課程名稱︰環境工程概論
課程性質︰選修
課程教師︰林正芳
開課學院：工學院
開課系所︰環工所
考試日期（年月日）︰ 2006/10/30
考試時限（分鐘）：
是否需發放獎勵金：是 謝謝
（如未明確表示，則不予發放）
試題 :
Introduction to Environmental Engineering
Exam I
10/30/2006
Multiple Choice Questions: Choose ONE correct answer and fill it in the first
page (the answer sheet). 1.5 points per question, 30 points total. Turn in the
answer sheet only.
1. Vadose zone is:
A. Soil saturated with groundwater
B. Dry soil
C. Soil with air and water
2. A close looped aquaduct in water distribution:
A. Better circulation
B. Dead ends with extended residence time
C. Easy analysis
D. Unstable water quality
3. With no other chemical added, to remove dissolved or soluble solid
(<0.1 μm),use:
A. Sedimentation
B. Sand filtration
C. Membrane filtration
D. Ultra filtration
4. The major difference in testing total coliform and fecal coliform is:
A. Incubation media
B. Incubation duration
C. Incubation temperature
D. None of above
5. The primary standard of pathogenic organism for drinking water is:
A. Total coliform
B. Escherichia coli
C. Heterotrophic bacteria plate count (HPC)
6. Which statement is true?
A. Particles disperse in water is due to coagulation
B. Coagulation is a process to reduce zeta potential
C. Coagulant increase particle surface charge
7. A conventional water treatment process is:
A. Flocculation→Disinfection→Sedimentation→Coagulation→Filtration
B. Coagulation→Flocculation→Sedimentation→Filtration→Disinfection
C. Sedimentation→Disinfection→Filtration→Coagulation→Flocculation
8. For treating the same raw water, which coagulant requires the least dosage
(by means of total weight)?
A. Aluminum hydroxide
B. Ferric chloride
C. Polymer
D. Calcium carbonate
9. Direct filtration is commonly used in:
A. Water with high organic content
B. Groundwater plant
C. Plants require higher production rate
10. In chlorine disinfection, which one does the actual "killing" of pathogen?
A. Chlorohydrate
B. Hydrochloric acid
C. Hydrogen peroxide
D. Hypochlorous acid
11. To control halogenated disinfection byproduct:
A. Use alternative disinfectants (Ozone, chloramine, etc.)
B. Employ enhanced coagulation to reduce natural organic matter
C. Use carbon adsorption for precursor reduction
D. None of above
E. All of above
12. What is the ThOD of a wastewater containing 2g of glucose (C6H12O6) and 6g
of lactose (C12H22O11) per liter?
A. 90.5 mg/L
B. 0.89 g/L
C. 8.9 g/L
D. 0.3 g/L
13. Which is NOT a biological process of wastewater treatment?
A. Aeration tank
B. Sludge digestion
C. Nitrification
D. Aerated grit chamber
14. Which of the following reasons will cause sludge bulking?
A. High dissolved oxygen
B. Low food/mass ratio
C. pH>7.5
15. Which of the following statements about nitrification is true?
A. A process to remove excess nitrogen gas
B. Produces ammonium
C. The intermediate product is nitrate
D. The end product is nitrate
16. Which of the following statements is true?
A. Denitrification generate alkalinity
B. Activated sludge is a primary treatment for wastewater
C. Primary clarifier is used to remove biosolid
D. Nitrification is an anoxic process
17. Which of the following statements about solid treatment (in wastewater
process) is NOT true?
A. Produce methane
B. May need polymer addition
C. Sludge digestion requires aeration
D. Reduce water content
18. Which of the following statements about DNAPL is NOT true?
A. The plume migrate along with water flow
B. Denser then water
C. Difficult to detect
D. Will eventually reach groundwater saturate zone
19. Which of the following treatments is suitable (better) for heavy metal
contamination?
A. Air sparging
B. Phytoremediation
C. Soil vapor extraction
D. Multi-phase extraction
20. Which of the following remediations is suitable (better) for petroleum
hydrocarbons contaminated groundwater?
A. Phytoremediation
B. Landfill bioreactor
C. Air sparging and soil vapor extraction
D. Electrokinetics
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