Wastewater Practice Test (Florida) English
Question & Answers 2024
According to FDEP chapter 62-600.440 (4) (b) FAC, basic level
disinfection is described as: - Correct Answers ✅A chlorine residual
of 0.5 mg/L for 15 minutes at peak hourly flow
FDEP chapter 62-604.550 (a) FAC, requires a wastewater spill shall be
verbally reported to the state warning point no later than: - Correct
Answers ✅24hrs from discovery
What is the 'rule of thumb' regarding pump packing? - Correct Answers
✅Never put rings of new packing over the old packing
According to FDEP chapter 62-60, FAC, a composite sample shall be
used for which test? - Correct Answers ✅Effluent CBOD
Chlorine residual can be measured in several ways, including the use of
DPD reagent, spectrophotometers and iodometric titration. Which of
the following is also an approved method? - Correct Answers
✅Amperometric Titration
Chapter 62-601, Domestic wastewater treatment plant monitoring,
states that on-site tests for total residual chlorine, pH, and _______ can
be performed under the direction of a certified operator: - Correct
Answers ✅Dissolved Oxygen(DO)
,Wastewater Practice Test (Florida) English
Question & Answers 2024
Starting this type of pump against a closed valve can cause major
damage to the pump, pump piping, the operator, or all three - Correct
Answers ✅Positive displacement pump
These types of samples may be used for CBOD5 and nutrients at flows
less than 100,000 GPD, according to chapter 62-601 - Correct Answers
✅Grab samples
According to FDEP chapter 62-602, drinking water and wastewater
treatment plant operators, duties of operators includes reporting to the
permittee and the department, as soon as possible, but within 24hrs: -
Correct Answers ✅Any major interruption of service
What could cause a centrifugal above ground pump to be noisy while
running - Correct Answers ✅Debris caught in the impeller housing
According to FDEP chapter 62-601 FAC, Domestic wastewater
treatment plant monitoring, discharge monitoring reports (DMRs) for
the previous month must be submitted to the department by the
____________ day of the current month? - Correct Answers ✅28th
day
FDEP chapter 62-600 FC, domestic wastewater facilities, states that all
treatment plants shall be____________ - Correct Answers ✅Fenced
, Wastewater Practice Test (Florida) English
Question & Answers 2024
As the operator of a primary clarifier, you notice a black and odorous
septic wastewater leaving the clarifier. What is the probable cause? -
Correct Answers ✅Improper sludge removal
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? - Correct Answers ✅Pressurized water
Chlorine gas is how many times heavier than air - Correct Answers
✅2.5
The combination of methane and ____________ can be very
combustible - Correct Answers ✅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? - Correct Answers
✅Contact time too short
A fixed sample is: - Correct Answers ✅A sample purposely spiked by
the lab technician for QA/QC
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