CWEA Collections Grade 2 Practice Test

CWEA Collections Grade 2 Practice Test 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? - 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 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. What key factors would you need to address when developing an S.O.P. for Lift Station failure? - ANS Traffic control plan, by-pass connections, and spill containment.