Class D Water Operator License Exam
TCEQ
_______ is the ultimate remedy step earlier than storage. - ANS-Disinfection
_________ lets in the owner of a well to pump as a great deal water as desired, even if the
water is drained from underneath the land of others. - ANS-Rule of Capture
"Potable" approach water is secure to drink and has a measurable chlorine ________. -
ANS-Residual
A BacT pattern, taken from a newly built nicely, on ____ consecutive days, need to show
negative consequences. - ANS-three
A certain group of micro organism is used to indicate the viable presence of a pathogen--- the
________ institution. - ANS-Coliform
A commonplace chemical used for disinfecting a small public water supply is:
a) soda ash
b) copper sulfate
c) sodium hypochlorite
d) fluoride
e) sodium chloride - ANS-c) sodium hypochlorite
A common sort of oxidant that is used at most SW remedy flora to kill bacteria and to prevent
trihalomethane formation is:
a) general chlorine
b) blended chlorine
c) chlorine dioxide
d) free chlorine
e) ozonation - ANS-b) combined chlorine
A restricted area entry crew consists of a supervisor, an attendant, and a licensed _________. -
ANS-entrant
A complete-face self-contained respiration equipment or supplied air respirator must be readily
accessible out of doors the fire station when chlorine gasoline is used. - ANS-False (A full-face
self-contained breathing equipment (SCBA) or supplied air respirator that meets OSHA
standards will be effectively available outdoor the *chlorinator room* whilst chlorine gas is used.)
, A true protection application ought to have management leadership, employee participation, risk
identity, training, and ____________. - ANS-device
A potable water supply:
a) is free of pathogenic organisms
b) has an good enough chlorine residual
c) consists of a safe stage of chemical substances
d) all the above
e) is observed best in community type water systems - ANS-d) all the above
A PWS is answerable for offering:
a) potable water
b) adequate water strain
c) an adequate amount of water
d) all of the above
e) tender water - ANS-d) all the above
A constrained sector of ______ ft radius from the raw water consumption have to be installed
and recreational sports and trespassing will be prohibited. - ANS-two hundred
A carrier location has one thousand carrier connections. What are we able to estimate the
populace of this carrier region to be? - ANS-three,000 (multiply connections x three)
A nicely drilled right into a water table aquifer is often a ______ well. - ANS-Shallow
Abandoned wells, no longer plugged, within ___ mile of a proposed properly web page have to
be mentioned to TCEQ. - ANS-1/4
According to nation policies, all PWS wells have to be furnished with concrete sealing slabs,
screened casing vents, uncooked water sampling taps and:
a) liquid degree indicators
b) surge suppressors
c) glide measuring devices
d) fluoridation injection equipment
e) strain gauges - ANS-c) flow measuring devices
All PWS in Texas are required to use ________ because the final disinfectant. - ANS-chlorine
An alkaline or primary solution has a pH greater than ____. - ANS-7
An improved storage tank need to be blanketed in opposition to corrosion by means of:
a) painting
b) cathodic safety
c) water stabilization
TCEQ
_______ is the ultimate remedy step earlier than storage. - ANS-Disinfection
_________ lets in the owner of a well to pump as a great deal water as desired, even if the
water is drained from underneath the land of others. - ANS-Rule of Capture
"Potable" approach water is secure to drink and has a measurable chlorine ________. -
ANS-Residual
A BacT pattern, taken from a newly built nicely, on ____ consecutive days, need to show
negative consequences. - ANS-three
A certain group of micro organism is used to indicate the viable presence of a pathogen--- the
________ institution. - ANS-Coliform
A commonplace chemical used for disinfecting a small public water supply is:
a) soda ash
b) copper sulfate
c) sodium hypochlorite
d) fluoride
e) sodium chloride - ANS-c) sodium hypochlorite
A common sort of oxidant that is used at most SW remedy flora to kill bacteria and to prevent
trihalomethane formation is:
a) general chlorine
b) blended chlorine
c) chlorine dioxide
d) free chlorine
e) ozonation - ANS-b) combined chlorine
A restricted area entry crew consists of a supervisor, an attendant, and a licensed _________. -
ANS-entrant
A complete-face self-contained respiration equipment or supplied air respirator must be readily
accessible out of doors the fire station when chlorine gasoline is used. - ANS-False (A full-face
self-contained breathing equipment (SCBA) or supplied air respirator that meets OSHA
standards will be effectively available outdoor the *chlorinator room* whilst chlorine gas is used.)
, A true protection application ought to have management leadership, employee participation, risk
identity, training, and ____________. - ANS-device
A potable water supply:
a) is free of pathogenic organisms
b) has an good enough chlorine residual
c) consists of a safe stage of chemical substances
d) all the above
e) is observed best in community type water systems - ANS-d) all the above
A PWS is answerable for offering:
a) potable water
b) adequate water strain
c) an adequate amount of water
d) all of the above
e) tender water - ANS-d) all the above
A constrained sector of ______ ft radius from the raw water consumption have to be installed
and recreational sports and trespassing will be prohibited. - ANS-two hundred
A carrier location has one thousand carrier connections. What are we able to estimate the
populace of this carrier region to be? - ANS-three,000 (multiply connections x three)
A nicely drilled right into a water table aquifer is often a ______ well. - ANS-Shallow
Abandoned wells, no longer plugged, within ___ mile of a proposed properly web page have to
be mentioned to TCEQ. - ANS-1/4
According to nation policies, all PWS wells have to be furnished with concrete sealing slabs,
screened casing vents, uncooked water sampling taps and:
a) liquid degree indicators
b) surge suppressors
c) glide measuring devices
d) fluoridation injection equipment
e) strain gauges - ANS-c) flow measuring devices
All PWS in Texas are required to use ________ because the final disinfectant. - ANS-chlorine
An alkaline or primary solution has a pH greater than ____. - ANS-7
An improved storage tank need to be blanketed in opposition to corrosion by means of:
a) painting
b) cathodic safety
c) water stabilization
