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Worksheets6035 cold water revision
Total questions: 13
Worksheet time: 7mins
What is the maximum depth a water main service pipe should be laid at?
750mm
1,850mm
1,350mm
1,750mm
Fluid category 1 represents:
A serious health risk
A significant health risk
A slight health risk
No health risk
Which one of the following water
pipes connects the local main to the water undertaker’s stop valve?
The distribution pipe
The feed pipe
The communication pipe
The service pipe
A cold water storage cistern base
must be supported:
Over the whole of its base
Over at least three bearers
By using chipboard
Over the majority of its base
Which one of the following back flow
prevention devices must be
installed on a supply to a hose union bib tap, according to the Water Regulations?
AUK 2 air gap
Single check valve
Fullway gate vale
A double check valve
The plastic medium density supply pipe, which is blue, is manufactured from which of the following materials?
Polyethylene
Polystyrene
Polypropylene
Polybutylene
The Water Regulations state that a mixer tap which allows the hot and cold water to mix in the body of the tap with unbalanced pressures must have:
.
Double check valve on both hot and cold supplies
Single check valve of both hot and cold supplies
AUK 3 air gap.
AUK 2 air gap
If a hand basin has submerged
taps, which one of the following back flow prevention devices does the
Water Regulations say must be
installed?
Double check valve
AUK 3 air gap.
Overflow
Single check valve
When installing pipework in a
property, what must happen to all open-ended pipework if you leave the site?
Capped off with push fit.
Appliances must be fitted
Left alone
Labelled and taped
Which one of the following can
affect the pressure and flow rates to the incoming main to a property?
a. Peak demand periods
The size of the CWSC in the loft
The square metre floor area of the property
How close the water meter is to the property
The use of approved fittings,
WRAS approved, is because:
They are legal and avoid contamination
They are cheap and can be fitted easily
They come with a longer warrantee than other fittings
Their quality is not as good, but will work.
According to the Water Regulations,
where must a drain-off valve be
placed?
At every low point in the system
At every high pressure point in the system
At every high point in the system
At every low pressure point in the system
Which one of the following
connections to the CWSC must be
screened?
Cold supply pipe
Cold feed pipe
Warning pipe
Cold distribution pipe.
