TCEQ class c water license exam
TCEQ class c water license exam questions
and answers 2024-2025 top graded
State Agency responsince for enforcing the safe drinking water act in Texas -Correct
Answer ✔Texas Commission on environmental Quality
What minerals can cause water hardness -Correct Answer ✔Calcium and magnesium
A public water system must at all times provide -Correct Answer ✔Adequate quantity of
water, pressure, and disinfection
A source groundwater would be -Correct Answer ✔aquifer
Fecal coliform organisms sometimes found in water supplies are an indication that -
Correct Answer ✔Water supply is contaminated, harmful bacteria may be present,
possible pathogenic organisms in the water, water is unsuitable for drinking
A disease that may be spread by inadequately disinfected water -Correct Answer
✔Dysentery
A common chemical used in disinfection of small water supply is -Correct Answer
✔Calcium hypochlorite
A physical connection between a potable water supply and house well would be -
Correct Answer ✔A cross connection
The amount of chlorine in mg/L that is used up by reacting with iron organics of bacteria
is called -Correct Answer ✔Demand
Which of the following is a physical characteristic of chlorine gas -Correct Answer
✔Greenish-Yellow Color, heavier than air, pungent penetrating odor, corrosive
Which of the following would be considered a part of a hypo-chlorinator system -Correct
Answer ✔Solution feed pump
According to state requirements, all public water Supply wells should be provided with a
raised concrete sealing block, screened vents, and- -Correct Answer ✔A flow
measuring device
Drawdown of a water well is determined by -Correct Answer ✔Difference in static and
pumping levels
pH of water indicates -Correct Answer ✔If it's acidic or basic
TCEQ class c water license exam
, TCEQ class c water license exam
The pH of water is expressed on a pH scale of -Correct Answer ✔0-14
Water that is considered neutral is expressed on the pH scale at -Correct Answer ✔7.0
Which of the following is a required Step in collecting a routine distribution sample for
bacteriological testing? -Correct Answer ✔Use of an approved, sterile sample container
Sand filtration will remove which of the following from surface water -Correct Answer
✔Turbidity
Activated carbon is used in a surface water plant primarily for -Correct Answer ✔Taste
and odor control
Which or the following chemicals are commonly used as coagulants in surface water
treatment -Correct Answer ✔Alum and ferric chloride
Ground storage tanks are required to provided with which of the following -Correct
Answer ✔Screened vents, an approved locking roof hatch, an overflow pipe with hinged
flap device, annual inspection and maintenance as needed
An elevated storage tank should be protected against corrosion by -Correct Answer
✔Painting, cathodic protection, water stabilization, and only using galvanized and lead
based primed components
A public water supply system should maintain residual pressure of 20 psi and a
minimum of normal operating pressure of -Correct Answer ✔35 psi
Before a new or repaired water line is placed into service, it must be properly disinfected
by providing a chlorine dosage of _________ and proper detention time -Correct
Answer ✔50 mg/L
Water bearing formations beneath the earths surface that are used as a source of water
for public water supplies are -Correct Answer ✔Aquifers
The purpose of an air line on a well is -Correct Answer ✔Determine Water leves in the
well
The mesh size is an important feature of a well screen because properly sized openings
should -Correct Answer ✔Reduce the amount of Sand pumped
When treating surface Water, the process of coagularon will be most affected by the -
Correct Answer ✔pH, alkalinity, temperature, and chemical Dosage
TCEQ class c water license exam
TCEQ class c water license exam questions
and answers 2024-2025 top graded
State Agency responsince for enforcing the safe drinking water act in Texas -Correct
Answer ✔Texas Commission on environmental Quality
What minerals can cause water hardness -Correct Answer ✔Calcium and magnesium
A public water system must at all times provide -Correct Answer ✔Adequate quantity of
water, pressure, and disinfection
A source groundwater would be -Correct Answer ✔aquifer
Fecal coliform organisms sometimes found in water supplies are an indication that -
Correct Answer ✔Water supply is contaminated, harmful bacteria may be present,
possible pathogenic organisms in the water, water is unsuitable for drinking
A disease that may be spread by inadequately disinfected water -Correct Answer
✔Dysentery
A common chemical used in disinfection of small water supply is -Correct Answer
✔Calcium hypochlorite
A physical connection between a potable water supply and house well would be -
Correct Answer ✔A cross connection
The amount of chlorine in mg/L that is used up by reacting with iron organics of bacteria
is called -Correct Answer ✔Demand
Which of the following is a physical characteristic of chlorine gas -Correct Answer
✔Greenish-Yellow Color, heavier than air, pungent penetrating odor, corrosive
Which of the following would be considered a part of a hypo-chlorinator system -Correct
Answer ✔Solution feed pump
According to state requirements, all public water Supply wells should be provided with a
raised concrete sealing block, screened vents, and- -Correct Answer ✔A flow
measuring device
Drawdown of a water well is determined by -Correct Answer ✔Difference in static and
pumping levels
pH of water indicates -Correct Answer ✔If it's acidic or basic
TCEQ class c water license exam
, TCEQ class c water license exam
The pH of water is expressed on a pH scale of -Correct Answer ✔0-14
Water that is considered neutral is expressed on the pH scale at -Correct Answer ✔7.0
Which of the following is a required Step in collecting a routine distribution sample for
bacteriological testing? -Correct Answer ✔Use of an approved, sterile sample container
Sand filtration will remove which of the following from surface water -Correct Answer
✔Turbidity
Activated carbon is used in a surface water plant primarily for -Correct Answer ✔Taste
and odor control
Which or the following chemicals are commonly used as coagulants in surface water
treatment -Correct Answer ✔Alum and ferric chloride
Ground storage tanks are required to provided with which of the following -Correct
Answer ✔Screened vents, an approved locking roof hatch, an overflow pipe with hinged
flap device, annual inspection and maintenance as needed
An elevated storage tank should be protected against corrosion by -Correct Answer
✔Painting, cathodic protection, water stabilization, and only using galvanized and lead
based primed components
A public water supply system should maintain residual pressure of 20 psi and a
minimum of normal operating pressure of -Correct Answer ✔35 psi
Before a new or repaired water line is placed into service, it must be properly disinfected
by providing a chlorine dosage of _________ and proper detention time -Correct
Answer ✔50 mg/L
Water bearing formations beneath the earths surface that are used as a source of water
for public water supplies are -Correct Answer ✔Aquifers
The purpose of an air line on a well is -Correct Answer ✔Determine Water leves in the
well
The mesh size is an important feature of a well screen because properly sized openings
should -Correct Answer ✔Reduce the amount of Sand pumped
When treating surface Water, the process of coagularon will be most affected by the -
Correct Answer ✔pH, alkalinity, temperature, and chemical Dosage
TCEQ class c water license exam
