Texas TCEQ Class C Water License Surface Exam Review
Questions and Correct Answers
1. A disease that cannot be contracted by drinking contaminated water is:: -
h h h h h h h h h h h
Malaria
2. A non- h
permit confined space by OSHA standards means a confined space that:: Does not conta
h h h h h h h h h h h h h
in or have the potential to contain any hazard capable of causing death
h h h h h h h h h h h h
3. When used in connection with the Safe Drinking Water Act, the term "MCL" means:: Ma
h h h h h h h h h h h h h h
ximum Contaminant Level h h
4. Examples of non-community water systems include:: Highway rest areas
h h h h h h h h
5. The TCEQ requires that results be recorded and submitted daily for surface water suppl
h h h h h h h h h h h h h
ies for:: Disinfectant residuals, turbidity, total solids, pH, alkalinity
h h h h h h h h
6. tracking and maintaining an operator's training records is ultimately the responsibi
h h h h h h h h h h
lity of the:: Operator
h h h
7. An employee without a breathing apparatus is in a room where chlorine gas suddenly
h h h h h h h h h h h h h h
begins leaking. What should the employee do first?: Keep mouth closed, keep head as high
h h h h h h h h h h h h h h h
as possible, and quickly walk out of the room, holding their breath if possible
h h h h h h h h h h h h h
8. Before changing a gas chlorine cylinder in a room, the first step should be:: Start th
h h h h h h h h h h h h h h h
e exhaust vent fan
h h h
9. Waterworks operator's holding grade c certificates are required to renew their certif
h h h h h h h h h h h
icates every three years and to:: Inform the TCEQ of any address changes
h h h h h h h h h h h h
10. In order to insure that the water produced meets TCEQ standards, each surface wat
h h h h h h h h h h h h h
er treatment plant must have a surface water operator on duty at all times when the pla
h h h h h h h h h h h h h h h h
nt is in operation or the plant must be provided with:-
h h h h h h h h h h
: Continuous turbidity and disinfectant residual monitors, automatic alarm systems, and an a
h h h h h h h h h h h h
omatic shutdown system h h
11. The major responsibility of a certified waterworks operator is to:: Insure that a safe an
h h h h h h h h h h h h h h
d adequate supply of drinking water is delivered to the customer's tap
h h h h h h h h h h h
12. According to the TCEQ, a public water system is defined as any water sys-
h h h h h h h h h h h h h
htem that provides piped water for human consumption to at least _(a)_ service connection
h h h h h h h h h h h h h
1h/h
15
, s on a year-
h h h
round basis or regularly serves _(b)_ individuals daily at least_(c)_ days out of the year.: (
h h h h h h h h h h h h h h h
a) 15; (b) 25; (c) 60
h h h h h
13. Most of the surface water in Texas comes from:: Precipitation that falls within the state
h h h h h h h h h h h h h h
14. The most important factor in preventing accidents is:: The attitude of the employee
h h h h h h h h h h h h
15. Organics in surface water will combine with halogens to form:: Tri-
h h h h h h h h h h
hhalomethanes
2h/h
15
Questions and Correct Answers
1. A disease that cannot be contracted by drinking contaminated water is:: -
h h h h h h h h h h h
Malaria
2. A non- h
permit confined space by OSHA standards means a confined space that:: Does not conta
h h h h h h h h h h h h h
in or have the potential to contain any hazard capable of causing death
h h h h h h h h h h h h
3. When used in connection with the Safe Drinking Water Act, the term "MCL" means:: Ma
h h h h h h h h h h h h h h
ximum Contaminant Level h h
4. Examples of non-community water systems include:: Highway rest areas
h h h h h h h h
5. The TCEQ requires that results be recorded and submitted daily for surface water suppl
h h h h h h h h h h h h h
ies for:: Disinfectant residuals, turbidity, total solids, pH, alkalinity
h h h h h h h h
6. tracking and maintaining an operator's training records is ultimately the responsibi
h h h h h h h h h h
lity of the:: Operator
h h h
7. An employee without a breathing apparatus is in a room where chlorine gas suddenly
h h h h h h h h h h h h h h
begins leaking. What should the employee do first?: Keep mouth closed, keep head as high
h h h h h h h h h h h h h h h
as possible, and quickly walk out of the room, holding their breath if possible
h h h h h h h h h h h h h
8. Before changing a gas chlorine cylinder in a room, the first step should be:: Start th
h h h h h h h h h h h h h h h
e exhaust vent fan
h h h
9. Waterworks operator's holding grade c certificates are required to renew their certif
h h h h h h h h h h h
icates every three years and to:: Inform the TCEQ of any address changes
h h h h h h h h h h h h
10. In order to insure that the water produced meets TCEQ standards, each surface wat
h h h h h h h h h h h h h
er treatment plant must have a surface water operator on duty at all times when the pla
h h h h h h h h h h h h h h h h
nt is in operation or the plant must be provided with:-
h h h h h h h h h h
: Continuous turbidity and disinfectant residual monitors, automatic alarm systems, and an a
h h h h h h h h h h h h
omatic shutdown system h h
11. The major responsibility of a certified waterworks operator is to:: Insure that a safe an
h h h h h h h h h h h h h h
d adequate supply of drinking water is delivered to the customer's tap
h h h h h h h h h h h
12. According to the TCEQ, a public water system is defined as any water sys-
h h h h h h h h h h h h h
htem that provides piped water for human consumption to at least _(a)_ service connection
h h h h h h h h h h h h h
1h/h
15
, s on a year-
h h h
round basis or regularly serves _(b)_ individuals daily at least_(c)_ days out of the year.: (
h h h h h h h h h h h h h h h
a) 15; (b) 25; (c) 60
h h h h h
13. Most of the surface water in Texas comes from:: Precipitation that falls within the state
h h h h h h h h h h h h h h
14. The most important factor in preventing accidents is:: The attitude of the employee
h h h h h h h h h h h h
15. Organics in surface water will combine with halogens to form:: Tri-
h h h h h h h h h h
hhalomethanes
2h/h
15
