WorksheetsCold Water Systems LO1
Total questions: 15
Worksheet time: 8mins
WRAS stands for?
Water Regulations Application Service
Water Regulations Advisory Service
Water Regulations Advisory Scheme
Water Regulations Arbitration Site
When the treated water leaves the treatment plant the diameter of pipe is 600mm. But what size diameter is the MDPE pipe at the "local mains"?
15mm
22mm
25mm
28mm
The Water Regulations 1999 were introduced to encourage the; waste, undue consumption, misuse, contamination and erroneous measurement of water
True
False
What is a ferrule?
An iron measuring device
A fitting used to connect to a water main
A metal containing iron
From the following, select the option that is not a source of surface water.
Artisan wells
Lakes
Reserviors
Streams
Who has responsibility for repairing and maintaining the Service pipe?
Local authority
Property owner
Water undertaker
Government
Very soft water has CO2 added to it
True
False
In the water treatment process, what is filtration?
Where the water flows over a graded sand bed
Where water flows through a paper screen
Where water flows over marble
Where water is allowed to fill a cistern to the top
At what temperature does temporary hard water begin to form limescale?
55°C
65°C
85°C
100°C
The chemical compound for calcium carbonate is CaCO3.
True
False
Which type of water is of an acidic nature and causes problems to plumbing systems through electrolytic corrosion?
Permanent hard water
Temporary hard water
Neutral water
Soft water
Who has responsibility for repairing and maintaining the Communication pipe?
Local authority
Property owner
Government
Water undertaker
Which method is used to treat very hard water in plumbing systems?
Galvanic cell
Base exchange water softener
Chemical dosing
Electromagnetic waves
Which type of water filters through limestone and chalk?
Very soft water
Soft water
Permanent hard water
Temporary hard water
Fill the gap: Typically any water that is _____________ needs treating.
Less than 50 PPMCaCO3
Less than 100 PPMCaCO3
More than 100 PPMCaCO3
More than 200 PPMCaCO3
