FLORIDA WASTEWATER OPERATOR CLASS
B EXAM 2026 COMPLETE QUESTION
DIGEST WITH CORRECT SOLUTIONS
◉What type of material should be used for transporting samples?
A. Glass
B. Polyethylene
C. Graduated cylinders
D. Burette. Answer: B. Polethylene
◉How does temperature effect disinfection?
A. Lower the temp the better the disinfection
B. Has no effect
C. Higher the temp the better the disinfection
D. Depends on the constant altitude. Answer: C. Higher the temp the
better the disinfection
,◉The advantage of an anaerobic digester over an aerobic digester
is?
A. Less solids
B. Increased power consumption
C. Decrease power consumption
D. Easier to operate. Answer: C. Decrease power consumption
◉How long should you wait after you make a process change before
making another change?
A. 7 hours
B. 10 days
C. When the operator thinks it's necessary
D. 1 week. Answer: D. 1 week
◉Determine the MCRT using the following:
Known:
Aerator volume = 323,000 gal
Final clarifier vol. = 150,000 gal
Flow = 2 MGD
Waste flow = 20,000gal
, MLSS = 2,400 mg/L
Waste sludge SS = 6400 mg/L
Final eff. SS = 16 mg/L
A. 3.3 days
B. 4.8 days
C. 2.7 days
D. 4.1 days. Answer: B. 4.8 days
◉What is needed to calculate the F/M ratio?
A. BOD mg/L and MLSS mg/L
B. BOD in Ibs and MLVSS in Ibs
C. BOD mg/L and MLVSS in Ibs
D. BOD in Ibs and MLSS mg/L. Answer: B. BOD in Ibs and MLVSS in
Ibs
◉What type of ponds are used after a trickling filter, activated
sludge, or RBC plant?
A. Facultative pond
B. Aeration Pond
B EXAM 2026 COMPLETE QUESTION
DIGEST WITH CORRECT SOLUTIONS
◉What type of material should be used for transporting samples?
A. Glass
B. Polyethylene
C. Graduated cylinders
D. Burette. Answer: B. Polethylene
◉How does temperature effect disinfection?
A. Lower the temp the better the disinfection
B. Has no effect
C. Higher the temp the better the disinfection
D. Depends on the constant altitude. Answer: C. Higher the temp the
better the disinfection
,◉The advantage of an anaerobic digester over an aerobic digester
is?
A. Less solids
B. Increased power consumption
C. Decrease power consumption
D. Easier to operate. Answer: C. Decrease power consumption
◉How long should you wait after you make a process change before
making another change?
A. 7 hours
B. 10 days
C. When the operator thinks it's necessary
D. 1 week. Answer: D. 1 week
◉Determine the MCRT using the following:
Known:
Aerator volume = 323,000 gal
Final clarifier vol. = 150,000 gal
Flow = 2 MGD
Waste flow = 20,000gal
, MLSS = 2,400 mg/L
Waste sludge SS = 6400 mg/L
Final eff. SS = 16 mg/L
A. 3.3 days
B. 4.8 days
C. 2.7 days
D. 4.1 days. Answer: B. 4.8 days
◉What is needed to calculate the F/M ratio?
A. BOD mg/L and MLSS mg/L
B. BOD in Ibs and MLVSS in Ibs
C. BOD mg/L and MLVSS in Ibs
D. BOD in Ibs and MLSS mg/L. Answer: B. BOD in Ibs and MLVSS in
Ibs
◉What type of ponds are used after a trickling filter, activated
sludge, or RBC plant?
A. Facultative pond
B. Aeration Pond
