Dane's Review for Texas Class D Water License 2024-2025. Questions & Verified Answers, Exams of Water and Wastewater Engineering

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Dane's Review for Texas Class D Water

License 2024-2025. Questions & Correct

Verified Answers. Graded A

"Stuffers" sent to customers in billing statements may contain_______. A. Departments to call for service B. Explanations of utility policy C. A history of the utility D. Tips on water conservation E. All the above - ANSE. All the above A federal agency impacting the water utility industry is the_______. A. TCEQ B. EPA C. TEEX D. OSHA - ANSB. EPA A gallon of water weighs eight. 34 pounds and one mg/L equals one_____. A. Million grams B. Thousand grams C. Part per thousand D. Part per million - ANSD. Part per million

A sample for physical and chemical analysis must be taken after ________ hours of pumping. A. 3 B. 6 C. 36 D. 63 - ANSC. 36 A sanitary control easement must cover land within ________ feet of a public well. A. 15, B. 1500 C. 150 D. 15 - ANSC. 15 A well may be developed by surging, overpumping, jetting, and______. A. Backwashing B. Backflushing C. Back flooding D. Backfilling - ANSA. Backwashing All public water systems are required to employ licensed operators even if the system only_______ treated water bought from another source. A. Chlorinates

B. Sells C. Redistributes D. Stores - ANSC. Redistributes Changes in well water levels or the volume of water produced can alert the operator to a drop in the water table, screen stoppage, or damage to the________. A. Sealing block B. Pump C. Vent D. Sampling faucet - ANSB. Pump Chemical characteristics include hardness, pH, solids, and________. A. Gases B. Taste C. Temperature D. Color - ANSA.gases Chemically, water is made of________. A. One atom of water B. One atom of hydrogen and one atom of oxygen C. Two atoms of hydrogen and one atom of oxygen D. One atom of hydrogen and two atoms of oxygen - ANSC. Two atoms of hydrogen and one atom of oxygen

Color in a public water supply should be ________. A. At least 15 units B. Less than three units C. Less than 15 units D. Red - ANSc. less than 15 units Common deep well pumps include the ________ and the vertical turbine. A. Submarine B. Subsidence C. Submission D. Submersible - ANSD. Submersible Delinquent payment notices should be ________. A. tactful and tasteful B. Mailed in an envelope C. Business like D. All listed - ANSD. All listed EPA requires community water systems to provide customers with a________ Report on the systems water quality. A. Weekly B. Monthly C. Yearly

D. None listed - ANSC. Yearly Examples of community water systems include _______. A. Municipalities B. Municipal utility districts C. Rural water supply corporations D. Mobile home parks E. All the above - ANSE. All the above Excessive amounts of fluoride may cause_______ or staining of teeth. A. Mottling B. Molding C. Cracking D. Yellowing - ANSA.mottling Excessive nitrates in drinking water can cause_______ syndrome in infants. A. Bad baby B. Blue body C. Bloody baby D. Blue baby - ANSD. Blue baby Feedlots, sewage treatment plants and landfills must be at least ________ feet from a public well. A.

B.

C.5,

D.50,000 - ANSB.

Follow up with a phone call or________ to make sure everything is satisfactory. A. Postcard B. Email C. Letter D. A and B - ANSD. A and B Gases such as methane, carbon dioxide and hydrogen sulfide are reduced by_______. A. Backwashing B. Sequestering C. Aeration D. Softening - ANSC. Aeration Good treatment of employees includes fair wages, benefits and _________ working conditions. A. Tense B. Safe C. Hazardous D. Insecure - ANSB. Safe

Ground water usually more dissolved minerals and gases than surface water, but fewer_____. A. Microorganics B. Microorganisms C. Corrosives D. Dissolved solids - ANSB. Microorganisms Hydrogen sulfide is heavier than air, colorless, flammable, toxic, and has a________odor. A.sweet B.rotten egg C.rotten fish D.fragrant - ANSB.rotten egg If these reports are attractive and easy to ________ they can build goodwill and trust with the customer. A. Misinterpret B. Misconstrue C. Misunderstand D. Understand - ANSD. Understand In a water table well, the cone of depression is a _______ area around the well. A. Dewatered

B. Depressed C. Deflated D. Developed - ANSA. Dewatered In small water systems the operator is often_____. A. Meter reader, repair crew, and pump operator B. The highest paid employee C. A college graduate D. All listed - ANSA. Meter reader, repair crew, and pump operator In Texas, water operator licensing is administered by the _________. A. EPA B. TCEQ C. TEEX D. OSHA - ANSB. TCEQ Listen to special requests and seek solutions to oblige the customer within_____. A. Utility policy B. Five working days C. Tradition D. Secrecy - ANSA. Utility policy Livestock and septic tanks must be no closer than_____ Feet to a public well. A. 5000

B. 500

C. 50

D. Five - ANSc. 50 Most ground water is relatively free of suspended matter, but______Can be a major problem and surface water. A. Turbidity B. Gases C. Sand D. Hot water - ANSA. Turbidity One of the most important purposes of a public water supply is_______. A. Swimming B. Landscape watering C. Car washing D. Fire fighting - ANSD. Fire fighting Organic matter includes_______. A. Sand B. Plants, animals, and humans C. Minerals D. All listed - ANSB. Plants, animals, and humans Public water systems are required to compile a monthly report showing_____.

A. Rate increases B. Accidents C. Dates of dead end flushing D. Disciplinary action - ANSC. Dates of dead end flushing Public water systems include cities, municipal utility districts, rural water supply corporations, mobile home parks, and _____. A. Private Wells B. Campgrounds C. Public pools D. Public lakes - ANSB. Campgrounds Some regional and local agencies impacting the water utility industry or municipal utility district, rural water supply corporations, drainage districts,_________, groundwater conservation districts, and subsidence districts. A. School districts B. Postal districts C. Real estate agencies D. River authorities - ANSD. River authorities The action level for copper is 1.3 mg/L and for lead it is______mg/L. A. 15 B. 1. C. 0.

D. 0.15 - ANSC. 0.

The four national safety and quality standards for drinking water covered in the safe drinking water act are physical, chemical,_________, and radiological. A. Mineral B. Thermal C. Bacteriological D. Mathematical - ANSC. Bacteriological The hydrologic cycle is______. A. Natures way of recycling water B. Equipment used to measure distances C. The way water filters through the earth D. The process by which water runs into rivers and lakes - ANSA. Natures way of recycling water The most important federal law impacting the water utility industry is the _____. A. Water resources development act B. Federal water pollution control act C. Hazard communication act D. Safe drinking water act (PL93-523) - ANSD. Safe drinking water act (PL93-523) The most important treatment process is________, Which destroys disease causing organisms.

A. Filtration B. Disinfection C. Softening D. Fluoridation - ANSb. Disinfection The quality standard for public water supplies is based on the use of water for________. A. Fire fighting B. Drinking C. Bathing D. Swimming - ANSB. Drinking The state agency that regulates drinking water in Texas and administers the federal safe drinking water act is the ________. A.TCEQ B.DPS C.PUC D.TDH - ANSA. TCEQ The water utility employees 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 and D - ANSE. A and D The water utility field affects everyone because______. A. Water is used for recreation B. Water is used for agriculture C. Water is used for industry D. Water is essential to life and health - ANSD. Water is essential to life and health To disinfect a new well, a chlorine dosage of at least ________ mg/L of chlorine is required. A. B. 10 C. 25 D. 50 - ANSD. 50 Treat customers as though another water utility across the street is competing for your______. A.job B. Employees C. Customers D. Revenue - ANSC. Customers Trihalomethanes and haloacetic acids are byproducts of chlorination and may increase______risk.

A. Mottled teeth B. Red water C. Typhoid D. Cancer - ANSD.cancer True or false Operators have a responsibility to provide drinking water that meets federal and state standards. - ANSTrue True or false Water must be disinfected, delivered at inadequate pressure, and be ample in quantity. - ANSFalse True or false A public water system provides the public with piped water for human consumption, serves at least 15 service connections, and regularly serves at least 25 individuals daily at least 60 days out of the year. - ANSTrue True or false EPA requires a water system to keep a copy of each consumer confidence report at least five years. - ANSTrue True or false

The state requires bacteriological sample results be kept two years. - ANSFalse True or false The state requires chemical analysis be kept at least 10 years. - ANSTrue True or false Utility employees should guard the water supply and facilities from contamination, public tours, and even terrorism. - ANSFalse True or false the P age scale ranges from 1 to 14. - ANSFalse True or false: all public wells must be provided with a steel ceiling block, a meter, a screened vent, and a sampling faucet. - ANSFalse True or false: one way to reduce sand pumping is to increase the pump rate and cycle more. - ANSFalse True or false: the gravel pack is fine gravel placed around the screen to reduce pumping bacteria. - ANSFalse True or false: the mesh size of the screen is determined by the size of the aquifer material, the size of the gravel in the gravel pack, and the type of well development. - ANSTrue True or false: the most important feature of the well screen is the length. - ANSFalse

True or false: the water level without the pump running is called the static level, the water level with the pump running is called the pumping level, and the difference between the two is called the drop-down. - ANSFalse True or false: the well vent is a vacuum breaker allowing the casing to breathe as water levels change when the pump cycles. - ANSTrue True or false: water from a new well must not be used until bacteriological samples on three successive days show coliform found. - ANSFalse True or false: well casing and cementing protect the well from collapse and surface contamination. - ANSTrue True or false:No source of contamination is allowed within 500 feet of a public well. - ANSFalse True or false:The purpose of the well screen is to keep out birds and insects. - ANSFalse True or false? The keys to good customer relations are(1) everything the utility does is PR,(2) customers are entitled to courteous treatment,(3) every employee is a PR person.

• ANSTrue True or false? a PH of seven is neutral. - ANSTrue

True or false? All employees should be kept informed of utility plans and policies. - ANSTrue True or false? Aquifers are underground, water-bearing formations yielding useful quantities of water. - ANSTrue True or false? Before starting construction, the utility must submit engineering plans to the AWWA. - ANSFalse True or false? Color in water can result from mineral or organic matter. - ANSTrue True or false? Common gases found in water include hydrogen sulfide, carbon dioxide, methane, and sodium chloride. - ANSFalse True or false? Complaints should be treated as "griping" in investigated as a last priority. - ANSFalse True or false? Future water supplies will become more plentful according to the TCEQ. - ANSFalse True or false? Groundwater is located above the earths surface and tapped by wells. - ANSFalse True or false? It is not important that the utility have a sense of pride and professionalism. - ANSFalse

True or false? Meter readers are the persons with whom customers have the least contact. - ANSFalse True or false? Meter readers can be ambassadors of goodwill. - ANSTrue True or false? Physical characteristics of water are temperature, turbidity, color, taste, odor, and pH. - ANSFalse True or false? Problems caused by over pumping are declining water levels and subsidence. - ANSTrue True or false? Public relations is the relationship between you, the water utility Employee, and the mayor. - ANSFalse True or false? Red water caused by oxidized iron is in suspension(apparent color) And cannot be removed by filtering. - ANSFalse True or false? Surface water comes from rivers, lakes, reservoirs. - ANSTrue True or false? surface water or ground water prior to treatment is called freshwater. - ANSFalse True or false? Surface water supplies should be sampled for chemical analysis every year and groundwater supplies should be sample three times a year. - ANSFalse

True or false? Surface water systems must mail reports to the TCEQ in Austin by the fifth of the following month. - ANSFalse True or false? Suspended solids can be removed by filtering and dissolved solids cannot. - ANSTrue True or false? The hydrologic cycle is the neutral exchange of water between the earth and the atmosphere. - ANSTrue True or false? The plant operator is responsible for treating the water to a sure it is safe to drink in use. - ANSTrue True or false? The quantity of water of formation yields depends on the thickness and permeability of the formation. - ANSTrue True or false? The state must be notified about changes to public water systems involving water source, water quality, and health hazards. - ANSTrue True or false? True color is dissolved in water(in solution) And can be removed by filtration. - ANSFalse True or false? Turbidity is the amount of suspended matter such as clay, silt, organic matter, and microorganisms in the water. - ANSTrue

True or false? Water bills should be accurate, itemized, and neat, and payment should be optional. - ANSFalse True or false? Water is always found pure in nature. - ANSFalse True or false? Water occurs in three forms: solid ice, liquid water, and water vapor.

• ANSTrue True or false?Average water used depends on temperature, rainfall, cost, supply, and economic level. - ANSTrue True or false?Calcium and magnesium and other minerals cause hardness in water. - ANSTrue True or false?Maintenance crews can warm customers of service interruptions and provide signs in barriers to protect the public. - ANSTrue True or false?Operators must keep records of water usage, system pressure, sample results, chlorine used, repairs, and maintenance. - ANSTrue True or false?Potable water means the water is free of disease causing organisms, has a chlorine residual, and is safe for human consumption. - ANSTrue True or false?Taste and odor comes from algae, bacteria, organic matter, gases, and chemicals. - ANSTrue

True or false?The molecular formula for water is HO² - ANSFalse Underground fuel tanks and septic drainage fields must be at least______ feet from a public well. A. 15,000 B. 1500 C. 150 D. 15 - ANSC. 150 Water is considered hard when it exceeds_______ mg/L of calcium carbonate. A. 0.1 B. 10 C. 100 D. 1,000 - ANSC. 100 Water plant facilities should be kept neat and clean to ________. A. Indicate your professional attitude B. Keep public support C. Keep confidence in the water quality D. All listed - ANSD. All listed Water table wells are usually ________ wells. A. Deepwells B. Artesian

C. Shallow D. All listed - ANSC. Shallow Water utility system personnel are required to notify the TCEQ of changes or alterations of the system, a new facility to be built, and water supply ______. A. Rate increases B. Health hazards C. Bond elections D. Bid proposals - ANSb. Health hazards What is the reporting time of results of tests, measurements, or analysis required by the drinking water standards? - ANSMust be reported within 10 days following test, measurement, or analysis What is the retention/reporting time for an action taken to correct violations of primary drinking water regulations? - ANSThree years after last action taken with respect to particular violation involved What is the retention/reporting time for bacteriological analysis? - ANSFive years What is the retention/reporting time for chemical analysis? - ANS10 years What is the retention/reporting time for consumer confidence reports? (EPA required) - ANSA copy of each for five years

What is the retention/reporting time for variance or exception granted? - ANSFive years following the expiration of such variance or exemption What is the retention/reporting time for written reports, summaries, or communications relating to sanitary surveys conducted by system, consultant, or the commission? - ANS10 years after completion of the survey involved