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WorksheetsSanitation Systems QuizL3P2U9,1.10
Total questions: 9
Worksheet time: 5mins
What are the three methods of below ground drainage that can be used to discharge water from sanitary appliances?
The separate system, The combined system, The integrated system
The separate system, The partially separate system, The integrated system
The separate system, The partially separate system, The combined system
The combined system, The partially combined system, The integrated system
What is the main problem with the separate system of below ground drainage?
Possibility of contaminating a water course with raw sewage if the wrong connections to the system are made.
System planning can be troublesome.
Foul water drains are not flushed through during heavy rainfall.
It is extremely expensive to install.
What is another name for the partially separate system?
The separate system
The integrated system
The partially combined system
The combined system
What is one of the main problems with the combined system of below ground drainage?
Foul water drains are not flushed through during heavy rainfall.
System planning can be troublesome.
It is extremely expensive to install.
During periods of heavy rain, the drainage system can become flooded.
What is the purpose of a soakaway drain?
To disperse rainwater run off from roof areas
To discharge waste water from sanitary appliances
To treat waste water before discharging it into the drainage system
To store rainwater for later use
What is the design ratio for small soakaways serving 25m2 or less of roof area?
15mm rainfall in 20 minutes
10mm rainfall in 5 minutes
20mm rainfall in 15 minutes
5mm rainfall in 10 minutes
Where should soakaways not be sited?
Within 2.5 m of a building
Where the water table is high
Near a drainage field
All of the above
What should be referenced for soakaways greater than 25m2?
BS EN 752 part 4
Water Regulations
Building Regulations
Approved Document H
What is the main problem with the partially separate system of below ground drainage?
Possibility of contaminating a water course with raw sewage if the wrong connections to the system are made.
Foul water drains are not flushed through during heavy rainfall.
System planning can be troublesome.
It is extremely expensive to install.
