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