1|Page
CWEA Grade 1 and 2 Tests Collection Systems
Maintenance Exam ||Verified Exam!!|| Most Recent
Exam 2026 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded
A+ | Newest Exam!!!
Why are gasoline and volatile solvents objectionable when
present in a sewer? - Answer-They produce an explosion
hazard
You should never attempt to install, maintain, repair or
replace electrical equipment panels, controls, wiring or
circuits unless - Answer-You know what you are doing, are
qualified and are authorized
What are the different areas of traffic zones? - 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? - Answer-to
protect from corrosion and odors
,2|Page
Personnel entering a Permit Required Confined Space
must have the following training - Answer-entry and rescue
To find protective gear before application of a product, you
should: - Answer-look at the MSDS
The gas most commonly associated with septic
wastewater is - 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: - Answer-some dangerous
gasses are odorless (for example, carbon monoxide)
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? -
, 3|Page
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
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
CWEA Grade 1 and 2 Tests Collection Systems
Maintenance Exam ||Verified Exam!!|| Most Recent
Exam 2026 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded
A+ | Newest Exam!!!
Why are gasoline and volatile solvents objectionable when
present in a sewer? - Answer-They produce an explosion
hazard
You should never attempt to install, maintain, repair or
replace electrical equipment panels, controls, wiring or
circuits unless - Answer-You know what you are doing, are
qualified and are authorized
What are the different areas of traffic zones? - 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? - Answer-to
protect from corrosion and odors
,2|Page
Personnel entering a Permit Required Confined Space
must have the following training - Answer-entry and rescue
To find protective gear before application of a product, you
should: - Answer-look at the MSDS
The gas most commonly associated with septic
wastewater is - 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: - Answer-some dangerous
gasses are odorless (for example, carbon monoxide)
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? -
, 3|Page
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
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
