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TCEQ CLASS D WATER OPERATOR LICENSE EXAM NEWEST ACTUAL EXAM COMPLETE 180 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+$29.49
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TCEQ CLASS D WATER OPERATOR LICENSE
EXAM NEWEST 2024-2025 ACTUAL EXAM
COMPLETE 180 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
T/F: Primary components of a gas feed chlorinator include an
injector, flowrate controller, rotameter, and mixing tank. -
CORRECT ANSWER-False (injector, vacuum regulator,
flowrate controller, rotameter- *not a mixing tank*)
The maximum sustained gas withdrawal rate for pressure
transmission 150 lb cylinders is ____ lbs/day - CORRECT
ANSWER-40
T/F: Utility operators use chlorine in three commercial forms:
1) pure chlorine in the liquid or gas state
2) bleach solutions
3) granular/tablet compounds - CORRECT ANSWER-True
,2|Page
T/F: If chlorine contacts the skin, flush with an emergency
shower or garden hose for at least an hour. - CORRECT
ANSWER-False (15 minutes)
Hypochlorous acid is the disinfectant and the _____ residual. -
CORRECT ANSWER-Free
If a major chlorine leak occurs, call the supplier and ______. -
CORRECT ANSWER-TCEQ
The rotameter indicates the feed rate in _____ per day -
CORRECT ANSWER-pounds
T/F: Chlorine reacts with hydrocarbons producing heat or fire -
CORRECT ANSWER-True
Chlorinator rooms must be provided with facilities from
determining the amount of disinfectant used _______ -
CORRECT ANSWER-daily
T/F: Dosage is the amount of chlorine applied in milligrams per
liter or parts per billion. - CORRECT ANSWER-False (parts per
million)
,3|Page
DPD reacts with chlorine producing a pink to ____ color. -
CORRECT ANSWER-red
T/F: Residual is the amount of chlorine left after the demand is
met. - CORRECT ANSWER-True (Dosage: How much Cl you
put in the system, Demand: How much Cl is used by the system,
Residual: How much Cl is left over)
T/F: TCEQ requires a faucet for raw water sampling on the
discharge pipe of each PWS well. - CORRECT ANSWER-True
Permeability is the ability to _____ water through the aquifer. -
CORRECT ANSWER-transmit
T/F: The difference between the static level and pumping level
is call the drawdown. - CORRECT ANSWER-True
Wells dug into artesian aquifers are considered _____ wells. -
CORRECT ANSWER-deep
The well screen prevents _____ from entering the well. -
CORRECT ANSWER-sand
, 4|Page
T/F: Treatment of corrosive groundwater can be accomplished
by adding alkalinity as lime or soda ash to adjust the pH. -
CORRECT ANSWER-True
T/F: The line shaft turbine is driven by a motor located above
the pump at ground level. - CORRECT ANSWER-True
T/F: Well casing supports the bore hole and helps protect the
aquifer from contamination. - CORRECT ANSWER-True
T/F: The State requires a physical and chemical analysis of the
water after 24 hours of pumping. - CORRECT ANSWER-False
(36 hours)
T/F: Some artesian aquifer recharge areas (outcrop) are located
many miles away from the well development site. - CORRECT
ANSWER-True (Artesian Wells can be recharged from many
miles away)
A BacT sample, taken from a newly constructed well, on ____
consecutive days, must show negative results. - CORRECT
ANSWER-3
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