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- 1. Multiple Choice
objective of water treatment
remove the different impurities in raw water
for manufacturing purpose
reduce the turbidity
remove all the microbial in raw water
- 2. Multiple Choice
Three contaminant that can be removed by using filtration except;
turbidity
microbial
color
organics
- 3. Multiple Choice
purpose of intake in water treatment plant
to filter raw water from water source
to deliver water to treatment plant
to make sure water is clean before being used in plant
to withdraw water from water source
- 4. Multiple Choice
aluminium sulfate usually used as a
catalyst
flocculant
coagulant
neutralizer
- 5. Multiple Choice
All of the following are the functions of aeration tank EXCEPT;
remove the air and gases from the water.
separates suspended particle matter from water
Adding oxygen into the water
Remove unwanted odour from water
- 6. Multiple Choice
In which part flocculation of floc happens?
mixing point
aeration tank
sedimentation tank
filtration
- 7. Multiple Choice
what is coagulation?
to remove the sludge
neutralization of charges for particles to agglomerate
bring suspended particles together so they will form flocs
to remove all the suspended material in water
- 8. Multiple Choice
all of the following are the medium for granular filtration EXCEPT
sand
activated carbon
coal
wood husk
- 9. Multiple Choice
the term chlorination is also similar with
aluminium sulfat
calcium oxide
chlorine
hydrogen sulfat
- 10. Multiple Choice
all of the following are the chemicals used in water treatment process EXCEPT
aluminium sulfat
calcium oxide
chlorine
hydrogen sulfate
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