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CWEA Collections Grade 2 Practice Test
Questions and Correct Answers/ Latest
Update / Already Graded
Why are gasoline and volatile solvents objectionable when present
in a sewer?
Ans: They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or
replace electrical equipment unless:
Ans: You know what you are doing, are qualified, and are authorized.
How many different areas of traffic zones are there when working in
roadways?
Ans: Five
Why should hydrogen sulfide be controlled?
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Ans: To protect sewers and structures from corrosion
Personnel entering a Permit Required Confined Space must have the
following training:
Ans: Entry and rescue procedures
To find proper protective gear before application of a product, you
would:
Ans: Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is:
Ans: Hydrogen Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always mean
that dangerous gases are not present because:
Ans: Some dangerous gases have no odor
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What four conditions are necessary to create an explosion?
Ans: Combustible gas, adequate oxygen, sufficient heat, and proper
mixing of gas and oxygen.
What does "transition area" mean in traffic control?
Ans: Moves traffic out of its normal path
The term "transition area" is one component of a:
Ans: Traffic Control Zone
What elements should be considered to improve worker safety in
High Speed Temporary Traffic Control Zones?
Ans: Rerouting traffic around the work site, positioning of law
enforcement officers in the temporary traffic control zone, and work zone
training.
CWEA Collections Grade 2 Practice Test
Questions and Correct Answers/ Latest
Update / Already Graded
Why are gasoline and volatile solvents objectionable when present
in a sewer?
Ans: They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or
replace electrical equipment unless:
Ans: You know what you are doing, are qualified, and are authorized.
How many different areas of traffic zones are there when working in
roadways?
Ans: Five
Why should hydrogen sulfide be controlled?
,2 | Page
Ans: To protect sewers and structures from corrosion
Personnel entering a Permit Required Confined Space must have the
following training:
Ans: Entry and rescue procedures
To find proper protective gear before application of a product, you
would:
Ans: Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is:
Ans: Hydrogen Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always mean
that dangerous gases are not present because:
Ans: Some dangerous gases have no odor
, 3 | Page
What four conditions are necessary to create an explosion?
Ans: Combustible gas, adequate oxygen, sufficient heat, and proper
mixing of gas and oxygen.
What does "transition area" mean in traffic control?
Ans: Moves traffic out of its normal path
The term "transition area" is one component of a:
Ans: Traffic Control Zone
What elements should be considered to improve worker safety in
High Speed Temporary Traffic Control Zones?
Ans: Rerouting traffic around the work site, positioning of law
enforcement officers in the temporary traffic control zone, and work zone
training.
