Plumbing and Pipe Fitting 2, WASSCE (SC), 2021

Question 4

 

(a)        Illustrate with sketches, four sources of water supply.
(b)        (i)         What is a ball valve?
(ii)        List four types of ball valve

Observation

 

Most of the candidates were able to:

  • illustrate with sketches, four sources of water supply
  • list three types of urinals.

However some of them could not explain what is a ball valve.
The required response to question 4(a) is given below:


 

4(a)A sketch illustrating four sources of water supply: