Pipe Sizing and Plumbing Assessment

Which British Standard is linked with BS EN 8558?

• BS 6700

• BS 8000

• BS 9000

• BS 7000

Which system includes a combination boiler?

• Indirect system

• Direct system

• Both indirect and direct systems

• Neither indirect nor direct systems

Which system is likely to have a cold water supply off the mains to the kitchen sink?

• Indirect system

• Direct system

• Both indirect and direct systems

• Neither indirect nor direct systems

Which system is more likely to include an unvented cylinder?

• Indirect system

• Direct system

• Both indirect and direct systems

• Neither indirect nor direct systems

What is the consequence of not considering the demand from one outlet on another outlet?

• It may affect the flow of water from another outlet.

• It will increase the water temperature.

• It will reduce the installation time.

• It will decrease the water quality.

What is the maximum velocity for small bore connections of limited length supplied as parts of combination tap assemblies?

• 0.3 m/s

• 3.0 m/s

• 1.5 m/s

• The maximum velocity does not apply

According to the 'rule of thumb', what pressure is associated with 22 or 28mm pipes on distribution?

• Low pressure

• Medium pressure

• High pressure

• No pressure

What is the typical size range for distribution pipes according to the 'rule of thumb'?

• 10-20mm

• 15-22mm

• 20-25mm

• 22-28mm

What is the main focus of Presentation 13, Unit 331 in plumbing?

• Pipe color coding

• Pipe material selection

• Pipe size calculation for complex systems

• Pipe length measurement

Which appliance has a loading unit of 10?

• Shower

• Bath tap ¾ – DN 20

• Sink tap ¾ – DN 20

• Bath tap 1 – DN 25