Water Supply Regulations Quiz

The Water Supply (Water Fittings) Regulations 1999 lay down regulations which cover:

• All systems fed from the water undertaker’s supply only

• All systems fed from private water supplies only

• The installation of water fittings external to the building

• Are not legal requirements, but a guide to good practice

The recommended minimum diameter for gravity circulation pipework in a direct hot water system is:

• 15 mm

• 22 mm

• 28 mm

• 35 mm

Which one of the following plastic pipe materials is usually used for domestic hot and cold supply and distribution water pipework?

• Acrylonitrile Butadiene Styrene (ABS).

• Polybutylene.

• Unplasticised polyvinyl chloride (PVC – U).

• Polypropylene copolymer (PP).

Which one of the following should be positioned in either the bottom of the hot water storage cylinder, or in the cold feed pipe to the storage cylinder?

• Drain valve.

• Servicing valve.

• Automatic air release.

• A non-return valve.

Which one of the following hot water system components should be connected using flexible connections?

• Shower booster pump.

• Indirect hot water storage cylinder.

The hot draw-off distribution pipe connection from a hot water storage cylinder should be in which part of the cylinder and at what distance?

• top of the cylinder with 450mm draw off connection

• top third of the cylinder

• top of the cylinder

• bottom quarter of the cylinder

In a standard indirect hot water cylinder, the temperature of stored hot water is:

• equal at both the top and bottom of the cylinder

• lower at top of the cylinder than the bottom

• higher at the top of the cylinder than the bottom

• lower in the middle of the cylinder than the bottom

Hydraulic test procedures for rigid pipework systems routinely require a standing period to:

• allow all air within the system to reach the highest point within the system

• allow all water and pipework to reach the ambient temperature

• allow the water in the system to get into any dead ends of pipework

• permit the indicator needle on the test equipment pressure gauge to settle down

A record of the decommissioning of the hot water system would be most likely to be completed for:

• all Indirect Domestic Hot Water Systems

• all Direct Domestic Hot Water Systems

• all systems installed in dwellings

• a Domestic Hot Water System installed in industrial property

Which one of the following maintenance procedures requires the use of an approved voltage indicating device?

• Confirming the safe isolation of a shower pump.

• Measuring the flow and pressure of water at an outlet.

• Measuring how much electrolytic corrosion has occurred within a system.

• Measuring the temperature of water in a hot water storage cylinder.