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QUESTION 2
(a) Describe how pipes in a large underground water main are prevented from moving at bends and
junctions.
(2 marks)
(b) State THREE requirements that must be met when a water main is run in a trench with other
services.
1
2
3
(3 marks)
(c) State THREE requirements that must be met for the trenching and back-filling of a UPVC water
main.
1
2
3
(3 marks)
Total 8 marks