Flush Gordon

What is the diameter of a under sink waste disposal unit

• 32mm

• 40mm

• 50mm

• 90mm

What type of collar is used when a soil vent pipe penetrates a ceiling?

• Venturi Collar

• Intumescent Collar

• Solvent Weld Collar

• Water Proof Collar

What does QWW stand for?

• Frequency of use of a specific appliance

• Air admittance valve

• Litres per second

• Improved effluent quality for existing works

What is the maximum losing before an AVV should be installed?

What is the maximum pipe length of a 40mm waste pipe?

• 1.7m

• 1.1m

• 3m

• 6m

What is the building regulation for sanitary accommodation?

How long can 50mm waste run on a primary vented system

• 3m

• 1.7m

• 6m

• 4m

What is the gravity ratio of the fall on a macerator

• 1 in 20

• 1 in 100

• 1 in 50

• 1 in 40

What is the BS number for AVV (air admittance valves?

• BS EN 12360

• BS EN 12830

• BS EN 12380

• BS EN 12330

What size fuse is needed for a sink waste disposal unit?

• 3

• 5

• 30

• 10