Page 530 - 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

5 Which one of the three images below shows the best relative positions
of the pump, cold feed and open vent to allow for a positive system
pressure while minimising pumping over?

A B C

a A
b B
c C
6 Which type of boiler utilises increased efficiency by recovering latent heat
from the flue gases?
a Combination boiler
b Traditional boiler
c Condensing boiler
d System boiler
7 What is the recommended installation height from the floor for a radiator?
a 100 mm
b 150 mm
c 200 mm

d 250 mm
8 Within a sealed heating system, which component accommodates the
expansion of water during heating?

a Feed and expansion cistern
b Cold feed and expansion pipe
c Expansion bellows
d Expansion vessel
9 Which of the following should be provided to a central heating system
within a dwelling that has a useable floor space greater than 150 m ?
2
a Independent time-controlled zones
b A gravity hot water circuit
c Modular boiler arrangement
d A low loss header

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