CWEA Collections Grade 2 Practice Test
Exam Questions and Answers 100%
Guaranteed Pass
Why are gasoline and volatile solvents objectionable when present in a sewer? -
✔✔They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or replace
electrical equipment unless: - ✔✔You know what you are doing, are qualified,
and are authorized.
How many different areas of traffic zones are there when working in roadways?
- ✔✔Five
Why should hydrogen sulfide be controlled? - ✔✔To protect sewers and
structures from corrosion
Personnel entering a Permit Required Confined Space must have the following
training: - ✔✔Entry and rescue procedures
To find proper protective gear before application of a product, you would: -
✔✔Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is: - ✔✔Hydrogen
Sulfide (H2S)
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©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, The lack of an unpleasant odor in a structure does not always mean that
dangerous gases are not present because: - ✔✔Some dangerous gases have no
odor
What four conditions are necessary to create an explosion? - ✔✔Combustible
gas, adequate oxygen, sufficient heat, and proper mixing of gas and oxygen.
What does "transition area" mean in traffic control? - ✔✔Moves traffic out of
its normal path
The term "transition area" is one component of a: - ✔✔Traffic Control Zone
What elements should be considered to improve worker safety in High Speed
Temporary Traffic Control Zones? - ✔✔Rerouting traffic around the work site,
positioning of law enforcement officers in the temporary traffic control zone,
and work zone training.
What key factors would you need to address when developing an S.O.P. for Lift
Station failure? - ✔✔Traffic control plan, by-pass connections, and spill
containment.
"Spring Blades" are a type of tool used with: - ✔✔Power Rodder
Porcupine, Root Saw, and a Square Bar Cork Screw are all tools used for: -
✔✔Sewer rodding
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
Exam Questions and Answers 100%
Guaranteed Pass
Why are gasoline and volatile solvents objectionable when present in a sewer? -
✔✔They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or replace
electrical equipment unless: - ✔✔You know what you are doing, are qualified,
and are authorized.
How many different areas of traffic zones are there when working in roadways?
- ✔✔Five
Why should hydrogen sulfide be controlled? - ✔✔To protect sewers and
structures from corrosion
Personnel entering a Permit Required Confined Space must have the following
training: - ✔✔Entry and rescue procedures
To find proper protective gear before application of a product, you would: -
✔✔Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is: - ✔✔Hydrogen
Sulfide (H2S)
1|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, The lack of an unpleasant odor in a structure does not always mean that
dangerous gases are not present because: - ✔✔Some dangerous gases have no
odor
What four conditions are necessary to create an explosion? - ✔✔Combustible
gas, adequate oxygen, sufficient heat, and proper mixing of gas and oxygen.
What does "transition area" mean in traffic control? - ✔✔Moves traffic out of
its normal path
The term "transition area" is one component of a: - ✔✔Traffic Control Zone
What elements should be considered to improve worker safety in High Speed
Temporary Traffic Control Zones? - ✔✔Rerouting traffic around the work site,
positioning of law enforcement officers in the temporary traffic control zone,
and work zone training.
What key factors would you need to address when developing an S.O.P. for Lift
Station failure? - ✔✔Traffic control plan, by-pass connections, and spill
containment.
"Spring Blades" are a type of tool used with: - ✔✔Power Rodder
Porcupine, Root Saw, and a Square Bar Cork Screw are all tools used for: -
✔✔Sewer rodding
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
