Water Treatment Practice Exam
#2 questions with complete
verified solutions (graded A+)
What is a pathogen? - answer Disease-causing microorganisms.
What is the impact of algae to water quality? - answer Taste and odor
problems.
What is the concentration of chlorine gas? - answer 100%.
Which of the following is not used to mix coagulants? - answer Horizontal
paddle wheel.
What is considered to be a quick remedy to adress a sudden increase in
filtered water turbidity? - answer Feed a filter-aid chemical to the filter
influent.
What is the likely cause of a pinping noise in a pump? - answer Cavitation
Which of the following controls the efficiency of removing suspended
solids in the sedimentation process? - answer Flowrate
What is a sanitary survey? - answer An analisis to determine all potencial
water quality impacts to a proposed well.
Which of the following categories does bacterial belong to? - answer
Colloidal
Under the Surface Water Treatment Rule, what must the reduction of
viruses be through filtration and disinfection? - answer 99.99%
, Which of the following is not considered free residual chlorine? - answer
Monochloramine
Why is coliform used as a indicator organism? - answer It reduce the
complexity and cost of analysis.
What is an example of a non-community, non-transient water - answer
School.
What is the purpose of a packing in a pump? - answer Control the leakege
of water along the pump shaft and prevent air from entering along the
shaft when the pump is in a suction lift condition.
What does the addition of carbon dioxide do to the pH of water? - answer
Lowers it.
What is an unconfined aquifer? - answer One in which groundwater
posseses a free surface open to the atmosphere.
What is static water level in a well? - answer Water level when pump is not
running.
Which of the following Will least likely impact the formation of flocs during
the coagulation and flocculation process? - answer Hardness.
What is formed when free chlorine reacts with ammonia? - answer
Chloramine.
Which contaminant causes Blue Baby Syndrome? - answer Nitrate.
What is free chlorine? - answer The concentration of residual chlorine in
water which is present as dissolved gas (CL2), hypochlorous acid (HOCI),
and/or hypochlorite ion (OCI).
#2 questions with complete
verified solutions (graded A+)
What is a pathogen? - answer Disease-causing microorganisms.
What is the impact of algae to water quality? - answer Taste and odor
problems.
What is the concentration of chlorine gas? - answer 100%.
Which of the following is not used to mix coagulants? - answer Horizontal
paddle wheel.
What is considered to be a quick remedy to adress a sudden increase in
filtered water turbidity? - answer Feed a filter-aid chemical to the filter
influent.
What is the likely cause of a pinping noise in a pump? - answer Cavitation
Which of the following controls the efficiency of removing suspended
solids in the sedimentation process? - answer Flowrate
What is a sanitary survey? - answer An analisis to determine all potencial
water quality impacts to a proposed well.
Which of the following categories does bacterial belong to? - answer
Colloidal
Under the Surface Water Treatment Rule, what must the reduction of
viruses be through filtration and disinfection? - answer 99.99%
, Which of the following is not considered free residual chlorine? - answer
Monochloramine
Why is coliform used as a indicator organism? - answer It reduce the
complexity and cost of analysis.
What is an example of a non-community, non-transient water - answer
School.
What is the purpose of a packing in a pump? - answer Control the leakege
of water along the pump shaft and prevent air from entering along the
shaft when the pump is in a suction lift condition.
What does the addition of carbon dioxide do to the pH of water? - answer
Lowers it.
What is an unconfined aquifer? - answer One in which groundwater
posseses a free surface open to the atmosphere.
What is static water level in a well? - answer Water level when pump is not
running.
Which of the following Will least likely impact the formation of flocs during
the coagulation and flocculation process? - answer Hardness.
What is formed when free chlorine reacts with ammonia? - answer
Chloramine.
Which contaminant causes Blue Baby Syndrome? - answer Nitrate.
What is free chlorine? - answer The concentration of residual chlorine in
water which is present as dissolved gas (CL2), hypochlorous acid (HOCI),
and/or hypochlorite ion (OCI).
