Plumbing and Pipe Fitting 2, WASSCE (SC), 2019

Question 4

(a)
      (i)         Define the term rain cycle.
      (ii)        Use a sketch to illustrate the rain cycle.

(b)   
      (i)         List three classes of water pipes based on uses.
      (ii)        Using a neat sketch, describe how the classes of pipes are used for   water supply into a building.

Observation

Most of the candidates had difficulty answering this question. They could not give technical definition and explanations of the terms required.

The required responses to question 4 are given below.

(a)
    (i)     DEFINITION OF RAIN CIRCLE
              Rain cycle is the repeated process of evaporation and condensation of earth’s surface water which results in rainfall.                   
     (ii) A sketch illustrating the rain cycle:

(b) (i)   CLASSES OF WATER PIPES BASED ON THEIR USES
- water mains;
- service pipes;
-distribution pipe.

DESCRIPTION OF HOW CLASSES OF PIPES ARE USED FOR WATER SUPPLY INTO A BUILDING;