Cold Water Systems Quiz L2 2.3 LO

What size of rising main is usual for a small property using the direct cold water system?

• 15mm

• 20mm

• 10mm

• 25mm

What size of rising main is required when an unvented hot water storage system is installed in a property?

• 25mm

• 22mm

• 20mm

• 15mm

When both cold and hot water systems are supplied direct from a mains cold water supply, what effect will this have on the rising main we install?

• It decreases the pipe size

• It changes the material of the pipe

• It has no effect on the pipe size

• It increases the pipe size because of the flow rate required

Generally speaking, what size pipe is required supplying a bathroom installation on an indirect cold water system?

• 15mm

• 20mm

• 25mm

• 22mm

What is the name of the pipe that provides water to the cold feed cistern?

• Distribution pipework

• Hot water storage vessel

• Rising main

• Cold feed cistern