TCEQ class c water license exam Newest 2026-2027 Actual

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TCEQ class c water license exam Newest 2026-2027 Actual Exam With Complete Questions And Correct Detailed Answers (Verified Answers) |Already Graded A+

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 - CORRECT

ANSWER-35/20

Maintaining the minimum of operating pressure in the distribution system helps prevent - CORRECT ANSWER -Cross Connection Customer complaints Waterborne Diseases Backflow contamination Air in the distribution system

The purpose of water mains is- - CORRECT 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 1 / 4

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It is recommended that all underground main line valves be operated at least- - CORRECT 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- - CORRECT ANSWER -Cavitation

If 2 towers are connected in your system what valve would be best used?

• CORRECT ANSWER -Altitude

An altitude valve is used to- - CORRECT 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- - CORRECT ANSWER-The same as that of tank Y

From the center line of pump outlet to the highest pumping altitude is considered- - CORRECT ANSWER -Head

What is an approved TCEQ method to prevent cross connection? - CORRECT ANSWER -Air Gap 2 / 4

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what is the only approved method for cross-connection control? - CORRECT ANSWER -an air gap

After installation or repair of a water line it should be treated with- - CORRECT ANSWER -50mg/L of chlorine for 24hrs

When you install a new line what is the proper procedure to put in service? - CORRECT 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- - CORRECT ANSWER -Increase chlorine demand, and decrease chlorine residual.

What can cause pump vibration? - CORRECT ANSWER -Misalignment

What is the best way to prolong this life of a centrifugal pump? - CORRECT ANSWER -Power and sizing

What is the best thing to do for digging in soil type C? - CORRECT

ANSWER-1.5:1 slope

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The indicator organisms used to determine contamination of drinking water are? - CORRECT ANSWER -Coliform group

When operating valves you don't want to operate to fast closing or opening why? - CORRECT ANSWER -Because of water hammer.

What is the main cause of line breaks? - CORRECT ANSWER - Improper bedding and back fill.

What is it called when cl2 is used in the system? - CORRECT ANSWER-Demand

The difference between the amount of chlorine added to water and the amount of residual chlorine at the end of a specified contact time is called what? - CORRECT ANSWER -Chlorine demand

The most common use of chlorine in water treatment is what? - CORRECT ANSWER -Disinfectant

A pump may be damaged if it started with the discharge valve closed, and the pump is a(n)- - CORRECT ANSWER -positive displacement pump

Velocity of flow in water mains is usually expressed in terms of- - CORRECT ANSWER -Feet per second

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