EXAMS SCRIPT QUESTIONS AND ANSWERS SURE
A+
✔✔What factors affect coagulation? - ✔✔Turbidity, pH, and temperature
✔✔What is the single most important factor in influencing coagulation? - ✔✔pH
✔✔What is soda ash used for in the water treatment process? - ✔✔Adjusting pH
✔✔What is the maximum flow rate through a sand filter? - ✔✔2-4 GPM/ft2
✔✔What is the minimum pressure in a distribution system? - ✔✔20 psi
✔✔What safety devices are required for chlorine cylinders? - ✔✔Fusible plug safety
device designed to melt at 158-165 degrees Fahrenheit
✔✔What are the hazards associated with dust? - ✔✔Inhalation and explosion
✔✔What are the safe chlorine withdrawal rates for pressure or vacuum? - ✔✔150
pounds or One ton