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Worksheets

Water Treatment System

Total questions: 10

Worksheet time: 2mins

Name
Class
Date
1.

objective of water treatment

a)

remove the different impurities in raw water

b)

for manufacturing purpose

c)

reduce the turbidity

d)

remove all the microbial in raw water

2.

Three contaminant that can be removed by using filtration except;

a)

turbidity

b)

microbial

c)

color

d)

organics

3.

purpose of intake in water treatment plant

a)

to filter raw water from water source

b)

to deliver water to treatment plant

c)

to make sure water is clean before being used in plant

d)

to withdraw water from water source

4.

aluminium sulfate usually used as a

a)

catalyst

b)

flocculant

c)

coagulant

d)

neutralizer

5.

All of the following are the functions of aeration tank EXCEPT;

a)

remove the air and gases from the water.

b)

separates suspended particle matter from water

c)

Adding oxygen into the water

d)

Remove unwanted odour from water

6.

In which part flocculation of floc happens?

a)

mixing point

b)

aeration tank

c)

sedimentation tank

d)

filtration

7.

what is coagulation?

a)

to remove the sludge

b)

neutralization of charges for particles to agglomerate

c)

bring suspended particles together so they will form flocs

d)

to remove all the suspended material in water

8.

all of the following are the medium for granular filtration EXCEPT

a)

sand

b)

activated carbon

c)

coal

d)

wood husk

9.

the term chlorination is also similar with

a)

aluminium sulfat

b)

calcium oxide

c)

chlorine

d)

hydrogen sulfat

10.

all of the following are the chemicals used in water treatment process EXCEPT

a)

aluminium sulfat

b)

calcium oxide

c)

chlorine

d)

hydrogen sulfate