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