florida wastewater actual exam complete 200 questi
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FLORIDA WASTEWATER
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FLORIDA WASTEWATER ACTUAL EXAM COMPLETE 200
QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) /ALREADY GRADED A+
According to FDEP chapter 62-600.440 (4) (b) FAC, basic level disinfection is
described as: - 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 shall be verbally
reported to the state warning point no later than: - ANSWER: 24hrs from discovery
What is the 'rule of thumb' regarding pump packing? - ANSWER: 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? - ANSWER: 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? - 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: - 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 - ANSWER: 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 - 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: - ANSWER: Any major
interruption of service
What could cause a centrifugal above ground pump to be noisy while running -
ANSWER: 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? -
ANSWER: 28th day
, FDEP chapter 62-600 FC, domestic wastewater facilities, states that all treatment
plants shall be____________ - ANSWER: Fenced
As the operator of a primary clarifier, you notice a black and odorous septic
wastewater leaving the clarifier. What is the probable cause? - ANSWER: 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? - 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
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
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
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