Question 4
(4) (a) Sketch three types of trap for sanitary appliances.
(b) Define the following terms used in drainage system:
(i) drain;
(ii) bend.
(c) List four factors that determine the choice of pipes used for plumbing work.
Observation
Most of the candidates responded correctly to this question. Some had difficulty in 4(b). the required responses is given below:
Drain – Any pipe which conveys water or water bound-waste in a building drainage system.
Bend – These are the changes of direction on a drainage system.