Class "C" Water Exam/Key Questions with 100%
Correct Answers.
Practice questions for this set
Learn 1/ 7 Study with Learn
A certified operator is doing his/her routine daily check of wells, pumps, and
storage facilities discovers a cut lock on the entry gate, there is also a cut lock
on the roof hatch to the storage tank and suspicious looking containers lying
on the ground that does not belong. What should the operator do?
Choose matching term
1 Coliform
2 Jar test
3 Blue babies
, Immediately notify TCEQ Regional Office and they will notify law enforcement and
investigate to determine if there is a danger or threat to public health and safety
4
Pull the electrical disconnect on the pumps and close valves isolating the tank until it
can be analyzed
Don't know?
Terms in this set (165)
Calcium Hypochlorite A common chemical used in the disenfection of a small
water supply is-
A Cross Connection A physical connection between a potable water supply and a
house well would be-
Demand The amount of Chlorine in mg/L that is used by reacting with
iron, organics, or bacteria is called?
Greenish Yellow color All of the following are Physical characteristics of
Heavier than air Chlorine gas-
Pungent, Penetrating odor
Corrosive
Solution feed pump Which of the following would be considered a part of a hypo-
chlorinator system?
Flow measuring device According to state requirements, all public water supply
wells should be provided with a raised concrete sealing
block, screened vents and-
The difference in static and The drawdown of a water well is determined by-
pumping levels
If it is more acidic or base The pH of water indicates-
0-14 The pH of water is expressed by a scale of numbers ranging from-
Water that is considered neutral is expressed on the pH scale
7.0
at-
, Use of an approved, sterile Which of the following is a required step in collecting a
container routine distribution sample for bacteriological testing?
Turbidity Sand filtration will remove which of the following from surface
water?
Taste and Odor control Activated Carbon is used in a Surface Water Plant primarily for?
Alum and Ferric Chloride Which of the following chemical(s) are commonly used as
coagulants in surface water treatment?
Screened Vents Ground storage tanks are required to be provided with
An approved locking roof which of the following?
hatch
An overflow pipe with
hinged flap device Annual
inspection and maintenance
as needed
Painting An elevated storage tank should be protected against corrosion by-
Cathodic protection
Water stabilization
35 psi A public water supply system should maintain residual
pressure of 20 psi and a minimum normal operating
pressure of-
50 mg/L 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.
Aquifers Water bearing formations beneath the earth's surface that
are used as a source of water for public water supplies are-
Determine water levels in The purpose of an air line on a well is-
the well
Correct Answers.
Practice questions for this set
Learn 1/ 7 Study with Learn
A certified operator is doing his/her routine daily check of wells, pumps, and
storage facilities discovers a cut lock on the entry gate, there is also a cut lock
on the roof hatch to the storage tank and suspicious looking containers lying
on the ground that does not belong. What should the operator do?
Choose matching term
1 Coliform
2 Jar test
3 Blue babies
, Immediately notify TCEQ Regional Office and they will notify law enforcement and
investigate to determine if there is a danger or threat to public health and safety
4
Pull the electrical disconnect on the pumps and close valves isolating the tank until it
can be analyzed
Don't know?
Terms in this set (165)
Calcium Hypochlorite A common chemical used in the disenfection of a small
water supply is-
A Cross Connection A physical connection between a potable water supply and a
house well would be-
Demand The amount of Chlorine in mg/L that is used by reacting with
iron, organics, or bacteria is called?
Greenish Yellow color All of the following are Physical characteristics of
Heavier than air Chlorine gas-
Pungent, Penetrating odor
Corrosive
Solution feed pump Which of the following would be considered a part of a hypo-
chlorinator system?
Flow measuring device According to state requirements, all public water supply
wells should be provided with a raised concrete sealing
block, screened vents and-
The difference in static and The drawdown of a water well is determined by-
pumping levels
If it is more acidic or base The pH of water indicates-
0-14 The pH of water is expressed by a scale of numbers ranging from-
Water that is considered neutral is expressed on the pH scale
7.0
at-
, Use of an approved, sterile Which of the following is a required step in collecting a
container routine distribution sample for bacteriological testing?
Turbidity Sand filtration will remove which of the following from surface
water?
Taste and Odor control Activated Carbon is used in a Surface Water Plant primarily for?
Alum and Ferric Chloride Which of the following chemical(s) are commonly used as
coagulants in surface water treatment?
Screened Vents Ground storage tanks are required to be provided with
An approved locking roof which of the following?
hatch
An overflow pipe with
hinged flap device Annual
inspection and maintenance
as needed
Painting An elevated storage tank should be protected against corrosion by-
Cathodic protection
Water stabilization
35 psi A public water supply system should maintain residual
pressure of 20 psi and a minimum normal operating
pressure of-
50 mg/L 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.
Aquifers Water bearing formations beneath the earth's surface that
are used as a source of water for public water supplies are-
Determine water levels in The purpose of an air line on a well is-
the well
