L3 P2 central heating 1

What is the main purpose of central heating?

• To heat water for domestic use

• To generate electricity

• To cool down the interiors during summer

• To provide thermal comfort within a property

What temperature must full central heating systems reach even when the outside temperature is -10C?

• The temperature set by the customer

• 0 degrees Celsius

• 5 degrees Celsius

• 10 degrees Celsius

What type of central heating system allows heating in selected rooms to a specific temperature?

• Selective central heating

• Passive heating

• Full central heating

• Background central heating

What is used to transport heat throughout the building in all central heating systems?

• Oil

• Electricity

• Water

• Air

Which type of system is fed directly from the mains cold water?

• Sealed, pressurised systems

• Low pressure, open vented systems

• Gravity systems

• Combination boiler systems

What disadvantage does the one-pipe gravity system have?

• High maintenance

• Requires large space for installation

• Uncontrolled room temperature

• High installation costs

What advantage does the two-pipe semi gravity system have over the one-pipe system?

• All heat emitters reach the same temperature

• Cheaper to install

• No need for a pump

• Uses less water

What is a characteristic of a fully pumped system?

• Uses a pump to circulate heated water

• Cannot use natural gas as fuel

• Operates solely on gravity

• Does not require a thermostat

What is a disadvantage of the two-pipe semi-gravity with heat sink system?

• Is the most modern system available

• Does not require any safety controls

• Can be expensive

• Uses air to transport heat

Which system arrangement is no longer installed due to non-compliance with Part L of the Building Regulations?

• Sealed pressurised systems

• Fully pumped systems

• One-pipe gravity system

• Two-pipe semi gravity system