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CWEA Collections Grade 2 wastewater collections exam water operator certification sewer system operations wastewater maintenance collections system safety regulatory compliance wastewater operator exam practice CWEA certification practice test qu

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CWEA Collections Grade 2 Practice Test – Exam Review Questions and Answers for Certification Preparation

Institution
Pest Applicator
Course
Pest applicator

Content preview

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)


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

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Institution
Pest applicator
Course
Pest applicator

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Uploaded on
June 1, 2026
Number of pages
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Written in
2025/2026
Type
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Contains
Questions & answers

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