Wastewater Treatment Operator |\ |\ |\
Certification Test #4 WITH ANSWERS |\ |\ |\ |\
1 mg/l is the same as 1 part per billion (ppb)
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True or False - CORRECT ANSWERS ✔✔False (v.1 pg 468)
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A SCADA system is capable of monitoring and controlling
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equipment from a remote location|\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.2 pg 627)
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A Discharge Monitoring Report is typically submitted to the
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regulatory agency on a daily basis
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True or False - CORRECT ANSWERS ✔✔False
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A mechanical seal is used to prevent leaks between the pump
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casing and shaft.
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True or False - CORRECT ANSWERS ✔✔True (v.2 pg 356)
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Alkalinity is the capacity of a liquid to neutralize a base.
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,True or False - CORRECT ANSWERS ✔✔False (v.2 pg 813)
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Typical mixed liquor suspended solids concentration is 1,000 to
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4,500 mg/l. |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.2 pg 54)
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Turbidity is caused by suspended matters.
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True or False - CORRECT ANSWERS ✔✔True (v.2 pg 606)
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Algae is not essential to the successful operation of both aerobic
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and facultative ponds.
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True or False - CORRECT ANSWERS ✔✔False (v.1 pg 299)
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The addition of acid and CO2 will lower the pH of wastewater.
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True or False - CORRECT ANSWERS ✔✔True (v.1 pg 299)
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Hydrogen sulfide will deteriorate concrete structures.
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True or False - CORRECT ANSWERS ✔✔True (v.1 pg 20)
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, The higher the pH, the better the disinfection - CORRECT
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ANSWERS ✔✔False (v.1 pg 352) |\ |\ |\ |\
Maintain a dissolved oxygen concentration of 12 to 14 mg/l in the
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aeration tank.
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True or False - CORRECT ANSWERS ✔✔False (v.2 pg 53)
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When the velocity of the wastewater in a clarifier is greater in
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some sections than others, it will lead to short-circuiting.
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True or False - CORRECT ANSWERS ✔✔True (v.1 pg 135)
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The F/M ratio will decrease when the microorganism population in
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the aeration tank increases.
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True or False - CORRECT ANSWERS ✔✔True (v.2 pg 16)
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Algae growth will be faster when there is less sunlight.
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True or False - CORRECT ANSWERS ✔✔False (v.1 pg 309)
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The higher the temperature, the more rapid the rate of
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disinfection.
True or False - CORRECT ANSWERS ✔✔True (v.1 pg 352)
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Certification Test #4 WITH ANSWERS |\ |\ |\ |\
1 mg/l is the same as 1 part per billion (ppb)
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔False (v.1 pg 468)
|\ |\ |\ |\ |\ |\ |\ |\ |\
A SCADA system is capable of monitoring and controlling
|\ |\ |\ |\ |\ |\ |\ |\ |\
equipment from a remote location|\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.2 pg 627)
|\ |\ |\ |\ |\ |\ |\ |\ |\
A Discharge Monitoring Report is typically submitted to the
|\ |\ |\ |\ |\ |\ |\ |\ |\
regulatory agency on a daily basis
|\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔False
|\ |\ |\ |\ |\ |\
A mechanical seal is used to prevent leaks between the pump
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
casing and shaft.
|\ |\
True or False - CORRECT ANSWERS ✔✔True (v.2 pg 356)
|\ |\ |\ |\ |\ |\ |\ |\ |\
Alkalinity is the capacity of a liquid to neutralize a base.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
,True or False - CORRECT ANSWERS ✔✔False (v.2 pg 813)
|\ |\ |\ |\ |\ |\ |\ |\ |\
Typical mixed liquor suspended solids concentration is 1,000 to
|\ |\ |\ |\ |\ |\ |\ |\ |\
4,500 mg/l. |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.2 pg 54)
|\ |\ |\ |\ |\ |\ |\ |\ |\
Turbidity is caused by suspended matters.
|\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.2 pg 606)
|\ |\ |\ |\ |\ |\ |\ |\ |\
Algae is not essential to the successful operation of both aerobic
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
and facultative ponds.
|\ |\
True or False - CORRECT ANSWERS ✔✔False (v.1 pg 299)
|\ |\ |\ |\ |\ |\ |\ |\ |\
The addition of acid and CO2 will lower the pH of wastewater.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.1 pg 299)
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Hydrogen sulfide will deteriorate concrete structures.
|\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.1 pg 20)
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, The higher the pH, the better the disinfection - CORRECT
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ANSWERS ✔✔False (v.1 pg 352) |\ |\ |\ |\
Maintain a dissolved oxygen concentration of 12 to 14 mg/l in the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
aeration tank.
|\ |\
True or False - CORRECT ANSWERS ✔✔False (v.2 pg 53)
|\ |\ |\ |\ |\ |\ |\ |\ |\
When the velocity of the wastewater in a clarifier is greater in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
some sections than others, it will lead to short-circuiting.
|\ |\ |\ |\ |\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.1 pg 135)
|\ |\ |\ |\ |\ |\ |\ |\ |\
The F/M ratio will decrease when the microorganism population in
|\ |\ |\ |\ |\ |\ |\ |\ |\
the aeration tank increases.
|\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔True (v.2 pg 16)
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Algae growth will be faster when there is less sunlight.
|\ |\ |\ |\ |\ |\ |\ |\ |\
True or False - CORRECT ANSWERS ✔✔False (v.1 pg 309)
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The higher the temperature, the more rapid the rate of
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
disinfection.
True or False - CORRECT ANSWERS ✔✔True (v.1 pg 352)
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