6035 | Drainage systems | LO1.1

The section within the red markings is known as:

• Soil pipe

• Vent pipe

• Stub stack

• Secondary ventilated stack

Which two regulations must all drainage systems comply with within England and Wales?

• Part L

• Part G

• Part H

• Part P

The British Standard number for sanitary installations is:

• BS 6700

• BS 4488

• BS EN 442

• BS 6465

In order to be compliant with Part H, the depth of a water seal in a trap should not be less than:

• 25mm

• 40mm

• 50mm

• 75mm

The maximum gradient of all discharge branches is:

• 5°

• 4°

• 2.5°

• 1.8°

The maximum length of pipe that a WC should be positioned from the primary ventilated stack is?

• 1.7m

• 3.0m

• 6.0m

• 10.0m

If a basin was placed further away than 1.7m from the primary stack, what action should be followed?

• Inform the customer that the job cannot be completed.

• Inform the local authority of a breach of Building Regulations Part H.

• Reposition the basin within the 1.7m tolerance.

• Replace the run of pipe for a 40mm pipe.

If the situation arises where you have multiple appliances connected to a single discharge pipe, what size should the pipe circled be?

• 32mm

• 40mm

• 50mm

• 75mm

What is the lowest connection to the soil stack from the drain invert level if the property is a low-rise building?

• 100mm

• 450mm

• 750mm

• 1000mm

To prevent crossflow, what is the minimum distance allowed to install another connection is?

• 200mm

• 150mm

• 100mm

• 0mm