FLORIDA WASTEWATER ACTUAL EXAM
COMPLETE 200 QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) /ALREADY
GRADED A+
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? - ✔✔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? - ✔✔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? -
✔✔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 stroke length is 11
inches? The pump runs at 99 revolutions per minute. - ✔✔134gpm
solve MCRT:
1|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
, Flow: 3.6mgd
Basin volume: 5.0mg
MLSS:2350mg/l
WAS ss:4800mg/l
WAS flow: 150000gpd
Eff tss: 15mg/l - ✔✔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? - ✔✔Run jar tests to
determine best Polymer dosage
An advantage of a continuous backwash, up flow, deep bed sand filters is? -
✔✔Filters do not need to be taken out of service for backwashing
The aeration tank dissolved oxygen has been running normal, 1.5 to 2.0 mg/L
the whole month.
Today's D.O. reading has spiked to nearly 6.0 mg/L in the aeration tank and the
clarifier and plant effluent or cloudy.
What is the most likely cause of the rise in D.O.? - ✔✔A toxic shock load of
cyanide has entered the plant
2|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
COMPLETE 200 QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) /ALREADY
GRADED A+
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? - ✔✔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? - ✔✔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? -
✔✔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 stroke length is 11
inches? The pump runs at 99 revolutions per minute. - ✔✔134gpm
solve MCRT:
1|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
, Flow: 3.6mgd
Basin volume: 5.0mg
MLSS:2350mg/l
WAS ss:4800mg/l
WAS flow: 150000gpd
Eff tss: 15mg/l - ✔✔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? - ✔✔Run jar tests to
determine best Polymer dosage
An advantage of a continuous backwash, up flow, deep bed sand filters is? -
✔✔Filters do not need to be taken out of service for backwashing
The aeration tank dissolved oxygen has been running normal, 1.5 to 2.0 mg/L
the whole month.
Today's D.O. reading has spiked to nearly 6.0 mg/L in the aeration tank and the
clarifier and plant effluent or cloudy.
What is the most likely cause of the rise in D.O.? - ✔✔A toxic shock load of
cyanide has entered the plant
2|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
