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