TEXAS CLASS D WATER DISTRIBUTION STUDY GUIDE
TEST WITH LATEST UPDATED (QUESTIONS AND
ANSWERS) ALREADY PASSED!
What is the name of the State Agency responsible for enforcing the Safe
Drinking Water Act? Correct Answers Texas Commission on
Environmental Quality
what Minerals are associated with water hardness? Correct Answers
Calcium and magnesium
A public water system MUST at all times provide?
A. Adequate quantity of water
B. Adequate water pressure
c. Adequate disinfection
D. All of the above Correct Answers D. All of the above
A Source of groundwater would be? Correct Answers Aquifer
Fecal Coliform organisms sometimes found in water supplies are an
indication that?
A. The water Supply is Contaminated
B. Harmful Bacteria may be present
C. Possible pathogenic organisms are in the water
D. The water is unsuitable for drinking
, E. All of the above Correct Answers E. All of the above
A disease that may be spread by inadequately disinfected water is
Correct Answers Dysentery
A Common Chemical used in the disinfection of a small water Supply is
Correct Answers Calcium hypochlorite
A public water Supply system should maintain a system residual
pressure of 20 psi and a minimum normal operating pressure of _____
Correct Answers 35 psi
The amount of chlorine in mg/L that is used by reacting with iron,
organics or bacteria is called Correct Answers Demand
The MOST important treatment in water is Correct Answers
Disinfection
Which of the following would be considered part(s) of a hypo-
chlorinator system Correct Answers Solution feed pump
According to state requirements all public water supply wells shall be
provided with a raised concrete sealing block screen vents and Correct
Answers Flow Measuring Device
TEST WITH LATEST UPDATED (QUESTIONS AND
ANSWERS) ALREADY PASSED!
What is the name of the State Agency responsible for enforcing the Safe
Drinking Water Act? Correct Answers Texas Commission on
Environmental Quality
what Minerals are associated with water hardness? Correct Answers
Calcium and magnesium
A public water system MUST at all times provide?
A. Adequate quantity of water
B. Adequate water pressure
c. Adequate disinfection
D. All of the above Correct Answers D. All of the above
A Source of groundwater would be? Correct Answers Aquifer
Fecal Coliform organisms sometimes found in water supplies are an
indication that?
A. The water Supply is Contaminated
B. Harmful Bacteria may be present
C. Possible pathogenic organisms are in the water
D. The water is unsuitable for drinking
, E. All of the above Correct Answers E. All of the above
A disease that may be spread by inadequately disinfected water is
Correct Answers Dysentery
A Common Chemical used in the disinfection of a small water Supply is
Correct Answers Calcium hypochlorite
A public water Supply system should maintain a system residual
pressure of 20 psi and a minimum normal operating pressure of _____
Correct Answers 35 psi
The amount of chlorine in mg/L that is used by reacting with iron,
organics or bacteria is called Correct Answers Demand
The MOST important treatment in water is Correct Answers
Disinfection
Which of the following would be considered part(s) of a hypo-
chlorinator system Correct Answers Solution feed pump
According to state requirements all public water supply wells shall be
provided with a raised concrete sealing block screen vents and Correct
Answers Flow Measuring Device
