005 Cold Water Quiz

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

• 750 mm.

• 850 mm.

• 1250 mm.

• 1350 mm.

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

• 750 mm.

• 850 mm.

• 1250 mm.

• 1350 mm.

Fluid category 1 water represents

• no health hazard

• a slight health hazard

• a serious health hazard

• a significant health hazard.

Medium density blue supply pipe is manufactured from which one of the following materials?

• Polythene.

• Polybutylene.

• Polyethylene.

• Polypropylene.

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

• The feed pipe.

• The service pipe.

• The distribution pipe.

• The communication pipe.

A cold water storage cistern base must be supported

• with ply board

• on four bearers

• on three bearers

• across the whole of its base

Which one of the following backflow prevention devices should be installed on a supply to a hose union bib tap, according to the water regulations?

• Air gap

• Single check valve

• Double check valve

• Fullway gate valve

The water regulations state that a combination tap which allows the hot and cold water to mix in the body of the tap with unbalanced pressures must have

• an AUK2 air gap

• an AUK3 air gap

• single check valves installed in the hot and cold service pipework

• double check valves installed in the hot and cold service pipework

The water regulations state that a washbasin with submerged tap outlets in a domestic situation should be fitted with which one of the following backflow prevention devices?

• An AUK2 air gap

• An AUK3 air gap

• Single check valves installed in the hot and cold service pipework

• Double check valves installed in the hot and cold service pipework

Which one of the following pipe connections to a cold water storage cistern must be screened?

• Cold feed pipe

• Distribution pipe

• Warning pipe

• Cold supply pipe