Florida Wastewater Operator Class B
Certification Exam 2024/2025 Exam
Questions and Detailed Answers | Get it
100% Correct Answers
A common remedy for activated sludge system problems is to increase the
waste activated sludge flow rate, when would an increase of WAS rate not
be correct? - 🧠ANSWER ✔✔When straggler Floc is present in clarifier and
settleometer
The chlorine residual is falling An inspection of the 150lb cylinder and
chlorine feed equipment shows ice forming on the chlorine regulator and
feed lines. The best method to fix the falling chlorine residual is? -
🧠ANSWER ✔✔Put another chlorine cylinder online
Caution must be used when adding caustic chemical to a digester.
Lime can combine with carbon dioxide in the digester to form what
problem? - 🧠ANSWER ✔✔A dangerous vacuum
How many gallons will the single piston, reciprocating sludge pump
discharge per minute If the piston bore (diameter) is 6 inches and the
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
, stroke length is 11 inches? The pump runs at 99 revolutions per minute. -
🧠ANSWER ✔✔134gpm
solve MCRT:
Flow: 3.6mgd
Basin volume: 5.0mg
MLSS:2350mg/l
WAS ss:4800mg/l
WAS flow: 150000gpd
Eff tss: 15mg/l - 🧠ANSWER ✔✔15 days
There are high suspended solids in the water applied to the filters due to
bulking sludge in the secondary clarifiers.
Polymer is used as a filter aid chemical, but the effluent ability is worsening.
What is the best method to correct the filter problem? - 🧠ANSWER ✔✔Run
jar tests to determine best Polymer dosage
An advantage of a continuous backwash, up flow, deep bed sand filters is?
- 🧠ANSWER ✔✔Filters do not need to be taken out of service for
backwashing
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
Certification Exam 2024/2025 Exam
Questions and Detailed Answers | Get it
100% Correct Answers
A common remedy for activated sludge system problems is to increase the
waste activated sludge flow rate, when would an increase of WAS rate not
be correct? - 🧠ANSWER ✔✔When straggler Floc is present in clarifier and
settleometer
The chlorine residual is falling An inspection of the 150lb cylinder and
chlorine feed equipment shows ice forming on the chlorine regulator and
feed lines. The best method to fix the falling chlorine residual is? -
🧠ANSWER ✔✔Put another chlorine cylinder online
Caution must be used when adding caustic chemical to a digester.
Lime can combine with carbon dioxide in the digester to form what
problem? - 🧠ANSWER ✔✔A dangerous vacuum
How many gallons will the single piston, reciprocating sludge pump
discharge per minute If the piston bore (diameter) is 6 inches and the
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
, stroke length is 11 inches? The pump runs at 99 revolutions per minute. -
🧠ANSWER ✔✔134gpm
solve MCRT:
Flow: 3.6mgd
Basin volume: 5.0mg
MLSS:2350mg/l
WAS ss:4800mg/l
WAS flow: 150000gpd
Eff tss: 15mg/l - 🧠ANSWER ✔✔15 days
There are high suspended solids in the water applied to the filters due to
bulking sludge in the secondary clarifiers.
Polymer is used as a filter aid chemical, but the effluent ability is worsening.
What is the best method to correct the filter problem? - 🧠ANSWER ✔✔Run
jar tests to determine best Polymer dosage
An advantage of a continuous backwash, up flow, deep bed sand filters is?
- 🧠ANSWER ✔✔Filters do not need to be taken out of service for
backwashing
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
