Feed and Expansion Cistern Quiz

Where is the feed and expansion cistern commonly located in an open vented system?

• In the basement

• In the loft

• On the ground floor

• Outside the building

What is the main purpose of the feed and expansion cistern in the system?

• To cool the water

• To filter the water

• To allow the heated water to expand and operate at atmospheric pressure

• To increase water pressure

At what level should the base of the feed and expansion cistern be placed?

• Above the cold water storage cistern

• Below the cold water storage cistern

• At the same level as the cold water storage cistern

• At ground level

What is the common size and color of the feed and expansion (F&E) cistern?

• 18-litre, black

• 20-litre, white

• 15-litre, blue

• 22-litre, red

Where is the 15mm cold feed located in relation to the F&E cistern?

• On top of the F&E

• To the side of the F&E

• Below the F&E

• Inside the F&E

What is the minimum height the 22mm open vent must rise above the water level?

• 300mm

• 450mm

• 500mm

• 600mm

How far above the circulator should the F&E be located?

• 0.5 metres

• 1 metre

• 1.5 metres

• 2 metres

What is the purpose of installing a service valve prior to the FOV in the F&E system?

• To allow for maintenance

• To increase water pressure

• To reduce water temperature

• To prevent water leakage

At what level should the water be set by the FOV in the cistern?

• High level, above the cold feed exit

• Low level, just covering the cold feed exit

• Mid level, halfway up the cistern

• No specific level is required

By what percentage does the system water expand when heated?

• 2%

• 4%

• 6%

• 8%