Exam Questions and Answers 100% Pass
/. Who enforces the drinking water regulations in Georgia? - Answer-✅Georgia EPD
/.What type of sample is required for bacterial analysis? - Answer-✅Flushed
/.What type of sample is required for lead and copper? - Answer-✅First Draw
/.Water must sit in the customer's plumbing lines motionless for at least 6 hours, but no
longer than 12 hour for which of the following samples? - Answer-✅Lead & Copper
/.Care must be taken when handling bacteria sample bottles during the sampling
process due to the fact that they are: - Answer-✅Sterile
/.What water quality problem is most likely to occur dead-end water mains? - Answer-
✅Dirty Water and or Taste & Odor
/.Examples of three waterborne diseases are: - Answer-✅Typhoid fever, Infectious
hepatitis, Cholera
/.When should a new water main be flushed and disinfected before placing in service? -
Answer-✅Every Time
/.The standard purity of HTH is - Answer-✅65%
/.Sodium hypochlorite is also known as - Answer-✅Bleach
/.The chemical used to detect chlorine residuals in water is - Answer-✅DPD
/.A venturi tube increases the velocity and decreases the pressure as water flows
through the unit. This type of tube is used to: - Answer-✅Measure the rate of water
flowing through it
/.Which one of the following types of meters has no moving parts: - Answer-✅Venturi
/.Which tap is a connection made into a main that is full of water or under pressure? -
Answer-✅Wet Tap
, /.A valve that joins a customer's service to the water main called: - Answer-
✅Corporation Stop
/.The following meter is used where the water demand varies considerably: - Answer-
✅Compound
/.Which if the following factors determine the type of corporation stop that should be
used? - Answer-✅Size and material of main being tapped, Service line material, Type
of connection to service line
/.Which of the following is an advantage of wet taps? - Answer-✅No interruption in
service, Made without shutting off the water, Less chance of contamination
/.The most commonly known corporation stop thread is called: - Answer-✅Mueller
Threads
/.Ab example of a large-flow water main is - Answer-✅Velocity Meter
/.Temporary cloudiness in a freshly drawn sample of tap water may be caused by: -
Answer-✅Air
/.When opening and closing valves in high pressure lines the valves should be: -
Answer-✅Opened and closed slowly
/.Which of the following is NOT a joint used to install valves? - Answer-✅Actuator Joint
/.Which valve is never used for throttling flow? - Answer-✅Gate valve
/.A valve that is leak-tight is said to be - Answer-✅Resilient
/.The connection between a safe and unsafe water supply is called a: - Answer-✅Cross
Connection
/.The most reliable backflow prevention method is: - Answer-✅Air Gap
/.Of the mechanical backflow prevention deceives listed, which is not recommended to
be used to protect against backflow due to back pressure? - Answer-✅Atmospheric
vacuum breaker
/.Pressure is usually measured in - Answer-✅PSI
/.Neglecting friction, a water line 6 inches in diameter can - Answer-✅Transport more
water than two 4-inch lines