305 PP4

What size pipework is usually required for bath taps?

• 10mm

• 15mm

• 22mm

• 25mm

Since 6 April 2010, what temperature must be avoided in baths in new dwellings?

• 45ºC

• 48ºC

• 55ºC

• 50ºC

What type of connection is usually used for washbasins?

• 25mm pipe

• 20mm pipe

• 15mm pipe

• 10mm pipe

How can backflow and back siphonage be prevented?

• Mechanical backflow prevention device

• Physical air gap

• Both A and B

• None of the above

What is required to be installed if the sink were filled to its spillover level and contaminated water could mix with potable water?

• Mechanical backflow prevention device

• Single check valves

• Physical air gap

• Double check valves

What is the standard size of pipework for a shower?

• 10mm

• 15mm

• 20mm

• 25mm

What device is required to prevent hot water from a bath mixing with cold water in the supply?

• Double check valves

• Single check valves

• Mechanical backflow prevention device

• Physical air gap

What is the maximum temperature for hot water in a kitchen sink in a domestic property as per regulations?

• 45ºC

• 50ºC

• 55ºC

• 60ºC