Cold Water Systems Quiz L2 2.4 Part5 LO

What is the main purpose of a Float Operated Valve (FoV) manufactured to BS1212?

• To regulate the temperature of the water

• To increase the water pressure

• To control the flow of water into cisterns

• To filter impurities from the water

Which type of FoV is instantly recognizable due to the piston being in the vertical position?

• Portsmouth pattern

• Diaphragm type (plastic)

• Croydon pattern

• Diaphragm type (brass)

What is the main difference between a B.S.1212 Part 1 and Part 2 FoV?

• The size of the rubber washer

• The position of the piston

• The color of the orifice

• The material used for manufacturing

A Torbeck valve is also known as what?

• Float valve

• Diaphragm valve

• Pressure valve

• Equilibrium valve

What are the benefits of an external water meter installation?

• Prevents illegal tampering with the water meter

• Reduces water pressure in the system

• Increases the risk of water contamination

• Allows for easy access to the building

Why is the drain off valve positioned above the water meter in internal installations?

• To increase the water pressure in the system

• To prevent water being drawn off without registering on the meter

• To reduce the risk of backflow contamination

• To allow for easy maintenance of the meter

What is the main disadvantage of a Portsmouth pattern FoV?

• Prone to backflow issues

• Not suitable for high pressure water

• Vulnerable to noise and water hammer

• Prohibited from new installations

Which type of FoV is made of plastic and is ideal for WC cisterns?

• Portsmouth pattern

• Croydon pattern

• Diaphragm type (brass)

• Diaphragm type (plastic)

What is the purpose of the Torbeck valve when it is in the closed position?

• Increases the water flow rate

• Equalizes pressure on both sides of the rubber washer

• Reduces the risk of water hammer

• Prevents water from freezing in the cistern

What type of FoV is no longer manufactured but may still be found in older, high level WC cisterns?

• Croydon pattern

• Diaphragm type (brass)

• Portsmouth pattern

• Diaphragm type (plastic)