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Worksheets8202 Level 3 Drainage 2
Total questions: 15
Worksheet time: 8mins
Which of these should be included in a visual inspection? Select all that apply
Check pipework, components and appliances
Ensure adequate access and test points
Confirm energy supplies are isolated
Pump up manometer
What letter represents frequency factor in stack sizing?
Qww
F
K
DU
What represents waste water flow rate in stack sizing?
G
K
DU
Qww
In relation to stack sizing, what does DU stand for?
Don't Use
Discharge Units
Drain Units
Drain Underground
In domestic situations, what is the most common stack size?
80mm
150mm
125mm
100mm
Which standard outlines the minimum space requirements for each sanitary appliance?
Building regs doc M
BS EN 806
BS 6465
BS 8000
According to BS EN 12056, what should be fitted when a pipe goes through a ceiling or floor to another property?
Non return valve
AAV
Water trap
Intumescent collar
When carrying out a soundness test, what level should the water in the gauge be at?
38mm
40mm
32mm
3mm
When doing a soundness test, how long do you need to test for?
15 mins
1 hour
3 mins
2 mins
What testing instrument is used for a soundness test?
Medium
Manometer
Multimeter
Analyser
Which test checks that trap seal depth is maintained?
Leak test
Tightness Test
Soundness Test
Performance Test
What is the minimum trap seal depth permitted after testing?
75mm
32mm
50mm
25mm
How many times should a performance test be carried out?
3 times
Once
Twice
4 Times
What type of trap seal loss is this?
Induced siphonage
Self siphonage
Wavering out
Capillary action
What type of trap seal loss is this?
Evaporation
Compression
Induced siphonage
Self siphonage
