Wastewater Practice Test (Florida) English Exam fully
solved & updated|| GRADED A+||LATEST UPDATE
2025/26
According to FDEP chapter 62-600.440 (4) (b) FAC, basic level disinfection is described
as: -CORRECTANSWER 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: -CORRECTANSWER 24hrs from
discovery
What is the 'rule of thumb' regarding pump packing? -CORRECTANSWER 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? -CORRECTANSWER 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? -CORRECTANSWER 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: -CORRECTANSWER Dissolved Oxygen(DO)
Starting this type of pump against a closed valve can cause major damage to the pump,
pump piping, the operator, or all three -CORRECTANSWER 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 -CORRECTANSWER 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: -CORRECTANSWER Any major interruption of
service
What could cause a centrifugal above ground pump to be noisy while running -
CORRECTANSWER 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? -
CORRECTANSWER 28th day
, FDEP chapter 62-600 FC, domestic wastewater facilities, states that all treatment plants
shall be____________ -CORRECTANSWER Fenced
As the operator of a primary clarifier, you notice a black and odorous septic wastewater
leaving the clarifier. What is the probable cause? -CORRECTANSWER 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? -CORRECTANSWER
Pressurized water
Chlorine gas is how many times heavier than air -CORRECTANSWER 2.5
The combination of methane and ____________ can be very combustible -
CORRECTANSWER 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? -CORRECTANSWER Contact time too short
A fixed sample is: -CORRECTANSWER A sample purposely spiked by the lab
technician for QA/QC
solved & updated|| GRADED A+||LATEST UPDATE
2025/26
According to FDEP chapter 62-600.440 (4) (b) FAC, basic level disinfection is described
as: -CORRECTANSWER 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: -CORRECTANSWER 24hrs from
discovery
What is the 'rule of thumb' regarding pump packing? -CORRECTANSWER 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? -CORRECTANSWER 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? -CORRECTANSWER 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: -CORRECTANSWER Dissolved Oxygen(DO)
Starting this type of pump against a closed valve can cause major damage to the pump,
pump piping, the operator, or all three -CORRECTANSWER 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 -CORRECTANSWER 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: -CORRECTANSWER Any major interruption of
service
What could cause a centrifugal above ground pump to be noisy while running -
CORRECTANSWER 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? -
CORRECTANSWER 28th day
, FDEP chapter 62-600 FC, domestic wastewater facilities, states that all treatment plants
shall be____________ -CORRECTANSWER Fenced
As the operator of a primary clarifier, you notice a black and odorous septic wastewater
leaving the clarifier. What is the probable cause? -CORRECTANSWER 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? -CORRECTANSWER
Pressurized water
Chlorine gas is how many times heavier than air -CORRECTANSWER 2.5
The combination of methane and ____________ can be very combustible -
CORRECTANSWER 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? -CORRECTANSWER Contact time too short
A fixed sample is: -CORRECTANSWER A sample purposely spiked by the lab
technician for QA/QC
