CWEA Collections Grade 1,2,3 & 4 2024 Exams
STUDY BUNDLE WITH COMPLETE SOLUTIONS|
Questions and Verified Answers| 100% Correct|
Grade A
Why are gasoline and volatile solvents objectionable when present in a sewer? -
ANSWERThey produce an explosion hazard
You should never attempt to install, maintain, repair or replace electrical equipment
panels, controls, wiring or circuits unless - ANSWERYou know what you are doing,
are qualified and are authorized
What are the different areas of traffic zones? - ANSWERAdvance 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? - ANSWERto protect from corrosion and
odors
Personnel entering a Permit Required Confined Space must have the following
training - ANSWERentry and rescue
To find protective gear before application of a product, you should: - ANSWERlook at
the MSDS
The gas most commonly associated with septic wastewater is - ANSWERHydrogen
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: - ANSWERsome
dangerous gasses are odorless (for example, carbon monoxide)
What are the four conditions necessary to create an explosion? -
ANSWERcombustible gas, adequate oxygen, heat and proper mixing of gas and
oxygen
what does the "transition area" mean in traffic control? - ANSWERIt moves traffic out
of its normal path
what elements should be considered to improve worker safety in High speed
Temporary Traffic control Zones? - ANSWERRerouting 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? - ANSWERTraffic Control Plan, By-Pass connections, and Spill
containment
What tools are used with a power rodder? - ANSWERSpring Blades
Tools used for sewer rodding include: - ANSWERporcupine, root saw, square bar cork
screw
What tool would you use to cut VCP pipe? - ANSWERChain Pipe Cutter
Which conditions should a gas detection device test for? - ANSWERHydrogen sulfide,
explosive/flammable gases, oxygen
What does "LEL" mean on a gas detection meter? - ANSWERLower Explosive Limit
The oxygen level alarm normally goes off if oxygen levels are below: - ANSWER19.5
percent
When developing an S.O.P. for scheduled maintenance of electrical equipment, what
program should be addressed as a primary safety guideline? - ANSWERThe L.O.T.O
Program
What does L.O.T.O. Stand for? - ANSWERLock out tag out
What document would you require to be referenced when developing an S.O.p. for
hazardous substace spill clean up? - ANSWERM.S.D.S.
in developing an S.O.P. for air monitoring in a Permit Required Confined Space you
would include what two factors? - ANSWERPlacement 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: - ANSWERSSMP
(Sewer System Management Plan)
How long do you have to report a category 1 SSO? - ANSWER2 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? - ANSWERUsing the GPS coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause: -
ANSWERodors
Flatter sewer line grades may cause added sewer maintenance expense and odor
nuisance. This is caused by what? - ANSWERA decrease in velocity which allows
STUDY BUNDLE WITH COMPLETE SOLUTIONS|
Questions and Verified Answers| 100% Correct|
Grade A
Why are gasoline and volatile solvents objectionable when present in a sewer? -
ANSWERThey produce an explosion hazard
You should never attempt to install, maintain, repair or replace electrical equipment
panels, controls, wiring or circuits unless - ANSWERYou know what you are doing,
are qualified and are authorized
What are the different areas of traffic zones? - ANSWERAdvance 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? - ANSWERto protect from corrosion and
odors
Personnel entering a Permit Required Confined Space must have the following
training - ANSWERentry and rescue
To find protective gear before application of a product, you should: - ANSWERlook at
the MSDS
The gas most commonly associated with septic wastewater is - ANSWERHydrogen
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: - ANSWERsome
dangerous gasses are odorless (for example, carbon monoxide)
What are the four conditions necessary to create an explosion? -
ANSWERcombustible gas, adequate oxygen, heat and proper mixing of gas and
oxygen
what does the "transition area" mean in traffic control? - ANSWERIt moves traffic out
of its normal path
what elements should be considered to improve worker safety in High speed
Temporary Traffic control Zones? - ANSWERRerouting 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? - ANSWERTraffic Control Plan, By-Pass connections, and Spill
containment
What tools are used with a power rodder? - ANSWERSpring Blades
Tools used for sewer rodding include: - ANSWERporcupine, root saw, square bar cork
screw
What tool would you use to cut VCP pipe? - ANSWERChain Pipe Cutter
Which conditions should a gas detection device test for? - ANSWERHydrogen sulfide,
explosive/flammable gases, oxygen
What does "LEL" mean on a gas detection meter? - ANSWERLower Explosive Limit
The oxygen level alarm normally goes off if oxygen levels are below: - ANSWER19.5
percent
When developing an S.O.P. for scheduled maintenance of electrical equipment, what
program should be addressed as a primary safety guideline? - ANSWERThe L.O.T.O
Program
What does L.O.T.O. Stand for? - ANSWERLock out tag out
What document would you require to be referenced when developing an S.O.p. for
hazardous substace spill clean up? - ANSWERM.S.D.S.
in developing an S.O.P. for air monitoring in a Permit Required Confined Space you
would include what two factors? - ANSWERPlacement 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: - ANSWERSSMP
(Sewer System Management Plan)
How long do you have to report a category 1 SSO? - ANSWER2 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? - ANSWERUsing the GPS coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause: -
ANSWERodors
Flatter sewer line grades may cause added sewer maintenance expense and odor
nuisance. This is caused by what? - ANSWERA decrease in velocity which allows
