Exam (elaborations)
TCEQ class c water license exam QUESTIONS AND ANSWERS (2024/2025) (VERIFIED ANSWERS)
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TCEQ class c water license exam QUESTIONS AND ANSWERS (2024/2025) (VERIFIED ANSWERS)
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TCEQ class c water license exam1.State Agency responsince for enforcing the safe drinking water act
in Texas: Texas Commission on environmental Quality
2.What minerals can cause water hardness: Calcium and magnesium
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 water supplies are an
indica- tion that: Water supply is contaminated, harmful bacteria may be
present, possible pathogenic organisms in the water, water is
unsuitable for drinking
6.A disease that may be spread by inadequately disinfected water:
Dysentery
7.A common chemical used in disinfection of small water supply is:
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,Calcium hypochlorite
8.A physical connection between a potable water supply and house
well would be: A cross connection
9.The amount of chlorine in mg/L that is used up by reacting with iron
organics of bacteria is called: Demand
10.Which of the following is a physical characteristic of chlorine gas:
Green- ish-Yellow Color, heavier than air, pungent penetrating odor,
corrosive
11.Which of the following would be considered a part of a hypo-
chlorinator system: Solution feed pump
12.According to state requirements, all public water Supply wells should
be provided with a raised concrete sealing block, screened vents, and-: A
flow measuring device
13.Drawdown of a water well is determined by: Difference in static and
pumping levels
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, 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 the pH scale at: 7.0
17.Which of the following is a required Step in collecting a routine
distribution sample for bacteriological testing?: Use of an approved, sterile
sample container
18.Sand filtration will remove which of the following from surface water:
Tur- bidity
19.Activated carbon is used in a surface water plant primarily for: Taste
and odor control
20.Which or the following chemicals are commonly used as coagulants
in surface water treatment: Alum and ferric chloride
21.Ground storage tanks are required to provided with which of the following
: Screened vents, an approved locking roof hatch, an overflow pipe with
hinged flap device, annual inspection and maintenance as needed
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