Ph2 305 Cold Water Systems checkpoint test

An RPZ valve should be installed with: 

• an isolating valve upstream of the RPZ valve 

• an isolating valve downstream of the RPZ valve 

• an isolating valve both upstream and downstream of the RPZ valve 

• no isolating valves 

In which one of the following fluid categories does the domestic water from a washbasin fall? 

• Category 1 

• Category 2 

• Category 3 

• Category 4 

Under Regulation 5 of the Water Regulations, the water undertaker must be informed when which one of the following operations is carried out? 

• Installation of a pump drawing more than 12 litres per minute 

• Installation of a bidet without an ascending spray or flexible hose 

• Installation of a bath with a capacity of fewer than 230 litres 

• Installation of an RPZ valve to protect against a category 2 fluid 

What is the component labelled A in the diagram below? 

• Expansion cistern 

• Break cistern 

• Duplicate pumps 

• Circulating pumps 

The type of non-mechanical backflow prevention used on a domestic washbasin is known as:  

• AUK 1 

• AUK 2 

• AUK 3 

• AUK 4 

Which of the following items of legislation covers the requirements for the hydraulic testing of cold water pipe lines? 

• Water Byelaws (England 2004) 

• British Standards 5449 

• Water Supply (Water Fittings) Regulations 1999 

• Building Regulations Part G (P in Northern Ireland) 

Which one of the following mechanical backflow prevention devices would be used when installing a replacement hose union bib tap? 

• BA

• HUK1

• HA

• HC

Which one of the following types of air gap provides suitable backflow protection for the taps in a washbasin installed in a hospital? 

• AB air gap 

• AUK 1 air gap 

• AUK 2 air gap 

• AUK 3 air gap 

Service valves should be installed in which one of the following locations? 

• On the cold feed to the primary circuit 

• On the cold feed pipe from the cold water storage cistern 

• Immediately after the internal stop valve 

• Immediately after the external stop valve 

Metallic cold water systems should be capable of withstanding an internal pressure of: 

• the maximum potential operating pressure 

• 1.5 times the maximum potential operating pressure 

• 2 times the maximum potential operating pressure 

• 3 times the maximum potential operating pressure