Drainage power point 9 2025

Care needs to be taken with PVCu guttering because it is affected by some ________.

• wood preservatives and paints

• detergents and soaps

• mineral oils and greases

• cement and sand

Care needs to be taken with PVCu guttering because it has a high coefficient of ________ compared to other materials (0.00018), which means the gutter can buckle or dislocate.

• expansion

• friction

• adhesion

• compression

Care needs to be taken with PVCu guttering because it goes ________ in cold weather.

• brittle

• soft

• flexible

• sticky

Which rainwater system profile is a standard shape for domestic properties?

• Half round

• Square line

• Ogee

• Deep flow

Look at the image of the rainwater system component. Name this component:

• Half round 45º angle

• Square gutter union

• Round downpipe bracket

• Ogee stopend

What is the name of the rainwater system component shown in the image?

• Square line union

• Half round internal stop end

• Half round running outlet

What is the name of the rainwater system component shown in the image?

• Downpipe shoe

• Half round rafter bracket

• Gutter union

• Hopper head

What is the name of the rainwater system component shown in the image?

• Downpipe shoe

• Half round rafter bracket

• Gutter union

• Hopper head

Manufacturers build into their fittings a ______ expansion gap.

• 10mm

• 2mm

• 25mm

• 50mm

What is the purpose of the thermal expansion marks shown in the gutter installation diagram?

• To indicate where to cut the gutter

• To show the maximum expansion allowed

• To mark the position of the retaining clips

• To indicate the color of the gutter