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WorksheetsCold Water Systems Quiz L2 2.4 Part5 LO
Total questions: 10
Worksheet time: 5mins
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)
