WorksheetsCold Water Systems LO2
Total questions: 13
Worksheet time: 7mins
When installing an incoming mains, the pipe should be laid between:
500mm and 1200mm
800mm and 1500mm
750mm and 1350mm
1000mm and 2000mm
What colour is MDPE?
Black
Blue
Red
Yellow
What is the minimum size pipe modern properties are supplied with?
15mm
22mm
25mm
28mm
At which point on a cold water supply system is regulated under the Water Regulations?
From the ferrule
From the water treatment plant
From the Boundary stop valve
From the stop valve inside the property
All meters must be installed in a chamber located at the boundary of the property.
True
False
Due to MDPE degrading in sunlight, what is the maximum permitted length you can install above the finish floor level?
400mm
275mm
200mm
150mm
In accordance with the Water Regulations, where should the stop valve be located?
Inside the building, below floor level, as close as possible to the door
Inside the airing cupboard, as close as possible to the door
Outside the building, as close as possible to the property boundary
Inside the building, above floor level, as close as possible to the point of entry
Where must you install drain-offs in a plumbing system?
At every low point in the system
At every high point in the system
In areas out of sight to the homeowner
Just at the point of entry to the property
Where newer properties will typically have a 25mm MDPE service pipe, older properties will have either:
(Select 3)
20mm MDPE pipe
20mm copper pipe
20mm lead pipe
20mm LCS pipe
Select all correct options.
Grey water recycling is used on which appliances?
WC cisterns
Washing machines
Dishwashers
Basins
Grey water is considered as wholesome water.
True
False
The greywater and rainwater system must run separately from the main system to prevent?
System backflow
Contamination of wholesome water
Incorrect readings on the water meter
Buildup of limescale
Select from the following, the incorrect procedure to identifying which system a property has installed.
Isolate incoming mains, identify which outlets stop flowing
Identify any cisterns and their sizes in the loft
Ask the local authority for a detail drawing of the property
Record pressure readings at multiple outlets
