Central Heating revision | 6035

Identify what type of system is shown here.

• C plan plus

• Semi gravity system

• Unvented system

• Full gravity pumped system

To conform with European standard, all radiators manufacture must comply with:

• BS 4422

• BS 6700

• BS EN 442

• BS EN 104

The type of system shown can be identified as?

• W-plan system

• S-plan system

• Y-plan system

• Combination boiler system

On a three port mid-position valve, what does port 'A' supply?

• The boiler

• Central heating circuit

• F&E cistern

• Hot water circuit

The most common arrangement of radiator valve is:

• BBOE

• TBOE

• TBSE

• TTOE

The type of radiator shown here is?

• Double panel with single convector

• Single panel with double convector

• Double panel

• Single panel with single convector

Dependant of the skirting, what is the typical height that you should install radiators from floor level?

• 100mm

• 150mm

• 200mm

• 250mm

The symbol shown here can be identified as?

• Single check valve

• Double check valve

• Service valve

• Circulator

How does the component circled here work?

• Filling loop - Allows the boiler to be topped up when the pressure has dropped

• Pressure relief valve - Relieves the system of any build-up of pressure

• Bypass valve - Allows a flow of water through a boiler to reduce the chance of over-heating

• Automatic air vent - Allows the air within the system to be released through all high points

The diagram shown can be identified as?

• Unvented system

• Semi gravity system

• Combination boiler

• Fully pumped system