Florida Wastewater Operator class B certification exam questions with answers

Florida Wastewater Operator class B |\ |\ |\ |\ |\




certification exam questions with |\ |\ |\ |\




answers

A common remedy for activated sludge system problems
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is to increase the waste activated sludge flow rate, when
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would an increase of WAS rate not be correct? - CORRECT
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ANSWERS ✔✔When straggler Floc is present in clarifier |\ |\ |\ |\ |\ |\ |\ |\



and settleometer |\




The chlorine residual is falling An inspection of the 150lb
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cylinder and chlorine feed equipment shows ice forming
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on the chlorine regulator and feed lines. The best method
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to fix the falling chlorine residual is? - CORRECT ANSWERS
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✔✔Put another chlorine cylinder online
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Caution must be used when adding caustic chemical to a
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digester.
Lime can combine with carbon dioxide in the digester to
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form what problem? - CORRECT ANSWERS ✔✔A
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dangerous vacuum |\




How many gallons will the single piston, reciprocating
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sludge pump discharge per minute If the piston bore
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(diameter) is 6 inches and the stroke length is 11 inches? |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\

, The pump runs at 99 revolutions per minute. - CORRECT
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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
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There are high suspended solids in the water applied to
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the filters due to bulking sludge in the secondary
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clarifiers.
Polymer is used as a filter aid chemical, but the effluent
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ability is worsening. |\ |\




What is the best method to correct the filter problem? -
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CORRECT ANSWERS ✔✔Run jar tests to determine best |\ |\ |\ |\ |\ |\ |\ |\



Polymer dosage |\




An advantage of a continuous backwash, up flow, deep
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bed sand filters is? - CORRECT ANSWERS ✔✔Filters do not
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need to be taken out of service for backwashing
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