TCEQ CLASS C WATER
LICENSE EXAM – COMPLETE
PRACTICE QUESTIONS &
ANSWERS
,TCEQ Class C Water License Exam – Complete
Practice Questions & Verified Correct Answers
(A+ Grade Guarantee)
1. State Agency responsince for enforcing the safe drinking
water act in Texas-
: Texas Commission on environmental Quality
2. What minerals can cause water hardness: Calcium and magnesium
3. A public water system must at all times provide: Adequate quantity
of water, pressure, and disinfection
4. A source groundwater would be: aquifer
5. Fecal coliform organisms sometimes found in water supplies
are an indica- tion that: Water supply is contaminated, harmful bacteria may be
present, possible pathogenic organisms in the water, water is unsuitable for drinking
6. A disease that may be spread by inadequately disinfected
water: Dysentery
7. A common chemical used in disinfection of small water
supply is: Calcium hypochlo- rite
8. A physical connection between a potable water supply and
house well would be: A cross connection
,9. The amount of chlorine in mg/L that is used up by reacting
with iron organics of bacteria is called: Demand
10. Which of the following is a physical characteristic of chlorine
gas: Greenish-Yellow
Color, heavier than air, pungent penetrating odor, corrosive
11. Which of the following would be considered a part of a
hypo-chlorinator system: Solution feed pump
12. According to state requirements, all public water Supply
wells should be provided with a raised concrete sealing block,
screened vents, and-: A flow measuring device
13. Drawdown of a water well is determined by: Difference in static and
pumping levels
14. pH of water indicates: If it's acidic or basic
15. The pH of water is expressed on a pH scale of: 0-14
16. Water that is considered neutral is expressed on the pH
scale at: 7.0
17. Which of the following is a required Step in collecting a
routine distribution sample for bacteriological testing?: Use of an
approved, sterile sample container
, 18. Sand filtration will remove which of the following from
surface water: Turbidity
19. Activated carbon is used in a surface water plant primarily
for: Taste and odor control
LICENSE EXAM – COMPLETE
PRACTICE QUESTIONS &
ANSWERS
,TCEQ Class C Water License Exam – Complete
Practice Questions & Verified Correct Answers
(A+ Grade Guarantee)
1. State Agency responsince for enforcing the safe drinking
water act in Texas-
: Texas Commission on environmental Quality
2. What minerals can cause water hardness: Calcium and magnesium
3. A public water system must at all times provide: Adequate quantity
of water, pressure, and disinfection
4. A source groundwater would be: aquifer
5. Fecal coliform organisms sometimes found in water supplies
are an indica- tion that: Water supply is contaminated, harmful bacteria may be
present, possible pathogenic organisms in the water, water is unsuitable for drinking
6. A disease that may be spread by inadequately disinfected
water: Dysentery
7. A common chemical used in disinfection of small water
supply is: Calcium hypochlo- rite
8. A physical connection between a potable water supply and
house well would be: A cross connection
,9. The amount of chlorine in mg/L that is used up by reacting
with iron organics of bacteria is called: Demand
10. Which of the following is a physical characteristic of chlorine
gas: Greenish-Yellow
Color, heavier than air, pungent penetrating odor, corrosive
11. Which of the following would be considered a part of a
hypo-chlorinator system: Solution feed pump
12. According to state requirements, all public water Supply
wells should be provided with a raised concrete sealing block,
screened vents, and-: A flow measuring device
13. Drawdown of a water well is determined by: Difference in static and
pumping levels
14. pH of water indicates: If it's acidic or basic
15. The pH of water is expressed on a pH scale of: 0-14
16. Water that is considered neutral is expressed on the pH
scale at: 7.0
17. Which of the following is a required Step in collecting a
routine distribution sample for bacteriological testing?: Use of an
approved, sterile sample container
, 18. Sand filtration will remove which of the following from
surface water: Turbidity
19. Activated carbon is used in a surface water plant primarily
for: Taste and odor control
