TCEQ class c water license EXAM NEWEST 2026
(GRADED A+ 100% DETAILED VERIFIED ANSWERS)
The rules and regulations for Public Water Systems states that minimum pressures in all
water distribution systems must not be less than 20psi and that normal operating pressures
must not be less than- - ANSWER✅ 35psi
TCEQ rules require that water systems maintain a minimum of ____ psi throughout the
distribution system under normal operating conditions and shall not be less than ___ psi in
emergencies - ANSWER✅ 35/20
A non permit confined space by OSHA standards means a confined space that- -
ANSWER✅ Does not contain or have the potential to contain any hazard capable of causing
death
Examples of non-community (non-transient) water systems include- - ANSWER✅ Highway
rest areas, RV park, Service stations, Hotel/Motel
An employee without a breathing apparatus is in a room where chlorine gas suddenly begins
leaking. What should the employee do first? - ANSWER✅ Keep mouth closed, keep head as
high as possible, and quickly walk out of the room, holding his breath if possible.
,Waterworks operators holding grade C certificates are required to renew their certificates
every three years and to: - ANSWER✅ inform TCEQ of any address changes.
What responsibility does an operator with a C license have? - ANSWER✅ Keep up with
renewal criteria, and notification of address change.
The major responsibility of a certified waterworks operator is to- - ANSWER✅ Insure that
a safe and adequate supply of drinking water is delivered to the customers tap.
What is the proper way to flow test and check pressure? - ANSWER✅ Fire hydrant.
At what PH does water become considered acidic? - ANSWER✅ 5.5
Which pH measurements would indicate that water is basic- - ANSWER✅ 8.3
a pH reading of 6.0 in raw water indicates that the sample is what? - ANSWER✅ Acidic
If any organic matter is added during repair or installation? - ANSWER✅ Detreated cl2
Maintaining the minimum of operating pressure in the distribution system helps prevent -
ANSWER✅ Cross Connection
Customer complaints
Waterborne Diseases
,Backflow contamination
Air in the distribution system
The purpose of water mains is- - ANSWER✅ To transport water throughout the system
To provide water for fire protection
To reduce the number of private wells within a providers service area
To insure customers have a water source.
All of the above
It is recommended that all underground main line valves be operated at least- - ANSWER✅
Yearly/Annually
If an operator enters a well house and hears a noise coming from the pump that sounds like
pinging or gravel being pumped; more than likely the pump has- - ANSWER✅ Cavitation
If 2 towers are connected in your system what valve would be best used? - ANSWER✅
Altitude
An altitude valve is used to- - ANSWER✅ Control the water elevation in an elevated
storage tank.
Two pressure gauges at the foot of two storage tanks are at the same elevation. The water
levels in the two tanks are the same, but tank X holds 1,000,000 gallons of water and tank Y
, holds 500,000 gallons. The gauge on tank X will have a reading of- - ANSWER✅ The same
as that of tank Y
From the center line of pump outlet to the highest pumping altitude is considered- -
ANSWER✅ Head
What is an approved TCEQ method to prevent cross connection? - ANSWER✅ Air Gap
what is the only approved method for cross-connection control? - ANSWER✅ an air gap
After installation or repair of a water line it should be treated with- - ANSWER✅ 50mg/L
of chlorine for 24hrs
When you install a new line what is the proper procedure to put in service? - ANSWER✅
Pressure test, flush, chlorinate, flush, sample
When a section of water main is replaced, any organic material allowed to remain inside the
pipe will- - ANSWER✅ Increase chlorine demand, and decrease chlorine residual.
What can cause pump vibration? - ANSWER✅ Misalignment
What is the best way to prolong this life of a centrifugal pump? - ANSWER✅ Power and
sizing
(GRADED A+ 100% DETAILED VERIFIED ANSWERS)
The rules and regulations for Public Water Systems states that minimum pressures in all
water distribution systems must not be less than 20psi and that normal operating pressures
must not be less than- - ANSWER✅ 35psi
TCEQ rules require that water systems maintain a minimum of ____ psi throughout the
distribution system under normal operating conditions and shall not be less than ___ psi in
emergencies - ANSWER✅ 35/20
A non permit confined space by OSHA standards means a confined space that- -
ANSWER✅ Does not contain or have the potential to contain any hazard capable of causing
death
Examples of non-community (non-transient) water systems include- - ANSWER✅ Highway
rest areas, RV park, Service stations, Hotel/Motel
An employee without a breathing apparatus is in a room where chlorine gas suddenly begins
leaking. What should the employee do first? - ANSWER✅ Keep mouth closed, keep head as
high as possible, and quickly walk out of the room, holding his breath if possible.
,Waterworks operators holding grade C certificates are required to renew their certificates
every three years and to: - ANSWER✅ inform TCEQ of any address changes.
What responsibility does an operator with a C license have? - ANSWER✅ Keep up with
renewal criteria, and notification of address change.
The major responsibility of a certified waterworks operator is to- - ANSWER✅ Insure that
a safe and adequate supply of drinking water is delivered to the customers tap.
What is the proper way to flow test and check pressure? - ANSWER✅ Fire hydrant.
At what PH does water become considered acidic? - ANSWER✅ 5.5
Which pH measurements would indicate that water is basic- - ANSWER✅ 8.3
a pH reading of 6.0 in raw water indicates that the sample is what? - ANSWER✅ Acidic
If any organic matter is added during repair or installation? - ANSWER✅ Detreated cl2
Maintaining the minimum of operating pressure in the distribution system helps prevent -
ANSWER✅ Cross Connection
Customer complaints
Waterborne Diseases
,Backflow contamination
Air in the distribution system
The purpose of water mains is- - ANSWER✅ To transport water throughout the system
To provide water for fire protection
To reduce the number of private wells within a providers service area
To insure customers have a water source.
All of the above
It is recommended that all underground main line valves be operated at least- - ANSWER✅
Yearly/Annually
If an operator enters a well house and hears a noise coming from the pump that sounds like
pinging or gravel being pumped; more than likely the pump has- - ANSWER✅ Cavitation
If 2 towers are connected in your system what valve would be best used? - ANSWER✅
Altitude
An altitude valve is used to- - ANSWER✅ Control the water elevation in an elevated
storage tank.
Two pressure gauges at the foot of two storage tanks are at the same elevation. The water
levels in the two tanks are the same, but tank X holds 1,000,000 gallons of water and tank Y
, holds 500,000 gallons. The gauge on tank X will have a reading of- - ANSWER✅ The same
as that of tank Y
From the center line of pump outlet to the highest pumping altitude is considered- -
ANSWER✅ Head
What is an approved TCEQ method to prevent cross connection? - ANSWER✅ Air Gap
what is the only approved method for cross-connection control? - ANSWER✅ an air gap
After installation or repair of a water line it should be treated with- - ANSWER✅ 50mg/L
of chlorine for 24hrs
When you install a new line what is the proper procedure to put in service? - ANSWER✅
Pressure test, flush, chlorinate, flush, sample
When a section of water main is replaced, any organic material allowed to remain inside the
pipe will- - ANSWER✅ Increase chlorine demand, and decrease chlorine residual.
What can cause pump vibration? - ANSWER✅ Misalignment
What is the best way to prolong this life of a centrifugal pump? - ANSWER✅ Power and
sizing
