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CWEA Collection Systems Maintenance Exam With 100% Correct And Verified Answers 2024
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CWEA Collection Systems Maintenance Exam With 100% Correct And Verified Answers 2024
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CWEA Collection Systems MaintenanceExam With 100% Correct And Verified
Answers 2024
Why are gasoline and volatile solvents objectionable when present in a sewer? -
Correct Answer-They produce an explosion hazard
You should never attempt to install, maintain, repair or replace electrical equipment
panels, controls, wiring or circuits unless - Correct Answer-You know what you are
doing, are qualified and are authorized
What are the different areas of traffic zones? - Correct Answer-Advance Warning Area,
Transition Area, Activity Area (buffer space and work space), Termination Area. Could
be 4 or 5, justify your answer on the test!
why should hydrogen sulfide be controlled? - Correct Answer-to protect from corrosion
and odors
Personnel entering a Permit Required Confined Space must have the following training
- Correct Answer-entry and rescue
To find protective gear before application of a product, you should: - Correct Answer-
look at the MSDS
The gas most commonly associated with septic wastewater is - Correct Answer-
Hydrogen Sulfide
The lack of an unpleasant odor in a manhole, lift station or other structures does not
always mean that dangerous gases are not present because: - Correct Answer-some
dangerous gasses are odorless (for example, carbon monoxide)
What are the four conditions necessary to create an explosion? - Correct Answer-
combustible gas, adequate oxygen, heat and proper mixing of gas and oxygen
what does the "transition area" mean in traffic control? - Correct Answer-It moves traffic
out of its normal path
what elements should be considered to improve worker safety in High speed Temporary
Traffic control Zones? - Correct Answer-Rerouting traffic around the work site,
positioning of law enforcement officers in the temporary traffic control zone, and work
zone training
, What key features would you need to address when developing an S.O.P. for a Lift
Station failure? - Correct Answer-Traffic Control Plan, By-Pass connections, and Spill
containment
What tools are used with a power rodder? - Correct Answer-Spring Blades
Tools used for sewer rodding include: - Correct Answer-porcupine, root saw, square bar
cork screw
What tool would you use to cut VCP pipe? - Correct Answer-Chain Pipe Cutter
Which conditions should a gas detection device test for? - Correct Answer-Hydrogen
sulfide, explosive/flammable gases, oxygen
What does "LEL" mean on a gas detection meter? - Correct Answer-Lower Explosive
Limit
The oxygen level alarm normally goes off if oxygen levels are below: - Correct Answer-
19.5 percent
When developing an S.O.P. for scheduled maintenance of electrical equipment, what
program should be addressed as a primary safety guideline? - Correct Answer-The
L.O.T.O Program
What does L.O.T.O. Stand for? - Correct Answer-Lock out tag out
What document would you require to be referenced when developing an S.O.p. for
hazardous substace spill clean up? - Correct Answer-M.S.D.S.
in developing an S.O.P. for air monitoring in a Permit Required Confined Space you
would include what two factors? - Correct Answer-Placement of the blower and a
weather forecast
According to the State Water Resources Control Board Order No. 2006-003-DWQ, each
enrollee must develop and implement a system-specific: - Correct Answer-SSMP
(Sewer System Management Plan)
How long do you have to report a category 1 SSO? - Correct Answer-2 hours
To report in the Statewide SSO Data-base California Integrated Water Quality System
(CIWQS) regarding the location of a Category 2 SSO, how must you report the
location? - Correct Answer-Using the GPS coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause: - Correct
Answer-odors
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