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WorksheetsUnit 09 – Sanitation systems – Phase 1 1.1
Total questions: 9
Worksheet time: 5mins
What are the three sections of sanitary pipework?
The wet pipe, the dry pipe, and the waste pipe
The primary stack, the secondary stack, and the branch stack
The main pipe, the secondary pipe, and the discharge pipe
The soil pipe, the vent pipe, and the waste pipe
Which type of stack is commonly used in domestic buildings?
Ventilated Branch Discharge Stack
Stub Stack
Secondary Ventilated Stack
Primary Ventilated Stack
What is the purpose of a secondary ventilated stack?
To connect appliances to the main stack
To carry waste away from the dwelling
To prevent positive and negative pressure fluctuations
To dispose of waste water from baths and sinks
In which situations would a ventilated branch discharge system be used?
In domestic buildings with closely grouped appliances
In high rise buildings with pressure fluctuations
In larger installations with many appliances
In small groups of appliances connected directly to a drain
What can be fitted to a stub stack to allow ventilation?
Vent Pipe
Water Trap
Waste Pipe
Air Admittance Valve
Which document sets the requirements for sanitary appliances?
Both of the above
British Standard BS EN 12056: 2000 pts 1 to 5
Approved Document H of the 2013 Building Regulations
None of the above
What is the minimum size of a ventilating pipe to any single appliance?
15mm
25mm
32mm
40mm
What is the maximum length of a washbasin waste pipe?
1.7m
3m
6m
10m
What is the minimum diameter of the main ventilation stack?
60mm
100mm
75mm
50mm
