Cold water level 2

What is the maximum depth a water main service pipe should be laid at?

• 750mm

• 1250mm

• 1350mm

• 1650

Fluid category 1 represents:

• Serious health risk

• significant health risk

• slight health risk

• no health risk

Which one of the following water pipes connects the local main to the water undertaker’s stop valve?

• distribution pipe

• communication pipe

• feed pipe

• 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 backflow 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

• Double check valve

The plastic medium density supply pipe, which is coloured blue, is manufactured from which one of the following materials?

• Polyethylene

• Polystyrene

• Polypropylene

• Polybutylene

The water regulations state that a mixer tap that 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 on both hot and cold supplies

• AUK 2 air gap

• AUK 3 air gap

Which one of the following is the minimum depth a water main service should be laid?

• 1350mm

• 760mm

• 750mm

• 1160mm

If a hand basin has submerged taps, which one of the following back flow prevention devices does the water regulations say must be installed?

• Overflow

• Single check valve

• Double check valve

• AUK 3 air gap

Which one of the following connections to the CWSC must be screened?

• Cold supply pipe

• Cold feed pipe

• Warning pipe

• Cold distribution pipe