Class D Water Operator License Exam
TCEQ
_______ is the final remedy step before garage. - ANS-Disinfection
_________ allows the proprietor of a well to pump as a whole lot water as favored, although the
water is tired from underneath the land of others. - ANS-Rule of Capture
"Potable" means water is safe to drink and has a measurable chlorine ________. -
ANS-Residual
A BacT pattern, taken from a newly constructed nicely, on ____ consecutive days, should
display negative effects. - ANS-three
A sure organization of micro organism is used to signify the feasible presence of a pathogen---
the ________ organization. - ANS-Coliform
A not unusual chemical used for disinfecting a small public water deliver is:
a) soda ash
b) copper sulfate
c) sodium hypochlorite
d) fluoride
e) sodium chloride - ANS-c) sodium hypochlorite
A commonplace sort of oxidant this is used at most SW treatment vegetation to kill bacteria and
to prevent trihalomethane formation is:
a) total chlorine
b) blended chlorine
c) chlorine dioxide
d) loose chlorine
e) ozonation - ANS-b) mixed chlorine
A restrained space entry crew consists of a supervisor, an attendant, and an authorized
_________. - ANS-entrant
A complete-face self-contained breathing equipment or furnished air respirator have to be
without problems reachable out of doors the hearth station when chlorine fuel is used. -
ANS-False (A full-face self-contained breathing equipment (SCBA) or supplied air respirator that
, meets OSHA requirements shall be without problems reachable outdoor the *chlorinator room*
while chlorine gas is used.)
A suitable safety program should have management management, employee participation,
threat identity, training, and ____________. - ANS-system
A potable water supply:
a) is free of pathogenic organisms
b) has an adequate chlorine residual
c) incorporates a secure level of chemical compounds
d) all of the above
e) is discovered most effective in network kind water structures - ANS-d) all of the above
A PWS is liable for imparting:
a) potable water
b) adequate water stress
c) an good enough amount of water
d) all the above
e) gentle water - ANS-d) all the above
A confined area of ______ ft radius from the raw water consumption have to be established and
leisure sports and trespassing will be prohibited. - ANS-two hundred
A service region has one thousand carrier connections. What are we able to estimate the
populace of this provider location to be? - ANS-three,000 (multiply connections x 3)
A nicely drilled right into a water desk aquifer is mostly a ______ properly. - ANS-Shallow
Abandoned wells, now not plugged, within ___ mile of a proposed nicely website online have to
be suggested to TCEQ. - ANS-1/4
According to country policies, all PWS wells have to be provided with concrete sealing slabs,
screened casing vents, raw water sampling taps and:
a) liquid level indicators
b) surge suppressors
c) drift measuring devices
d) fluoridation injection equipment
e) pressure gauges - ANS-c) glide measuring gadgets
All PWS in Texas are required to use ________ because the very last disinfectant. -
ANS-chlorine
An alkaline or primary solution has a pH extra than ____. - ANS-7
TCEQ
_______ is the final remedy step before garage. - ANS-Disinfection
_________ allows the proprietor of a well to pump as a whole lot water as favored, although the
water is tired from underneath the land of others. - ANS-Rule of Capture
"Potable" means water is safe to drink and has a measurable chlorine ________. -
ANS-Residual
A BacT pattern, taken from a newly constructed nicely, on ____ consecutive days, should
display negative effects. - ANS-three
A sure organization of micro organism is used to signify the feasible presence of a pathogen---
the ________ organization. - ANS-Coliform
A not unusual chemical used for disinfecting a small public water deliver is:
a) soda ash
b) copper sulfate
c) sodium hypochlorite
d) fluoride
e) sodium chloride - ANS-c) sodium hypochlorite
A commonplace sort of oxidant this is used at most SW treatment vegetation to kill bacteria and
to prevent trihalomethane formation is:
a) total chlorine
b) blended chlorine
c) chlorine dioxide
d) loose chlorine
e) ozonation - ANS-b) mixed chlorine
A restrained space entry crew consists of a supervisor, an attendant, and an authorized
_________. - ANS-entrant
A complete-face self-contained breathing equipment or furnished air respirator have to be
without problems reachable out of doors the hearth station when chlorine fuel is used. -
ANS-False (A full-face self-contained breathing equipment (SCBA) or supplied air respirator that
, meets OSHA requirements shall be without problems reachable outdoor the *chlorinator room*
while chlorine gas is used.)
A suitable safety program should have management management, employee participation,
threat identity, training, and ____________. - ANS-system
A potable water supply:
a) is free of pathogenic organisms
b) has an adequate chlorine residual
c) incorporates a secure level of chemical compounds
d) all of the above
e) is discovered most effective in network kind water structures - ANS-d) all of the above
A PWS is liable for imparting:
a) potable water
b) adequate water stress
c) an good enough amount of water
d) all the above
e) gentle water - ANS-d) all the above
A confined area of ______ ft radius from the raw water consumption have to be established and
leisure sports and trespassing will be prohibited. - ANS-two hundred
A service region has one thousand carrier connections. What are we able to estimate the
populace of this provider location to be? - ANS-three,000 (multiply connections x 3)
A nicely drilled right into a water desk aquifer is mostly a ______ properly. - ANS-Shallow
Abandoned wells, now not plugged, within ___ mile of a proposed nicely website online have to
be suggested to TCEQ. - ANS-1/4
According to country policies, all PWS wells have to be provided with concrete sealing slabs,
screened casing vents, raw water sampling taps and:
a) liquid level indicators
b) surge suppressors
c) drift measuring devices
d) fluoridation injection equipment
e) pressure gauges - ANS-c) glide measuring gadgets
All PWS in Texas are required to use ________ because the very last disinfectant. -
ANS-chlorine
An alkaline or primary solution has a pH extra than ____. - ANS-7
