unit 113 heating part 1

Describe the pipework materials and sizes used in Building Services Engineering (BSE) as discussed in this session.

• Copper and PVC, sizes 15mm to 100mm

• Steel and cast iron, sizes 50mm to 200mm

• PEX and HDPE, sizes 10mm to 50mm

• Brass and aluminum, sizes 20mm to 150mm

In a hydronic heating system, ______ is used to transfer heat from a boiler or heat generator to heat emitters throughout the building, such as radiators.

• water

• air

• electricity

• steam

What are the two categories of domestic central heating systems based on?

• The type of fuel used

• The way the system is filled with water and the pressure at which it operates

• The size of the system

• The location of the system

Fill in the blank: Sealed, pressurised central heating systems are fed direct from the mains cold water supply and incorporate an _______ to take up the expansion of water due to the water being heated.

• expansion vessel

• pressure gauge

• thermostat

• radiator

What is the pipework size range for a minibore central heating system?

• A) 8mm to 10mm

• B) 15mm to 35mm

• C) 20mm to 40mm

What is the pipework size range for a microbore central heating system?

• 8mm to 10mm

• 15mm to 35mm

• 20mm to 40mm

The water in the heating system contains a chemical known as an _______ that prevents the metals in the system being corroded by the water.

• inhibitor.

• catalyst.

• solvent.

• reactant.

What are the three main types of domestic boilers?

• Combi, System, and Conventional

• Electric, Gas, and Oil

• Single, Double, and Triple

• Steam, Hot Water, and Condensing

Which of the following is a type of domestic boiler?

• Combination boiler

• Electric boiler

• Gas boiler

• Solar boiler

Which type of boiler is shown in the image on the left?

• System boiler

• Combination boiler

• Traditional boiler

• Electric boiler