CWEA Collection Systems Maintenance questions and answers latest top score.

CWEA Collection Systems Maintenance questions and answers latest top score. Why are gasoline and volatile solvents objectionable when present in a sewer? - correct answers.They produce an explosion hazard You should never attempt to install, maintain, repair or replace electrical equipment panels, controls, wiring or circuits unless - correct answers.You know what you are doing, are qualified and are authorized What are the different areas of traffic zones? - correct answers.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? - correct protect from corrosion and odors Personnel entering a Permit Required Confined Space must have the following training - correct and rescue To find protective gear before application of a product, you should: - correct at the MSDS The gas most commonly associated with septic wastewater is - correct answers.Hydrogen Sulfide The lack of an unpleasant odor in a manhole, lift station or other structures does not always mean that dangerous gases are not present because: - correct dangerous gasses are odorless (for example, carbon monoxide) What are the four conditions necessary to create an explosion? - correct stible gas, adequate oxygen, heat and proper mixing of gas and oxygen what does the "transition area" mean in traffic control? - correct answers.It moves traffic out of its normal path what elements should be considered to improve worker safety in High speed Temporary Traffic control Zones? - correct answers.Rerouting traffic around the work site, positioning of law enforcement officers in the temporary traffic control zone, and work zone training What key features would you need to address when developing an S.O.P. for a Lift Station failure? - correct answers.Traffic Control Plan, By-Pass connections, and Spill containment What tools are used with a power rodder? - correct answers.Spring Blades Tools used for sewer rodding include: - correct pine, root saw, square bar cork screw What tool would you use to cut VCP pipe? - correct answers.Chain Pipe Cutter Which conditions should a gas detection device test for? - correct answers.Hydrogen sulfide, explosive/flammable gases, oxygen What does "LEL" mean on a gas detection meter? - correct answers.Lower Explosive Limit The oxygen level alarm normally goes off if oxygen levels are below: - correct answers.19.5 percent When developing an S.O.P. for scheduled maintenance of electrical equipment, what program should be addressed as a primary safety guideline? - correct answers.The L.O.T.O Program What does L.O.T.O. Stand for? - correct answers.Lock out tag out What document would you require to be referenced when developing an S.O.p. for hazardous substace spill clean up? - correct answers.M.S.D.S.