Page 354 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)

The City & Guilds Textbook: Plumbing Book 1

Test your knowledge

1 How many UK fluid categories are there?
a 4
b 5

c 6
d 7
2 Water within a food preparation area such as a kitchen sink falls within
which UK fluid category?

a 4
b 5
c 6
d 7
3 Waste water collected from baths, showers and washing machines that is
then reused for WC flushing is known as:
a Rainwater harvesting
b Wholesome water
c Black water
d Grey water
4 With regard to water treatment, what does the passage below describe?
‘... designed to slow down the water velocity to allow the solids that the
water contains to sink to the bottom and settle under gravity. It may also
be used to reduce turbidity.’
a Sedimentation
b Filtration
c Sterilisation
d Chlorination
5 Which document is split into five parts and gives the specification for
installations inside the buildings conveying water for human consumption?
a BS EN 806
b BS 6700
c The Water Supply (Water Fittings) Regulations
d The Private Water Supplies Regulations
6 What is the minimum supply pipe size to a modern dwelling?

a 20 mm
b 25 mm
c 32 mm
d 40 mm

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