Page 1 of 39
08 June 2026
TCEQ CLASS D WATER OPERATOR LICENSE EXAM
2026 WITH 250 REAL EXAM QUESTIONS AND
CORRECT ANSWERS/ TEXAS CLASS C WATER
OPERATOR EXAM 2026/2027 LATEST (NEW!!)
The water utility field touches everyone because...
A)water used for recreation
B)water used for agriculture
C)water used for industry
D)water is essential to life and health - CORRECT ANSWER-D)water essential to life and health
Thew water utility employee should remember customers are entitled to...
A)courteous treatment
B)abuse public servants
C)always be right
D)answers to questions about water
E)A&D - CORRECT ANSWER-E
Public systems utilizing ground water serving less than ___ connections on purchase treated water
only are not required to compile ___ reports.
A)50, yearly
B) 150, yearly
C) 50, monthly
D) 100, monthly - CORRECT ANSWER-D
When storms are expected, the water utility should alert personnel, check communications, fill
gasoline tanks, check emergency equipment, fill storage tanks, and ___.
A)reduce stock of repair clamps and calcium hypochlorite
B)write emergency procedures
C)isolate elevated storage
, Page 2 of 39
08 June 2026
D)insulate elevated storage - CORRECT ANSWER-C
The most common pump in the water utility field is the ___ pump.
A)deep-well turbine
B)centrifugal
C)priming
D)displacement - CORRECT ANSWER-B
Water is forced out of the volute of a centrifugal pump by ___ force.
A)velocity
B)suction
C)centrifugal
D)turbine - CORRECT ANSWER-C
Three types of pump curve are head capacity curve, efficiency curve, and ___ curve.
A)gpm
B)psi
C)voltage
D)horsepower - CORRECT ANSWER-D
As the force a pump works against increases, the capacity and efficiency...
A)increase
B)decrease
C)equalize
D)stabilize - CORRECT ANSWER-B
Install a check valve in a pup discharge line to prevent water from flowing ___ during shutdown.
A)back through the pump
B)through a cross connection
C)uphill
, Page 3 of 39
08 June 2026
D)from supply - CORRECT ANSWER-A
Common pump problems include ___ and water hammer.
A)proper alignment of pump and motor
B)air-tight suction
C)cavitation
D)unclogged impeller - CORRECT ANSWER-C
The most common motor is the ___ motor.
A)squirrel cage reduction
B)synchronous
C)squirrel cage deduction
D)squirrel cage induction - CORRECT ANSWER-D
T/F: Nine out of 10 accidents result from unsafe acts of the person injured or someone else. -
CORRECT ANSWER-True
T/F: The federal law having the greatest impact on workplace safety is the Occupational Safety and
Health Act. - CORRECT ANSWER-True
T/F: The TX Hazard Communication Act is known as the "Right to Work" law. - CORRECT
ANSWER-False (True if it was the "Right to Know" law)
T/F: A safety program must start from the bottom, then extend to the top official. - CORRECT
ANSWER-False (True if it said it must start at the top then extend to the bottom official)
T/F: Everyone must participate in a safety program or it will fail. - CORRECT ANSWER-True
T/F: A confined space is 1)large enough to enter and do work, 2) has limited or restricted entry or
exit), and 3)is not designed for continuous occupancy. - CORRECT ANSWER-True
, Page 4 of 39
08 June 2026
T/F: The #1 cause of death in a confined space is lack of oxygen. - CORRECT ANSWER-True
T/F: Combustible gases include methane, hydrogen sulfide, and carbon dioxide. - CORRECT
ANSWER-False
T/F: Cockroaches can adapt to conditions that will kill a human. - CORRECT ANSWER-True
T/F: After evaluation, confined spaces are designated "entry allowed" or "entry denied". -
CORRECT ANSWER-False
When entering a "permit required" space personnel must wear a harness and be attached to a...
A)life
B)retrieval
C)tow
D)drag - CORRECT ANSWER-B
OSHA requires an anti-fall line if a portable ladder or ___ is not used.
A)shoring
B)trench boxes
C)stairs
D)ropes - CORRECT ANSWER-C
Job training for water utility operators is available through the...
A)American Water Works Association
B)TX Water Utilities Association
C)TX Engineering Extension Service
D)all listed - CORRECT ANSWER-D
In TX, water operator license is administered by the...
08 June 2026
TCEQ CLASS D WATER OPERATOR LICENSE EXAM
2026 WITH 250 REAL EXAM QUESTIONS AND
CORRECT ANSWERS/ TEXAS CLASS C WATER
OPERATOR EXAM 2026/2027 LATEST (NEW!!)
The water utility field touches everyone because...
A)water used for recreation
B)water used for agriculture
C)water used for industry
D)water is essential to life and health - CORRECT ANSWER-D)water essential to life and health
Thew water utility employee should remember customers are entitled to...
A)courteous treatment
B)abuse public servants
C)always be right
D)answers to questions about water
E)A&D - CORRECT ANSWER-E
Public systems utilizing ground water serving less than ___ connections on purchase treated water
only are not required to compile ___ reports.
A)50, yearly
B) 150, yearly
C) 50, monthly
D) 100, monthly - CORRECT ANSWER-D
When storms are expected, the water utility should alert personnel, check communications, fill
gasoline tanks, check emergency equipment, fill storage tanks, and ___.
A)reduce stock of repair clamps and calcium hypochlorite
B)write emergency procedures
C)isolate elevated storage
, Page 2 of 39
08 June 2026
D)insulate elevated storage - CORRECT ANSWER-C
The most common pump in the water utility field is the ___ pump.
A)deep-well turbine
B)centrifugal
C)priming
D)displacement - CORRECT ANSWER-B
Water is forced out of the volute of a centrifugal pump by ___ force.
A)velocity
B)suction
C)centrifugal
D)turbine - CORRECT ANSWER-C
Three types of pump curve are head capacity curve, efficiency curve, and ___ curve.
A)gpm
B)psi
C)voltage
D)horsepower - CORRECT ANSWER-D
As the force a pump works against increases, the capacity and efficiency...
A)increase
B)decrease
C)equalize
D)stabilize - CORRECT ANSWER-B
Install a check valve in a pup discharge line to prevent water from flowing ___ during shutdown.
A)back through the pump
B)through a cross connection
C)uphill
, Page 3 of 39
08 June 2026
D)from supply - CORRECT ANSWER-A
Common pump problems include ___ and water hammer.
A)proper alignment of pump and motor
B)air-tight suction
C)cavitation
D)unclogged impeller - CORRECT ANSWER-C
The most common motor is the ___ motor.
A)squirrel cage reduction
B)synchronous
C)squirrel cage deduction
D)squirrel cage induction - CORRECT ANSWER-D
T/F: Nine out of 10 accidents result from unsafe acts of the person injured or someone else. -
CORRECT ANSWER-True
T/F: The federal law having the greatest impact on workplace safety is the Occupational Safety and
Health Act. - CORRECT ANSWER-True
T/F: The TX Hazard Communication Act is known as the "Right to Work" law. - CORRECT
ANSWER-False (True if it was the "Right to Know" law)
T/F: A safety program must start from the bottom, then extend to the top official. - CORRECT
ANSWER-False (True if it said it must start at the top then extend to the bottom official)
T/F: Everyone must participate in a safety program or it will fail. - CORRECT ANSWER-True
T/F: A confined space is 1)large enough to enter and do work, 2) has limited or restricted entry or
exit), and 3)is not designed for continuous occupancy. - CORRECT ANSWER-True
, Page 4 of 39
08 June 2026
T/F: The #1 cause of death in a confined space is lack of oxygen. - CORRECT ANSWER-True
T/F: Combustible gases include methane, hydrogen sulfide, and carbon dioxide. - CORRECT
ANSWER-False
T/F: Cockroaches can adapt to conditions that will kill a human. - CORRECT ANSWER-True
T/F: After evaluation, confined spaces are designated "entry allowed" or "entry denied". -
CORRECT ANSWER-False
When entering a "permit required" space personnel must wear a harness and be attached to a...
A)life
B)retrieval
C)tow
D)drag - CORRECT ANSWER-B
OSHA requires an anti-fall line if a portable ladder or ___ is not used.
A)shoring
B)trench boxes
C)stairs
D)ropes - CORRECT ANSWER-C
Job training for water utility operators is available through the...
A)American Water Works Association
B)TX Water Utilities Association
C)TX Engineering Extension Service
D)all listed - CORRECT ANSWER-D
In TX, water operator license is administered by the...
