1|Page
FLORIDA WASTEWATER EXAM NEWEST 2025/2026 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
A fire has started in the maintenance shop due to an ignition of
petroleum oil. Which type of fire extinguisher should NOT be used
to fight the fire? - ANSWER-Pressurized water
Chlorine gas is how many times heavier than air - ANSWER-2.5
The combination of methane and ____________ can be very
combustible - ANSWER-Oxygen
Plant effluent coliform count fails to meet the required standards
for disinfection. Chlorine residual is normal. Disinfectant supplies
ARE NOT a problem. What is the probable cause? - ANSWER-
Contact time too short
A fixed sample is: - ANSWER-A sample purposely spiked by the
lab technician for QA/QC
,2|Page
According to FDEP chapter 62-602 FAC, an operator could have
his license permanently revoked for: - ANSWER-Falsified or
misrepresented reports, logs, or lab sheets
What process do the bacteria perform in the stabilization(re-
aeration) tank in the contact stabilization process? - ANSWER-
Absorption and digestion of the waste material they collected
A screenings dumpster at the head works of the treatment plant is
full at the end of the day. The dumpster is 6ft tall, 10ft long, and
8ft wide. How many cubic yards of screenings must be disposed
of in a 30 day month? - ANSWER-533 (6 x 10 x 8 = 480) (480 /27
= 17.7) (17.7 x 30 = 533)
When properly adjusted, the rope packing on a centrifugal pump
is designed to leak how much? - ANSWER-One drip per second
A confined space is defined as having a space large enough to
bodily enter and perform work, has limited entry and egress and is
___________? - ANSWER-Not designed for continuous
occupancy
,3|Page
You noticed that your bearings are excessively hot on a pump,
why? - ANSWER-Over lubrication
Where can you gain access for collection system maintenance? -
ANSWER-Man hole
Low DO and nutrient deficiency will promote the growth of
_________? - ANSWER-Filamentous bacteria
When charging a lead-acid type battery for a composite sampler,
what dangerous gas could be produced? - ANSWER-Hydrogen
What is the best method in dealing with a chemical spill? -
ANSWER-Contain and clean up
There is septic wastewater entering your primary clarifier. What is
the problem? - ANSWER-Anaerobic conditions in the collection
systems
, 4|Page
Which of the following substances is highly viscous and very
slippery? - ANSWER-Polymer
If you pump green sludge to a drying bed what chemical should
be applied? - ANSWER-Lime
In a lab, a dilute acid solution must be prepared for titration in the
alkalinity test. The proper procedure for making the weak acid is
to: - ANSWER-Add the acid slowly to the dilution water
What is the dosage of chlorine, in mg/L, if the flow being treated is
85,000 GPD and 3 pounds of chlorine are used per day? -
ANSWER-4.2 mg/L
Upon arriving at the package treatment plant serving a small
community, you find a uniform sludge blanket rising throughout
the clarifier. A settleability test reveals a very slow-settling sludge,
leaving a clear supernatant. MLSS test results are normal, but a
calculation of the SVI shows high sludge volume index. What is
the most likely cause of the high sludge blanket? - ANSWER-
Filamentous bacteria are causing the slow settling
FLORIDA WASTEWATER EXAM NEWEST 2025/2026 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
A fire has started in the maintenance shop due to an ignition of
petroleum oil. Which type of fire extinguisher should NOT be used
to fight the fire? - ANSWER-Pressurized water
Chlorine gas is how many times heavier than air - ANSWER-2.5
The combination of methane and ____________ can be very
combustible - ANSWER-Oxygen
Plant effluent coliform count fails to meet the required standards
for disinfection. Chlorine residual is normal. Disinfectant supplies
ARE NOT a problem. What is the probable cause? - ANSWER-
Contact time too short
A fixed sample is: - ANSWER-A sample purposely spiked by the
lab technician for QA/QC
,2|Page
According to FDEP chapter 62-602 FAC, an operator could have
his license permanently revoked for: - ANSWER-Falsified or
misrepresented reports, logs, or lab sheets
What process do the bacteria perform in the stabilization(re-
aeration) tank in the contact stabilization process? - ANSWER-
Absorption and digestion of the waste material they collected
A screenings dumpster at the head works of the treatment plant is
full at the end of the day. The dumpster is 6ft tall, 10ft long, and
8ft wide. How many cubic yards of screenings must be disposed
of in a 30 day month? - ANSWER-533 (6 x 10 x 8 = 480) (480 /27
= 17.7) (17.7 x 30 = 533)
When properly adjusted, the rope packing on a centrifugal pump
is designed to leak how much? - ANSWER-One drip per second
A confined space is defined as having a space large enough to
bodily enter and perform work, has limited entry and egress and is
___________? - ANSWER-Not designed for continuous
occupancy
,3|Page
You noticed that your bearings are excessively hot on a pump,
why? - ANSWER-Over lubrication
Where can you gain access for collection system maintenance? -
ANSWER-Man hole
Low DO and nutrient deficiency will promote the growth of
_________? - ANSWER-Filamentous bacteria
When charging a lead-acid type battery for a composite sampler,
what dangerous gas could be produced? - ANSWER-Hydrogen
What is the best method in dealing with a chemical spill? -
ANSWER-Contain and clean up
There is septic wastewater entering your primary clarifier. What is
the problem? - ANSWER-Anaerobic conditions in the collection
systems
, 4|Page
Which of the following substances is highly viscous and very
slippery? - ANSWER-Polymer
If you pump green sludge to a drying bed what chemical should
be applied? - ANSWER-Lime
In a lab, a dilute acid solution must be prepared for titration in the
alkalinity test. The proper procedure for making the weak acid is
to: - ANSWER-Add the acid slowly to the dilution water
What is the dosage of chlorine, in mg/L, if the flow being treated is
85,000 GPD and 3 pounds of chlorine are used per day? -
ANSWER-4.2 mg/L
Upon arriving at the package treatment plant serving a small
community, you find a uniform sludge blanket rising throughout
the clarifier. A settleability test reveals a very slow-settling sludge,
leaving a clear supernatant. MLSS test results are normal, but a
calculation of the SVI shows high sludge volume index. What is
the most likely cause of the high sludge blanket? - ANSWER-
Filamentous bacteria are causing the slow settling
