Page 156 - 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 Which of the following would be the most suitable masonry drill bit to use
to make a hole in brickwork for a brown plastic plug?
a 5.5 mm HSS bit
b 7.0 mm HSS bit
c 5.5 mm SDS bit
d 7.0 mm SDS bit
2 What is the purpose of the tool shown below?

a To install a sacrificial anode
b To remove an immersion heater

c To remove a tap back-nut
d To tighten a compression nut
3 Which of the following is the British Standard for the manufacture of
copper pipes used in the plumbing and heating industry?
a BS EN 806
b BS 1710
c BS 1212
d BS EN 1057
4 What is the minimum total length of pipe required to machine bend
15 mm copper pipe to 90°?
a 60 mm
b 95 mm
c 100 mm
d 115 mm
5 LCS pipe is given a colour band to indicate its grade. What grade is
indicated by a blue band?
a Light
b Medium

c Heavy
6 Which of the following plastic pipe materials is commonly used for the
distribution of underground mains cold water supplies?
a Polybutylene

b ABS

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