Wastewater Practice Test (Florida) English Exam(Latest
Questions With Verified Answers)A+Graded
According to FDEP chapter 62-600.440 (4) (b) FAC, basic level disinfection is described
as:Correct Answer - 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 to be verbally reported to the state
warning point no later than 24 hours from discovery.
What is the 'rule of thumb' regarding pump packing? Correct Answer - Never place fresh
packing rings on top of old packing rings.
According to FDEP chapter 62-60, FAC, which test requires a composite sample?Correct
Answer - Effluent CBOD Chlorine residual can be evaluated in a variety of ways, including with
DPD reagent, spectrophotometers, and iodometric titration.
Which of the following is an accepted method? Correct Answer - 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
Answer - 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 - 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 Answer -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 Answer- Any major interruption of service What could cause a
centrifugal above ground pump to be noisy while running - 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 Answer- On the 28th day
FDEP chapter 62-600 FC, domestic wastewater facilities, stipulates that all treatment plants
must be____________ - Fenced. As the operator of a primary clarifier, you see black and
odorous septic wastewater leaving the clarifier. What is the likely cause? - Improper sludge
removal
A fire broke out in the repair shop due to the igniting of petroleum oil. What sort of fire
extinguisher should not be used to put out a fire? - pressurized water
Chlorine gas is 2.5 times heavier than air. The mixture of methane and oxygen can be
particularly flammable.
The coliform count in plant effluent does not match the required disinfection levels.
Chlorine residual is typical. Disinfectant supplies are NOT an issue. What is the likely cause?
- Contact time is too brief.
A fixed sample is a sample purposefully spiked by the lab technician for QA/QC. According to
FDEP chapter 62-602 FAC, an operator's license might be permanently revoked for: - falsifying
or misrepresenting reports, logs, or lab sheets.
In the contact stabilization procedure, what role do bacteria play in the stabilization (re-aeration)
tank? - Absorbing and digesting the waste material they collected
The screens trash at the treatment plant's headworks is full by the end of the day. The
dumpster measures six feet tall, ten feet long, and eight feet broad. How many cubic yards of
screens must be disposed of in a 30-day period? - 533 (6 x 10 x 8 = 480) (480 /27 = 17.7) (17.7
x 30 = 533)
Questions With Verified Answers)A+Graded
According to FDEP chapter 62-600.440 (4) (b) FAC, basic level disinfection is described
as:Correct Answer - 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 to be verbally reported to the state
warning point no later than 24 hours from discovery.
What is the 'rule of thumb' regarding pump packing? Correct Answer - Never place fresh
packing rings on top of old packing rings.
According to FDEP chapter 62-60, FAC, which test requires a composite sample?Correct
Answer - Effluent CBOD Chlorine residual can be evaluated in a variety of ways, including with
DPD reagent, spectrophotometers, and iodometric titration.
Which of the following is an accepted method? Correct Answer - 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
Answer - 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 - 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 Answer -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 Answer- Any major interruption of service What could cause a
centrifugal above ground pump to be noisy while running - 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 Answer- On the 28th day
FDEP chapter 62-600 FC, domestic wastewater facilities, stipulates that all treatment plants
must be____________ - Fenced. As the operator of a primary clarifier, you see black and
odorous septic wastewater leaving the clarifier. What is the likely cause? - Improper sludge
removal
A fire broke out in the repair shop due to the igniting of petroleum oil. What sort of fire
extinguisher should not be used to put out a fire? - pressurized water
Chlorine gas is 2.5 times heavier than air. The mixture of methane and oxygen can be
particularly flammable.
The coliform count in plant effluent does not match the required disinfection levels.
Chlorine residual is typical. Disinfectant supplies are NOT an issue. What is the likely cause?
- Contact time is too brief.
A fixed sample is a sample purposefully spiked by the lab technician for QA/QC. According to
FDEP chapter 62-602 FAC, an operator's license might be permanently revoked for: - falsifying
or misrepresenting reports, logs, or lab sheets.
In the contact stabilization procedure, what role do bacteria play in the stabilization (re-aeration)
tank? - Absorbing and digesting the waste material they collected
The screens trash at the treatment plant's headworks is full by the end of the day. The
dumpster measures six feet tall, ten feet long, and eight feet broad. How many cubic yards of
screens must be disposed of in a 30-day period? - 533 (6 x 10 x 8 = 480) (480 /27 = 17.7) (17.7
x 30 = 533)
