SCIENCE 101 > EXAM > CWEA Collection Systems Maintenance | 140 Questions with 100% Correct Answers (All)
CWEA Collection Systems Maintenance | 140 Questions with 100% Correct Answers
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Why are gasoline and volatile solvents objectionable when present in a sewer? - ✔✔They produce an explosion hazard You should never attempt to install, maintain, repair or replace electrical equ i... pment panels, controls, wiring or circuits unless - ✔✔You know what you are doing, are qualified and are authorized What are the different areas of traffic zones? - ✔✔Advance Warning Area, Transition Area, Activity Area (buffer space and work space), Termination Area. Could be 4 or 5, justify your answer on the test! why should hydrogen sulfide be controlled? - ✔✔to protect from corrosion and odors Personnel entering a Permit Required Confined Space must have the following training - ✔✔entry and rescue To find protective gear before application of a product, you should: - ✔✔look at the MSDS The gas most commonly associated with septic wastewater is [Show More]
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