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What is the position marked by the arrow in the drawing called?

• Pressure point

• Hot zone

• Cold spot

• Neutral point

Which heating system contains 3 x 2 port motorized valves?

• C Plan

• W Plan

• Y Plan

• S Plan Plus

Where should TRVs be fitted?

• Only in the bathroom

• Only in the kitchen

• Only in the living room

• Every room except where a room thermostat is installed

Underfloor heating is usually used with which technology?

• Solar power

• Gas heating

• Heat pump technology

• Electric radiators

Where should drain valves be positioned?

• Only on the radiators

• At all low points and all pipe drops

• At the center of the system

• At all high points on heating systems

What material is generally used for plastic pressure pipe?

• Copper

• Steel

• Polybutylene or cross-matched polytheylene

• Aluminum

What is the preferred pipe material for many new build properties?

• PVC pipe

• Copper tube

• Low Carbon Steel pipe

• Plastic pressure pipe

Where is the expansion vessel usually fitted when using a traditional boiler with a sealed heating system arrangement?

• On the flow pipe

• On the vent pipe

• On the return pipe

• On the suction side of the pump

What is the heart of the central heating system?

• Circulating Pump

• Motorised valves

• Expansion vessel

• Boiler

What is the purpose of a boiler jig?

• To test the pressure of the system

• To mount the boiler on the wall

• To flush the pipework with water

• To make pipework connections before attaching the boiler unit