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Florida Wastewater Exam ||Just Out!!!
At what pH would disinfection be at its greatest? - ANSWER-5
It can be said that the lower the __________ , the greater the
________ - ANSWER-pH ; Disinfection
What is the distance between manholes? - ANSWER-300-500ft
What is the best range of parameters for the Activated Sludge
Process? - ANSWER-2ppm DO, pH 7.0, 80-95°F
What is the breakdown of nitrate to nitrogen gas called? -
ANSWER-Denitrification
What 2 stages are in an anaerobic digester? - ANSWER-Acid
formation and Gas formation
What is the benefit of step feed aeration? - ANSWER-Treat
higher flows in less space
What is classic sludge bulking caused from? - ANSWER-Young
sludge
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What should be the maximum allowable level of TSS and BOD in
the effluent of a domestic wastewater facility in accordance
with FAC? - ANSWER-20 TSS, 20 BOD or 90% removal
What does CBOD mean? - ANSWER-Carbonaceous Biochemical
Oxygen Demand
What is the minimum depth of a pond? - ANSWER-3 feet
What causes the most wear to an impeller? - ANSWER-Grit
If a pump will not start and you have power at the breaker,
what is the next logical step? - ANSWER-Check for blown fuses
What affect does CL2, acid, and CO2 have on pH? - ANSWER-
Lower
As an operator, how do you control the anaerobic digestion
process? - ANSWER-Temperature and rate of raw sludge feed
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What is a true statement about recording data? - ANSWER-
There are many techniques to record data
According to FAC chapter 62-600, Domestic wastewater
facilities, your job as an operator during major process
breakdowns is to? - ANSWER-Maintain competent
documentation and record keeping
Short circuiting in a primary clarifier can be prevented by? -
ANSWER-Baffles
What do you do if you experience a plant upset due to a
hydraulic overload? - ANSWER-Decrease WAS to maintain
microorganism population
A colored dye solution is added into the raw wastewater
entering a primary settling tank. The dye color was noticeable in
the effluent in 15 minutes and all of the color had passed
through the tank in 40 minutes. What does this indicate? -
ANSWER-Wastewater is passing through the tank too quickly for
effective settling
A spray field has a total of 80 acres and is divided into four
equal zones. Only one zone may be operated at a time and the
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permit states that no more than 4 inches of water can be
applied to the zone. How long can a zone be operated at a rate
of 0.7 MGD before it must be rotated to another zone? -
ANSWER-3.1 days
Most activated sludge mixed-liquor suspended solids fall into a
range of what percent volatile content for municipal waste
when the process is operating properly? - ANSWER-70 to 80%
What may be the first corrective action taken to resolve floating
sludge conditions in a secondary clarifier, given these
observations: SVI is 132; microscopic exam reveals abundance
of filamentous organisms - ANSWER-Increase DO
What is another term for organic solids? - ANSWER-Volatile
Which repair kit is designed for use with 150-pound chlorine
cylinders? - ANSWER-"A" kit
If a gallon of water weighs 8.34 pounds and a cubic foot of
water holds 7.48 gallons, how much does a cubic foot of water
weight? - ANSWER-62.4 pounds
Florida Wastewater Exam ||Just Out!!!
At what pH would disinfection be at its greatest? - ANSWER-5
It can be said that the lower the __________ , the greater the
________ - ANSWER-pH ; Disinfection
What is the distance between manholes? - ANSWER-300-500ft
What is the best range of parameters for the Activated Sludge
Process? - ANSWER-2ppm DO, pH 7.0, 80-95°F
What is the breakdown of nitrate to nitrogen gas called? -
ANSWER-Denitrification
What 2 stages are in an anaerobic digester? - ANSWER-Acid
formation and Gas formation
What is the benefit of step feed aeration? - ANSWER-Treat
higher flows in less space
What is classic sludge bulking caused from? - ANSWER-Young
sludge
,2|Page
What should be the maximum allowable level of TSS and BOD in
the effluent of a domestic wastewater facility in accordance
with FAC? - ANSWER-20 TSS, 20 BOD or 90% removal
What does CBOD mean? - ANSWER-Carbonaceous Biochemical
Oxygen Demand
What is the minimum depth of a pond? - ANSWER-3 feet
What causes the most wear to an impeller? - ANSWER-Grit
If a pump will not start and you have power at the breaker,
what is the next logical step? - ANSWER-Check for blown fuses
What affect does CL2, acid, and CO2 have on pH? - ANSWER-
Lower
As an operator, how do you control the anaerobic digestion
process? - ANSWER-Temperature and rate of raw sludge feed
,3|Page
What is a true statement about recording data? - ANSWER-
There are many techniques to record data
According to FAC chapter 62-600, Domestic wastewater
facilities, your job as an operator during major process
breakdowns is to? - ANSWER-Maintain competent
documentation and record keeping
Short circuiting in a primary clarifier can be prevented by? -
ANSWER-Baffles
What do you do if you experience a plant upset due to a
hydraulic overload? - ANSWER-Decrease WAS to maintain
microorganism population
A colored dye solution is added into the raw wastewater
entering a primary settling tank. The dye color was noticeable in
the effluent in 15 minutes and all of the color had passed
through the tank in 40 minutes. What does this indicate? -
ANSWER-Wastewater is passing through the tank too quickly for
effective settling
A spray field has a total of 80 acres and is divided into four
equal zones. Only one zone may be operated at a time and the
, 4|Page
permit states that no more than 4 inches of water can be
applied to the zone. How long can a zone be operated at a rate
of 0.7 MGD before it must be rotated to another zone? -
ANSWER-3.1 days
Most activated sludge mixed-liquor suspended solids fall into a
range of what percent volatile content for municipal waste
when the process is operating properly? - ANSWER-70 to 80%
What may be the first corrective action taken to resolve floating
sludge conditions in a secondary clarifier, given these
observations: SVI is 132; microscopic exam reveals abundance
of filamentous organisms - ANSWER-Increase DO
What is another term for organic solids? - ANSWER-Volatile
Which repair kit is designed for use with 150-pound chlorine
cylinders? - ANSWER-"A" kit
If a gallon of water weighs 8.34 pounds and a cubic foot of
water holds 7.48 gallons, how much does a cubic foot of water
weight? - ANSWER-62.4 pounds
