SOLUTIONS EXAM BASED!!
What most commonly causes seawater intrusion into coastal groundwater basins?
A) Excessive rainfall
B) Nearby construction
C) Over-pumping from the groundwater basin
D) Tidal changes
Answer: C
How are riparian rights obtained?
A) Through legal agreement
B) With title to land bordering surface water
C) By purchasing water rights separately
D) Through government permits
Answer: B
What is an underground layer of rock or soil that allows water to pass through
called?
A) Basin
B) Reservoir
C) Aquifer
D) Water table
Answer: C
From a public health perspective, the highest priority in water production is:
,A) Minimizing costs
B) Water that is safe to drink and free from bacteria and toxins
C) Reducing mineral content
D) Increasing flow rates
Answer: B
High color content in water could indicate any of the following, except:
A) High mineral content
B) Organic material
C) Presence of metals
D) A high pH
Answer: D
Which is NOT a common watershed management practice?
A) Vegetation control
B) Regular monitoring
C) Allowing wastewater discharge into the reservoir
D) Erosion prevention
Answer: C
Controlling taste and odor problems and organic load within the reservoir may help
to avoid:
A) Chlorine treatment
B) Filtration
C) Activated carbon treatment
D) Boiling
, Answer: C
Chemical control of plankton and periphyton in water reservoirs is mainly used to
prevent:
A) Sediment build-up
B) Algae blooms causing taste and odor issues
C) Water clarity issues
D) Temperature changes
Answer: B
Which three water quality factors influence the effectiveness of copper sulfate as
an algicide?
A) Alkalinity, suspended solids, and water temperature
B) Water clarity, temperature, and color
C) Mineral content, pH, and flow rate
D) pH, temperature, and water volume
Answer: A
During thermal stratification and anaerobic conditions, adding which substance can
improve water quality?
A) Nitrogen
B) Dissolved oxygen
C) Chlorine
D) Sediment
Answer: B
Which chemical is most commonly used to control algae blooms?