WorksheetsCPE649: WATER QUALITY
Total questions: 10
Worksheet time: 3mins
Name
Class
Date
1.
1. Which of the following have size more than 1 micron?
a)
Dissolved material
b)
Suspended material
c)
Colloids
2.
2. The following are the sources of suspended solids:
-natural contaminants
-domestic use of water
-industrial use of water
a)
True
b)
False
3.
3. NTU is a unit for color measurement.
a)
True
b)
False
4.
4. Choose a correct statement.
a)
Manganese oxide gives reddish color
b)
Turbidity may interfere photosynthesis due to less light penetration
c)
Odor produced by organic substances are not carcinogenic
5.
5. Which of the following is not the impact of temperature?
a)
Solubility of gases decreases at elevated temperatures
b)
Biological activities lower in higher temperature
c)
Physical properties e.g viscosity and density – affect planktonic microorganism
d)
Algae growth higher in warm water, causes algae mats – secrete oil and dead algae will causes taste & odor problem
6.
6. The followings are the chemical parameters:
I. Hardness
II. Nutrients
III. Alkalinity
IV. Metals
V. Total Dissolved Solids (TDS)
a)
III and IV
b)
III, IV and V
c)
II, III and V
d)
I and IV
e)
All of the above
7.
7. Choose the INCORRECT statement.
a)
Echerichia Coli (E. coli) is a common bacteria that indicate the presence of pathogens
b)
Fungi is important in decomposing organic matter to simple forms
c)
Algae is useful in oxidation pond
d)
Virus is not a biological parameters for water quality
8.
8. Parameters limit of effluent can be classified into Standard A and Standard B.
a)
True
b)
False
9.
9. Standard B is applicable to discharge into any water within any catchment areas.
a)
True
b)
False
10.
10. Water Quality Index (WQI) is a tool in water quality classification and to measure the degree of water pollution.
a)
True
b)
False
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