Feed and Expansion (F&E) Cistern Quiz

What is the main purpose of the Feed and Expansion (F&E) cistern in an open vented system?

• To store cold water for household use

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

• To filter impurities from the water

• To heat the water in the system

Where is the Feed and Expansion (F&E) cistern commonly located in an open vented system?

• In the basement

• In the kitchen

• In the loft

• In the garden

At what level should the base of the Feed and Expansion (F&E) 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 function of the Feed and Expansion (F&E) cistern in an open vented system?

• To fill the system up with water

• To drain the system

• To cool the water in the system

• To circulate the water in the system

What is the common capacity of the Feed and Expansion (F&E) cistern?

• 10 litres

• 18 litres

• 22 litres

• 15 litres

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

• Above the F&E

• Below the F&E

• To the side of the F&E

• Inside the F&E

What is the minimum height the 22mm open vent from the primaries 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 does the rising main supply in the F&E system?

• BS 1212 FOV

• Cold feed exit

• Service valve

• Expansion tank

Why must there be a service valve installed prior to the FOV?

• To allow for maintenance

• To increase water pressure

• To reduce water temperature

• To prevent water leakage