1|Page
CWEA Wastewater Treatment Process Control Exam
Practice Questions And Correct Answers||Verified
Exam!!|| (Verified Answers) Plus Rationale 2026/2027
Q&A| Instant Download Pdf
What are the four conditions necessary to create an
explosion? - Answer-combustible gas, adequate oxygen,
heat and proper mixing of gas and oxygen
what does the "transition area" mean in traffic control? -
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? -
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? - Answer-
Traffic Control Plan, By-Pass connections, and Spill
containment
,2|Page
What tools are used with a power rodder? - Answer-Spring
Blades
Tools used for sewer rodding include: - Answer-porcupine,
root saw, square bar cork screw
What tool would you use to cut VCP pipe? - Answer-Chain
Pipe Cutter
Which conditions should a gas detection device test for? -
Answer-Hydrogen sulfide, explosive/flammable gases,
oxygen
What does "LEL" mean on a gas detection meter? -
Answer-Lower Explosive Limit
The oxygen level alarm normally goes off if oxygen levels
are below: - 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? - Answer-The L.O.T.O
Program
, 3|Page
What does L.O.T.O. Stand for? - 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? - 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? - 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: - Answer-SSMP (Sewer
System Management Plan)
How long do you have to report a category 1 SSO? -
Answer-2 hours
Why are gasoline and volatile solvents objectionable when
present in a sewer? - Answer-They produce an explosion
hazard
CWEA Wastewater Treatment Process Control Exam
Practice Questions And Correct Answers||Verified
Exam!!|| (Verified Answers) Plus Rationale 2026/2027
Q&A| Instant Download Pdf
What are the four conditions necessary to create an
explosion? - Answer-combustible gas, adequate oxygen,
heat and proper mixing of gas and oxygen
what does the "transition area" mean in traffic control? -
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? -
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? - Answer-
Traffic Control Plan, By-Pass connections, and Spill
containment
,2|Page
What tools are used with a power rodder? - Answer-Spring
Blades
Tools used for sewer rodding include: - Answer-porcupine,
root saw, square bar cork screw
What tool would you use to cut VCP pipe? - Answer-Chain
Pipe Cutter
Which conditions should a gas detection device test for? -
Answer-Hydrogen sulfide, explosive/flammable gases,
oxygen
What does "LEL" mean on a gas detection meter? -
Answer-Lower Explosive Limit
The oxygen level alarm normally goes off if oxygen levels
are below: - 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? - Answer-The L.O.T.O
Program
, 3|Page
What does L.O.T.O. Stand for? - 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? - 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? - 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: - Answer-SSMP (Sewer
System Management Plan)
How long do you have to report a category 1 SSO? -
Answer-2 hours
Why are gasoline and volatile solvents objectionable when
present in a sewer? - Answer-They produce an explosion
hazard
