Phase 1 Sanitary systems checkpoint test

Where are the statutory requirements for the installation of drainage systems?

• BS 6700

• BS EN 12056

• Building regulations

• WRAS

Identify this type of stack system.

• Primary ventilated stack

• Secondary ventilated stack

• Ventilated discharge branch stack

• Stub stack

If a discharge branch has a gradient of 18mm per metre and the branch is 3 metres in length, what will the vertical drop distance be?

• 54mm

• 18mm

• 36mm

• 72mm

What is the purpose of the component shown, when installed at the base of the stack?

• To prevent evaporation

• To prevent backflow

• To prevent expansion

• To prevent compression

What is the maximum recommended length of a discharge pipe from a bath connected to a primary ventilated stack?

• 3 metres

• 4 metres

• 5 metres

• 6 metres

What is the maximum recommended length of a discharge pipe from a WC connected to a primary ventilated stack?

• 3 metres

• 4 metres

• 5 metres

• 6 metres

What is the maximum recommended length of a discharge pipe from an appliance with 50mm waste pipe connected to a primary ventilated stack?

• 3 metres

• 4 metres

• 5 metres

• 6 metres

What is the maximum recommended length of a discharge pipe from a basin connected to a primary ventilated stack?

• 3 metres

• 4 metres

• 1.7 meters

• 6 metres

According to building regulations, what is the recommended termination for a soil stack inside a building?

• Open ended

• Cowl

• Domical cage

• Air admittance valve

What is the minimum size of waste pipe allowed to be fitted to a wash basin?

• 32mm

• 40mm

• 50mm

• 100mm