Wastewater Practice Test (Florida) English questions with answers

Wastewater Practice Test (Florida) |\ |\ |\ |\




English questions with answers |\ |\ |\




According to FDEP chapter 62-600.440 (4) (b) FAC, basic
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level disinfection is described as: - CORRECT ANSWERS
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✔✔A chlorine residual of 0.5 mg/L for 15 minutes at peak
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hourly flow |\




FDEP chapter 62-604.550 (a) FAC, requires a wastewater
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spill shall be verbally reported to the state warning point
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no later than: - CORRECT ANSWERS ✔✔24hrs from
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discovery


What is the 'rule of thumb' regarding pump packing? -
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CORRECT ANSWERS ✔✔Never put rings of new packing |\ |\ |\ |\ |\ |\ |\ |\



over the old packing
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According to FDEP chapter 62-60, FAC, a composite |\ |\ |\ |\ |\ |\ |\ |\



sample shall be used for which test? - CORRECT
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ANSWERS ✔✔Effluent CBOD |\ |\




Chlorine residual can be measured in several ways,
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including the use of DPD reagent, spectrophotometers
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and iodometric titration. Which of the following is also an
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,approved method? - CORRECT ANSWERS
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✔✔Amperometric Titration |\




Chapter 62-601, Domestic wastewater treatment plant
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monitoring, states that on-site tests for total residual
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chlorine, pH, and _______ can be performed under the
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direction of a certified operator: - CORRECT ANSWERS
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✔✔Dissolved Oxygen(DO) |\




Starting this type of pump against a closed valve can
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cause major damage to the pump, pump piping, the
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operator, or all three - CORRECT ANSWERS ✔✔Positive
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displacement pump |\




These types of samples may be used for CBOD5 and
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nutrients at flows less than 100,000 GPD, according to
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chapter 62-601 - CORRECT ANSWERS ✔✔Grab samples
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According to FDEP chapter 62-602, drinking water and
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wastewater treatment plant operators, duties of
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operators includes reporting to the permittee and the
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department, as soon as possible, but within 24hrs: -
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CORRECT ANSWERS ✔✔Any major interruption of service
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,What could cause a centrifugal above ground pump to be
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noisy while running - CORRECT ANSWERS ✔✔Debris
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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
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of the current month? - CORRECT ANSWERS ✔✔28th day
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FDEP chapter 62-600 FC, domestic wastewater facilities,
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states that all treatment plants shall be____________ -
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CORRECT ANSWERS ✔✔Fenced |\ |\




As the operator of a primary clarifier, you notice a black
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and odorous septic wastewater leaving the clarifier. What
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is the probable cause? - CORRECT ANSWERS ✔✔Improper
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sludge removal
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A fire has started in the maintenance shop due to an
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ignition of petroleum oil. Which type of fire extinguisher
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should NOT be used to fight the fire? - CORRECT
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ANSWERS ✔✔Pressurized water |\ |\




Chlorine gas is how many times heavier than air - |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔2.5 |\ |\

, The combination of methane and ____________ can be very
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combustible - CORRECT ANSWERS ✔✔Oxygen
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Plant effluent coliform count fails to meet the required
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standards for disinfection. Chlorine residual is normal.
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Disinfectant supplies ARE NOT a problem. What is the |\ |\ |\ |\ |\ |\ |\ |\ |\



probable cause? - CORRECT ANSWERS ✔✔Contact time
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too short |\




A fixed sample is: - CORRECT ANSWERS ✔✔A sample
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purposely spiked by the lab technician for QA/QC |\ |\ |\ |\ |\ |\ |\




According to FDEP chapter 62-602 FAC, an operator could
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have his license permanently revoked for: - CORRECT
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ANSWERS ✔✔Falsified or misrepresented reports, logs, or
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lab sheets |\




What process do the bacteria perform in the
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stabilization(re-aeration) tank in the contact stabilization |\ |\ |\ |\ |\ |\



process? - CORRECT ANSWERS ✔✔Absorption and
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digestion of the waste material they collected|\ |\ |\ |\ |\ |\




A screenings dumpster at the head works of the
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treatment plant is full at the end of the day. The dumpster
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is 6ft tall, 10ft long, and 8ft wide. How many cubic yards
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