Florida Wastewater Operator class B |\ |\ |\ |\ |\
certification exam questions with |\ |\ |\ |\
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? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔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? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔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? - CORRECT ANSWERS ✔✔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. - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔134gpm |\
solve MCRT: |\
Flow: 3.6mgd |\
Basin volume: 5.0mg |\ |\
MLSS:2350mg/l
WAS ss:4800mg/l |\
WAS flow: 150000gpd |\ |\
Eff tss: 15mg/l - CORRECT ANSWERS ✔✔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? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Run jar tests to determine best |\ |\ |\ |\ |\ |\ |\ |\
Polymer dosage |\
An advantage of a continuous backwash, up flow, deep
|\ |\ |\ |\ |\ |\ |\ |\ |\
bed sand filters is? - CORRECT ANSWERS ✔✔Filters do not
|\ |\ |\ |\ |\ |\ |\ |\ |\
need to be taken out of service for backwashing
|\ |\ |\ |\ |\ |\ |\ |\ |\
certification exam questions with |\ |\ |\ |\
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? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔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? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔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? - CORRECT ANSWERS ✔✔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. - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔134gpm |\
solve MCRT: |\
Flow: 3.6mgd |\
Basin volume: 5.0mg |\ |\
MLSS:2350mg/l
WAS ss:4800mg/l |\
WAS flow: 150000gpd |\ |\
Eff tss: 15mg/l - CORRECT ANSWERS ✔✔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? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Run jar tests to determine best |\ |\ |\ |\ |\ |\ |\ |\
Polymer dosage |\
An advantage of a continuous backwash, up flow, deep
|\ |\ |\ |\ |\ |\ |\ |\ |\
bed sand filters is? - CORRECT ANSWERS ✔✔Filters do not
|\ |\ |\ |\ |\ |\ |\ |\ |\
need to be taken out of service for backwashing
|\ |\ |\ |\ |\ |\ |\ |\ |\
