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Do you really know your WTP?

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Daily Production Average of clean and safe water in 2023?

a)

4,488 MLD

b)

4,991 MLD

c)

5,117 MLD

d)

5,227 MLD

2.

How many dam under Air Selangor (including manage by third parties) ?

a)

6

b)

7

c)

8

d)

9

3.

how many water treatment plant under Air Selangor (including manage by contractors) ?

a)

31

b)

32

c)

33

d)

34

4.

Overall Treated Water Quality Compliance in 2023?

a)

99.80%

b)

99.93%

c)

99.95%

d)

100%

5.

Water treatment plant under Air Selangor abstracted/used raw water from different sources EXCEPT?

a)

aquifer / underground water

b)

river

c)

dam/ORS

d)

sewerage

6.

What are the function of SCREENING (fine screen/coarse screen) ?

a)

Containing large particles

b)

provide oxygen from the atmosphere to raw water

c)

Obtain rapid and uniform dispersion of chemical

d)

A process of gentle and continuos agitation where suspended particles coalesce into larger masses

7.

What are the function of AERATION ?

a)

Containing large particles

b)

provide oxygen from the atmosphere to raw water

c)

Obtain rapid and uniform dispersion of chemical

d)

A process of gentle and continuos agitation where suspended particles coalesce into larger masses

8.

What are the function of COAGULATION ?

a)

Containing large particles

b)

provide oxygen from the atmosphere to raw water

c)

Obtain rapid and uniform dispersion of chemical

d)

A process of gentle and continuos agitation where suspended particles coalesce into larger masses

9.

What are the function of FLOCCULATION ?

a)

Containing large particles

b)

provide oxygen from the atmosphere to raw water

c)

Obtain rapid and uniform dispersion of chemical

d)

A process of gentle and continuos agitation where suspended particles coalesce into larger masses

10.

What are the function of CLARIFICATION/SEDIMENTATION ?

a)

reduce velocity of flow and permit settlement of suspended solid

b)

To entrapped suspended particles in the pore spaces

c)

To destroy organisms that cause disease in man

d)

Volume reduction and increasing the solids content of the residual for ease handling and transportation

11.

What are the function of FILTRATION ?

a)

reduce velocity of flow and permit settlement of suspended solid

b)

To entrapped suspended particles in the pore spaces

c)

To destroy organisms that cause disease in man

d)

Volume reduction and increasing the solids content of the residual for ease handling and transportation

12.

What are the function of DISINFECTION ?

a)

reduce velocity of flow and permit settlement of suspended solid

b)

To entrapped suspended particles in the pore spaces

c)

To destroy organisms that cause disease in man

d)

Volume reduction and increasing the solids content of the residual for ease handling and transportation

13.

What are the function of RESIDUAL TREATMENT ?

a)

reduce velocity of flow and permit settlement of suspended solid

b)

To entrapped suspended particles in the pore spaces

c)

To destroy organisms that cause disease in man

d)

Volume reduction and increasing the solids content of the residual for ease handling and transportation

14.

What are the function of CONDITIONING ?

a)

reduce velocity of flow and permit settlement of suspended solid

b)

To entrapped suspended particles in the pore spaces

c)

Reducing hardness of water

d)

Volume reduction and increasing the solids content of the residual for ease handling and transportation

15.

What are the function of FLUORIDATION ?

a)

reduce velocity of flow and permit settlement of suspended solid

b)

Provides Protection against dental cavaties especially children

c)

Reducing hardness of water

d)

Volume reduction and increasing the solids content of the residual for ease handling and transportation