PHYSICAL CHEMICAL OPERATOR SC STUDY SET C AND D LATEST UPDATE 2026/2027 GRADED A+ .

1. Always a piece of equipment before attempting a repair: Lockout/Tagout 2. Before entering a confined space, you should check for oxygen levels no less than _ or greater than _.: 19.5%& 23.5% 3. The greatest hazard with the generation and handling of carbon dioxide is .: Asphyxiation 4. The most hazardous condition associated with storage areas, slurry tanks, or other confined spaces where activated carbon is present is ----: Depletion of oxygen 5. Ventilation or a blower should be placed at least feet from manhole and at a angle to the wind direction to allow communication and prevent contaminants entering the manhole: 6feet,right angle 6. and should be located in an easily accessible place known to all employees: Fire extinguishers, first aid kits 7. A pipet with TD printed on it means '' ": To deliver 8. The jar test is used to establish optimum dosage in the process: coagulation/flocculation 9. Three waterborne diseases are : typhoid fever, dysentery and cholera 10. are the most frequent injuries occurring in water operations: Strains and Sprains 11. Methane gas is dangerous because it is : explosive 12. amperes of electricity is sufficient to injure or kill a person: 1/3amps 13. The most reliable backflow preventor is the : Air Gap 14. The device is the most reliable backflow if an air gap is not in place: RP (Reduced Pressure) 15. Public health is the primary concern regarding : effluent disposal 16. First aid for first degree bums would be to : immediately submerge burn in cold water 17. The purpose of a backflow preventer is to : prevent contamination of a water supply 18. is very effective in cleaning up a polymer spill: Salt 19. An example of a Class A fire would be correct answer woodburning 20. An example of aClassBfire would be correct answer ChemicalBurning 21. An example of aClass C fire would be correct answer ElectricalFire 22. An example of aClass D fire would be correct answer FlammableMetals 23. Slipping is a hazard associated with a spill: polymer 24. The problems encountered while working around chlorine is that chlorine is : very corrosive, toxic and aggressive 25. Always store incompatible chemicals .: apart from each other 26. Flush eyes or skin for at least if chlorine gets in your eyes or on your skin: 15minutes 27. hours of continuing education is required every two years to maintain a certification: 12hours 28. is the agency responsible for enforcement of regulations for water plants in the State of SC: SCDHEC 29. The Municipality issues for industries that discharge to a treatment plant: pretreatment permits 30. The can revoke or suspend an operators certification for certain infrac-tions of the regulations: ECB (Environmental Control Board) 31. Use the facility to troubleshoot operational problems at the treatment plant: O&Mmanual 32. The regulatessafety in wastewatertreatment plantsin SC: DOL(Department ofLabor) 33. classifies wastewater treatment plants in SC: SCDHEC 34. RCRA states that a large quantity generator of hazardous waste cannot store waste on site for more than : 90days 35. of wastewater treatment plant operators is required by law in the State of SC: Certification 36. In SC the operator's must be renewed annually: certification 37. POTW is the abbreviation for : Publicly Owned Treatment Works 38. would limit or prevent land application ofthe sludges: Highmetalconcentra-tions 39. Pertinent information concerning a particular hazardous substance or mix-ture can be found in the : MSDS (Material Safety Data Sheet) 40. EPA considers a solution with a pH le