Legislation and Standards

All drainage systems must comply with Building Regulations, as they are the statutory requirements in ________ and Wales (part N in Northern Ireland).

• England

• Scotland

• Ireland

• France

List some online resources where you can find more information about legislation and standards related to good workmanship.

• Government websites

• Online forums

• Social media platforms

• Personal blogs

The function of the soil pipe in a soil stack system is to:

• transport waste to the sewer

• provide ventilation

• supply water

• support the structure

According to compliance, what must the waste pipe diameter and gradient maintain after an appliance has been used?

• A consistent flow rate

• A specific diameter and gradient

• A reduced water pressure

• An increased water temperature

According to compliance, how should air admittance valves be sized when used to vent drainage systems?

• They should be the same size as the pipe they are venting.

• They should be one size larger than the pipe they are venting.

• They should be one size smaller than the pipe they are venting.

• Size does not matter as long as they fit.

What is the most common type of domestic stack?

• Secondary ventilated stack

• Primary ventilated stack

• Tertiary ventilated stack

• None of the above

Fill in the blank: The self-cleaning velocity means that the liquid carries the solids as it flows, so reducing the risk of ________.

• blockage

• overflow

• evaporation

• condensation

What is the waste size (mm) for a Sink?

• 40

• 32

• 50

• 25

Junior WCs are often installed at ______ schools and infant schools.

• nursery

• primary

• secondary

• high

If an installation exceeds the maximum length stated, what should the next pipe size be for a 32mm pipe?

• 32mm

• 40mm

• 50mm