TCEQ class c water license exam
1. State Agency responsince for enforcing the safe Texas Commission on
drinking water act in Texas environmental Quality
2. What minerals can cause water hardness Calcium and magne-
sium
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 wa- Water supply is conta-
ter supplies are an indication that minated, harmful bac-
teria may be pre-
sent, possible patho-
genic organisms in the
water, water is unsuit-
able for drinking
6. A disease that may be spread by inadequately Dysentery
disinfected water
7. A common chemical used in disinfection of small Calcium hypochlorite
water supply is
8. A physical connection between a potable water A cross connection
supply and house well would be
9. The amount of chlorine in mg/L that is used up by Demand
reacting with iron organics of bacteria is called
10. Which of the following is a physical characteristic Greenish-Yellow Col-
of chlorine gas or, heavier than air,
pungent penetrating
odor, corrosive
11. Which of the following would be considered a part Solution feed pump
of a hypo-chlorinator system
, TCEQ class c water license exam
12. According to state requirements, all public water A flow measuring de-
Supply wells should be provided with a raised vice
concrete sealing block, screened vents, and-
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 7.0
the pH scale at
17. Which of the following is a required Step in col- Use of an approved,
lecting a routine distribution sample for bacterio- sterile sample con-
logical testing? tainer
18. Sand filtration will remove which of the following Turbidity
from surface water
19. Activated carbon is used in a surface water plant Taste and odor control
primarily for
20. Which or the following chemicals are commonly Alum and ferric chlo-
used as coagulants in surface water treatment ride
21. Ground storage tanks are required to provided Screened vents, an
with which of the following approved locking roof
hatch, an overflow
pipe with hinged flap
device, annual inspec-
tion and maintenance
as needed
22. An elevated storage tank should be protected Painting, cathodic pro-
against corrosion by tection, water stabi-
lization, and only us-
ing galvanized and
, TCEQ class c water license exam
lead based primed
components
23. A public water supply system should maintain 35 psi
residual pressure of 20 psi and a minimum of
normal operating pressure of
24. Before a new or repaired water line is placed into 50 mg/L
service, it must be properly disinfected by provid-
ing a chlorine dosage of and proper
detention time
25. Water bearing formations beneath the earths sur- Aquifers
face that are used as a source of water for public
water supplies are
26. The purpose of an air line on a well is Determine Water
leves in the well
27. The mesh size is an important feature of a well Reduce the amount of
screen because properly sized openings should Sand pumped
28. When treating surface Water, the process of coag- pH, alkalinity, temper-
ularon will be most affected by the ature, and chemical
Dosage
29. A rapid sand filter should be backwashed When The loss of head
gauge indicated be-
tween 6 and 10 feet
30. Which of the following is an acceptable disinfec- 0.2 mg/L free chlo-
tion residual at the far reaches of the distribution rine residual, 0.8 mg/L
System chloramine residual
when using chlo-
ramine treatment, 0.5
mg/L chloramine for
surface water supply,
0.5 mg/L free chlorine
residual for ground
water Supply
1. State Agency responsince for enforcing the safe Texas Commission on
drinking water act in Texas environmental Quality
2. What minerals can cause water hardness Calcium and magne-
sium
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 wa- Water supply is conta-
ter supplies are an indication that minated, harmful bac-
teria may be pre-
sent, possible patho-
genic organisms in the
water, water is unsuit-
able for drinking
6. A disease that may be spread by inadequately Dysentery
disinfected water
7. A common chemical used in disinfection of small Calcium hypochlorite
water supply is
8. A physical connection between a potable water A cross connection
supply and house well would be
9. The amount of chlorine in mg/L that is used up by Demand
reacting with iron organics of bacteria is called
10. Which of the following is a physical characteristic Greenish-Yellow Col-
of chlorine gas or, heavier than air,
pungent penetrating
odor, corrosive
11. Which of the following would be considered a part Solution feed pump
of a hypo-chlorinator system
, TCEQ class c water license exam
12. According to state requirements, all public water A flow measuring de-
Supply wells should be provided with a raised vice
concrete sealing block, screened vents, and-
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 7.0
the pH scale at
17. Which of the following is a required Step in col- Use of an approved,
lecting a routine distribution sample for bacterio- sterile sample con-
logical testing? tainer
18. Sand filtration will remove which of the following Turbidity
from surface water
19. Activated carbon is used in a surface water plant Taste and odor control
primarily for
20. Which or the following chemicals are commonly Alum and ferric chlo-
used as coagulants in surface water treatment ride
21. Ground storage tanks are required to provided Screened vents, an
with which of the following approved locking roof
hatch, an overflow
pipe with hinged flap
device, annual inspec-
tion and maintenance
as needed
22. An elevated storage tank should be protected Painting, cathodic pro-
against corrosion by tection, water stabi-
lization, and only us-
ing galvanized and
, TCEQ class c water license exam
lead based primed
components
23. A public water supply system should maintain 35 psi
residual pressure of 20 psi and a minimum of
normal operating pressure of
24. Before a new or repaired water line is placed into 50 mg/L
service, it must be properly disinfected by provid-
ing a chlorine dosage of and proper
detention time
25. Water bearing formations beneath the earths sur- Aquifers
face that are used as a source of water for public
water supplies are
26. The purpose of an air line on a well is Determine Water
leves in the well
27. The mesh size is an important feature of a well Reduce the amount of
screen because properly sized openings should Sand pumped
28. When treating surface Water, the process of coag- pH, alkalinity, temper-
ularon will be most affected by the ature, and chemical
Dosage
29. A rapid sand filter should be backwashed When The loss of head
gauge indicated be-
tween 6 and 10 feet
30. Which of the following is an acceptable disinfec- 0.2 mg/L free chlo-
tion residual at the far reaches of the distribution rine residual, 0.8 mg/L
System chloramine residual
when using chlo-
ramine treatment, 0.5
mg/L chloramine for
surface water supply,
0.5 mg/L free chlorine
residual for ground
water Supply
