Distribution level 3 exam 2023 with 100% correct answers

What federal agency is responsible for the rule making and enforcement of the safe water drinking act? Enviromental protection agency In detecting chlorine gas leaks from the disinfection assembly, an ammonia soaked rag will produce what? A dense white vapor The chlorine concentration in the water distribution system must be at least 0.2 mg/l What is the MCL for chlorine? 4 mg/l What is the minimum pressure in a water distribution system? 20 psi What is a brief meeting held around the tailgate of a truck called Tailgate safety meeting What form of chlorine has the lowest percentage of available chlorine and has the shortest shelf life Sodium hypochlorite The difference between static level and pumping level in a well is called? Drawdown Water pipelines are generally designed to have a maximum water velocity of 5 fps What are small mounds of corrosion that form on the inside of iron pipe Tubercles What is the minimum horizontal distance between a Watermain and a sanitary sewer main 10 feet Which of the following pumps must never be started until it is properly prime A centrifugal pump Hydrogen sulfide in water is under desirable because Imparts an unacceptable odor A temporary cloudiness in water is caused by Air entrainment