List 6 waste appliances, name 4 soil fittings, explain sedimentation, filtration, chlorination, and state the composition of solder and bronze.

Here are the answers to question 1:

a) List 6 waste appliances

1. Sink (kitchen or utility)
2. Wash hand basin
3. Bathtub
4. Shower tray
5. Washing machine
6. Dishwasher

b) Name 4 soil fittings

1. Bend
2. Branch
3. Access pipe
4. Coupling

c) Explain the following processes of water treatment
I. Sedimentation: This is the process where heavier suspended particles in water settle down to the bottom of a tank due to gravity. It removes larger impurities before further treatment.
II. Filtration: This process involves passing water through a porous medium (like sand, gravel, or activated carbon) to remove smaller suspended particles, turbidity, and some microorganisms.
III. Chlorination: This is a disinfection method where chlorine or chlorine compounds are added to water to kill or inactivate disease-causing microorganisms such as bacteria and viruses.

d) State the composition of each of the following alloys
i. Solder: Primarily composed of tin and lead, though lead-free solders use tin with other metals like copper or silver.
ii. Bronze: Primarily an alloy of copper and tin, sometimes with other metals like zinc, manganese, or aluminum.