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Worksheets6035 | Drainage systems | LO1.1
Total questions: 13
Worksheet time: 7mins
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
The purpose of an intumescent collar is:
Clipping the interval soil pipe preventing water hammering
Restricting flames and smoke from travelling from one area to another
Temporary fixes which prevents foul smells from exiting the soil pipe
The use of a waste manifold would be:
External, at the base of the soil stack
Internal, commercial kitchens
Internal, bathrooms
Internal, at the base of the soil stack
To allow for clearing blockages, access should be provided:
At every appliance
At every connection to the soil stack
After the long radius bend
Above the highest appliance
