electric heating systems

• Solar heating systems

Which type of central heating system incorporates an expansion vessel to stabilize the pressure within the system?

• Low pressure, open vented systems

• Solar heating systems

• Sealed, pressurised systems

• Electric heating systems

What is a feature of fully pumped systems?

• Uses two two-port motorised valves

• Operates under high pressure

• Uses external expansion vessel

• Has a reversed return system

What is the diameter range of primary pipework usually associated with gravity or semi-gravity heating systems?

• 10-20mm

• 28-35mm

• 40-50mm

• 50-60mm

Which type of heating system uses convection currents to circulate the water around the pipework?

• Forced air system

• Gravity or semi-gravity system

• Electric heating system

• Solar heating system