TCEQ CLASS D WATER OPERATOR LICENSE EXAM AND PRACTICE EXAM NEWEST ACTUAL EXAM COMPLETE 40, Exams of Nursing

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TCEQ CLASS D WATER OPERATOR LICENSE EXAM

AND PRACTICE EXAM NEWEST ACTUAL EXAM

COMPLETE 4 00 QUESTIONS AND CORRECT

DETAILED ANSWERS (VERIFIED ANSWERS)

|ALREADY GRADED A+

T/F: Operators have a responsibility to provide drinking

water that meets Federal and State Standards - CORRECT

ANSWER True

T/F: Water must be disinfected, delivered at inadequate

pressure and be ample in quantity - CORRECT ANSWER

False (True if adequate instead of inadequate) T/F: Utility employees should guard the water supply and facilities from contamination, public tours, and even

terrorism - CORRECT ANSWER False

T/F: The state requires bacteriological sample results to be

kept 2 years. - CORRECT ANSWER False (True if 5 years)

T/F: The state requires chemical analysis to be kept at least

10 years. - CORRECT ANSWER True

T/F: The EPA requires a water system to keep a copy of each

consumer confidence report at least 5 years. - CORRECT

ANSWER True

T/F: 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 - CORRECT ANSWER

True 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

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... A)EPA B)TNRCC -- TCEQ C)AWWA

D)TWUA - CORRECT ANSWER B

All pubic water systems are required to employ certified operators even if the system only ___ treated water bought from another source. A)Chlorites B)Sells C)Redistributes

D)Stores - CORRECT ANSWER C

Public water systems include cities, municipal utility districts, rural water supply corporations, mobile home parts, and ___. A)private wells B)campgrounds C)public pools

D)public lakes - CORRECT ANSWER B

Examples of community water systems include... A)municipalities B)municipal utility districts C)rural water supply corporations D)mobile home packs

E)all the above - CORRECT ANSWER E

A federal agency impacting the water utility industry is the... A)TNRCC B)EPA C)AWWA

D)TWUA - CORRECT ANSWER B

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 - CORRECT ANSWER D

The 4 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 - CORRECT ANSWER C

The state agency that regulates drinking water in TX and administers federal Safe Drinking Water Act is the ... A)TNRCC -- TCEQ B)DPS C)PUC

D)TDH - CORRECT ANSWER A

Required notification by the water system to the TNRCC includes change or alteration of the system, a new facility to be built and water supply ___. A) rate increases B) health hazards C) bond elections

D) bid proposals - CORRECT ANSWER B

Some regional and local agencies impacting the water utility industry are municipal utility districts, rural water supply corporations, drainage districts, ________, groundwater conservation districts, and subsidence districts. A)school districts B)postal distrcits C)real estate agencies

D)river authorities - CORRECT ANSWER D

T/F: Public relations (PR) is the relationship between you,

the water utility employee, and the mayor. - CORRECT

ANSWER F

T/F: 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 - CORRECT

ANSWER True

T/F: Meter readers are the persons with whom customers

have the least contact. - CORRECT ANSWER False

T/F: Meter readers can be ambassadors of goodwill. -

CORRECT ANSWER True

T/F: Maintenance crews can warn customers of service interruptions and provide signs and barriers to protect the

public. - CORRECT ANSWER True

T/F: The plant operator is responsible for making the water

safe to drink and use. - CORRECT ANSWER True

T/F: Water bills should be accurate, itemized, neat and the

customer's option to pay. - CORRECT ANSWER False

T/F: It is not important that the utility have a sense of pride

and professionalism. - CORRECT ANSWER False

T/F: Employees should be kept informed of utility plans and

policies. - CORRECT ANSWER True

T/F: Complaints should be treating as "griping" and

investigated as a last priority. - CORRECT ANSWER False

In small water systems, the operator is often... A)a meter reader, repair crew, and pump operator B)highest paid employee C)college graduate

D)all listed - CORRECT ANSWER A

"Stuffers" sent to customers in billing statements may contain... A)departments to call for service B)explanations of utility policy C)history of the utility D)tips on water conservation

E)all of the above - CORRECT ANSWER E

Delinquent payment notices should be... A) tactful + tasteful B)mailed in envelope C)business-like

D)all listed - CORRECT ANSWER D

The EPA requires community water systems to provide customers. A)weekly B)monthly C)yearly

D)none listed - CORRECT ANSWER C

If these reporters are attractive and easy to ___, they can build goodwill and trust with the customer A)misinterpret B)misconstrue C)misunderstand

D)understand - CORRECT ANSWER D

Good treatment of employees include fair wages, benefits, and ___ working conditions. A)tense B)safe C)hazardous

D)insecure - CORRECT ANSWER B

After action is taken on a complaint, follow up with a phone call or ___ to make sure everything is satisfactory. A)post card B)e-mail

C)letter D)A&B

E)A,B,&C - CORRECT ANSWER E

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 - CORRECT ANSWER D

Listen to special requests and seek solutions to oblige the customer within... A)utility policy B)5 working days C)tradition

D)secrecy - CORRECT ANSWER A

Treat customers as though there was another water utility across the street competing for your... A)job b)employees c)customers

d)revenue - CORRECT ANSWER NO ANSWER GIVEN

T/F: The chemical symbol for water is HO2. - CORRECT

ANSWER False (True if H2O)

T/F: Water occurs in 3 forms: solid ice, liquid water, water

vapor. - CORRECT ANSWER True

T/F: The hydrologic cycle is the natural exchange of water

between the earth and atmosphere. - CORRECT ANSWER

True T/F: Average water use depends on temperature, rainfall,

cost, supply, economic level. - CORRECT ANSWER True

T/F: Groundwater is located above the earth's surface and

tapped by wells. - CORRECT ANSWER False

T/F: Surface water comes from rivers, lakes, and reservoirs. -

CORRECT ANSWER True

T/F: Future water supplies will become more plentiful

according to the TNRCC/TCEQ. - CORRECT ANSWER False

T/F: Surface water or ground water prior to treatment is

called freshwater. - CORRECT ANSWER False

T/F: Potable water means water is free of disease-causing organisms, has high chlorine residual, and is safe for human

consumption. - CORRECT ANSWER True

T/F: The state must be notified about changes to public water systems involving water source, water quality, and

health hazards. - CORRECT ANSWER True

T/F: Before starting construction, the utility must submit

engineering plans to the AWWA. - CORRECT ANSWER False

T/F: Operators should keep records of water usage, system pressure, sample results, chlorine use, repairs, and

maintenance - CORRECT ANSWER True

T/F: Surface water systems must mail reports to the TNRCC (TCEQ) in Austin by the 5th of the following month. -

CORRECT ANSWER False (True if it was the 15th instead

of 5th) T/F: Groundwater systems serving 100 connections or more must compile monthly reports, but are not required to mail

them. - CORRECT ANSWER True

T/F: Water is always found pure in nature. - CORRECT

ANSWER False (True if never instead of always)

T/F: Physical characteristics of water are temperature,

turbidity, color, taste, odor, and pH. - CORRECT ANSWER

False T/F: Turbidity is the amount of suspended matter such as clay, silt, organic matter, and microorganisms in the water. -

CORRECT ANSWER True

T/F: Color in water can result from mineral or organic matter.

• CORRECT ANSWER True T/F: True color is dissolved in water (in solution) and can be

removed by filtration. - CORRECT ANSWER False

T/F: Red water caused by oxidized iron is in suspension (apparent color) and cannot be removed by filtering. -

CORRECT ANSWER False (it actually can be removed by

filtration) T/F: Taste and odor comes from algae, bacteria, organic

matter, gases, and chemicals. - CORRECT ANSWER True

T/F: Surface water supplies should be sampled for chemical analysis every year and ground water supplies should be

sampled 3 times a year. - CORRECT ANSWER False

T/F: Calcium and magnesium and other minerals cause

hardness in water. - CORRECT ANSWER True

T/F: The pH scale ranges from 1-14. - CORRECT ANSWER

False (True if it said 0-14)

T/F: pH of 7 is neutral. - CORRECT ANSWER True

T/F: Suspended solids can be removed by filtering and

dissolved solids cannot. - CORRECT ANSWER True

T/F: Common gases found in water include hydrogen sulfide,

carbon dioxide, methane, and sodium chloride. - CORRECT

ANSWER False

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 -

CORRECT ANSWER C

The hydrologic cycle is ... A)nature's way of recycling water B)equipment used to measure distances C)the way water filters through the eearth D)the process by which water runs into rivers and lakes -

CORRECT ANSWER A

The quality standard for all public water supplies is based on the use of water for... A)fire fighting B)drinking C)bathing

D)swimming - CORRECT ANSWER B

One of the most important purposes of a public water supply is... A)swimming B)landscape watering C)car washing

D)firefighting - CORRECT ANSWER D

Organic matter includes... A)sand B)plants, animals, and humans C)minerals

D)all listed - CORRECT ANSWER B

The most important treatment process is ___, which destroys disease-causing organisms. A)filtration B)disinfection C)softening

D)fluoridation - CORRECT ANSWER B

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 - CORRECT ANSWER C

Most ground water is relatively free of suspended matter, but ___ can be a major problem in surface water. A)turbidity B)gases C)sand

D)hot water - CORRECT ANSWER A

Color in a public water supply should be... A)at least 15 units B)under 3 units C)less than 15 units

D)red - CORRECT ANSWER C

Chemical characteristics include hardness, pH, solids, and... A)gases B)taste C)temperature

D)color - CORRECT ANSWER A

Water is considered hard when it exceeds ___ mg/l of calcium carbonate. A)0. B)

C)

D)1000 - CORRECT ANSWER C

A gallon of water weighs 8/34 pounds and 1 mg/l equal 1 ___. A)million grams B)thousand grams C)part per thousand

D)part per million - CORRECT ANSWER D

Hydrogen sulfide is heavier than air, colorless, flammable, toxic, and has a ___ odor. A)sweet B)rotten egg C)rotten fish

D)fragrant - CORRECT ANSWER B

Excessive nitrates in drinking water can cause ___ syndrome in infants. A)bad baby B)blue body C)bloody baby

D)blue baby - CORRECT ANSWER D

Excessive amounts of fluoride may cause ___ or staining of teeth. A)mottling B)molding C)cracking

D)yellowing - CORRECT ANSWER A

Trihalomethanes and haloacetic acids are byproducts of chlorination and may increase ___ risk.

A)mottled teeth B)red water C)typhoid

D)cancer - CORRECT ANSWER D

The action level for copper is 1.3 mg/l and for lead it is ___ mg/l. A) B)1. C)0.

D)0.15 - CORRECT ANSWER C

T/F: Aquifers are underground waterbearing formations

yielding useful quantities of water. - CORRECT ANSWER

True T/F: The quantity of water a formation yields depends on the

thickness and permeability of the formation. - CORRECT

ANSWER T

T/F: Problems caused by overpumping are falling water

levels and subsidence - CORRECT ANSWER True

T/F: Well casing and cementing protects the well from

collapse and surface contamination. - CORRECT ANSWER

True T/F: The purpose of the well screen is to keep out birds and

insects. - CORRECT ANSWER False

T/F: The most important feature of the well screen is the

length. - CORRECT ANSWER False (True if it was mesh)

T/F: The mesh size of the screen is determined by size of the aquifer material, the size of the gravel in the gravel pack,

and the type of well development. - CORRECT ANSWER

True T/F: In Texas, about 75% of all water is used for commercial,

industrial, or agricultural purposes. - CORRECT ANSWER

True Water covers approximately ________ of Earth's surface. -

CORRECT ANSWER 71%

Drought is an extended period when a region receives a

deficiency in its ________ water supply. - CORRECT ANSWER

atmospheric, ground, or surface T/F: Only about 1 gallon of tap water per person/day is used

for drinking and cooking - CORRECT ANSWER True

Excluding outside water use, the average household uses about _______ gallons of water per month for inside use -

CORRECT ANSWER 2,

T/F: Only 3% of all the fresh water on earth can be easily

accessed for use. - CORRECT ANSWER False (only 1%)

T/F: In 1978, the Texas Department of Health (TDH) assumed primacy over the Safe Drinking Water Act from the EPA. -

CORRECT ANSWER True

T/F: PWS officials should be pro-active in their approach to

terrorism. - CORRECT ANSWER True

_________ permits the owner of a well to pump as much water as desired, even if the water is drained from beneath the

land of others. - CORRECT ANSWER Rule of Capture

In Texas, agricultural water demand accounts for about ___%

of the total water used. - CORRECT ANSWER 57%

T/F: An example of a non-transient non-community PWS is a

rural school. - CORRECT ANSWER True

Monitoring average and maximum daily water ______ enables

us to plan ahead for growth. - CORRECT ANSWER Demand

T/F: The Safe Drinking Water Act sets standards for drinking water including physical, chemical, bacteriological, and

radiological characteristics. - CORRECT ANSWER True

"Potable" means water is safe to drink and has a

measurable chlorine ________. - CORRECT ANSWER

Residual The plant operator is responsible for a sufficient supply of

safe and ________ drinking water. - CORRECT ANSWER

Palatable T/F: The Texas State Board of Fire Insurance requires utilities that provide fire protection to have a minimum amount of water available based on 30 gals per person per

day. - CORRECT ANSWER False (130 gals per person per

day)

T/F: The primary state regulator of water utilities is the

TCEQ. - CORRECT ANSWER True

T/F: All community and non-transient non-community PWS, regardless of source of water, must be under the supervision

of a licensed water works operator. - CORRECT ANSWER

True Meter readers bring in operating revenue and profoundly

impact _____ relations. - CORRECT ANSWER Public

The federal regulator of drinking water is the _____. -

CORRECT ANSWER EPA

T/F: Duties of distribution operator include repairing leaks, making taps, flushing mains, and taking radiological

samples. - CORRECT ANSWER False (Repair leaks, Make

taps, Flush mains, Operate pumps, Take bacteriological samples) A service area has 1000 service connections. What can we estimate the population of this service area to be? -

CORRECT ANSWER 3,000 (multiply connections x 3)

T/F: The State must be notified after an existing facility is

changed or after construction of a new facility. - CORRECT

ANSWER False (must notify before)

T/F: A Class "D" license is valid for 2 years at ground and purchase water systems with 250 connections or less. -

CORRECT ANSWER False (3 years)

T/F: The physical characteristics of water are color, taste,

odor, temperature, and turbidity. - CORRECT ANSWER True

An alkaline or basic solution has a pH greater than ____. -

CORRECT ANSWER 7

T/F: The terms mg/L and ppm are not interchangeable. -

CORRECT ANSWER False (they are interchangeable)

Suspended solids in water cannot be filtered out. - CORRECT

ANSWER False (they can)

Solids, water hardness, pH and gases are ____

characteristics. - CORRECT ANSWER Chemical

T/F: There are 2 hydrogen atoms and 1 oxygen atom in each

water molecule. - CORRECT ANSWER True

T/F: The State recommends a water pH of less than 7 to be

maintained at all time. - CORRECT ANSWER False (The

state recommends a pH slightly greater than 7 and for the water to be non-corrosive.) T/F: Taste and odor can come from organisms such as vegetation, bacteria, and algae, and from certain chemicals

and metals. - CORRECT ANSWER True

T/F: The deeper the well, the warmer the water. - CORRECT

ANSWER True

T/F: The threshold odor number (TON) relates to the number

of dilutions needed for the water to be tasteless. - CORRECT

ANSWER False (It reflects the number of dilutions needed

for water sample to be odorless) One part per million or 1 mg/L means that for every ____ pounds of water there is one pound of material in it. -

CORRECT ANSWER 1 million

The State requires filtered water to be equal to or less than ____ turbidity units in at least 95% of the monthly samples. -

CORRECT ANSWER 0.

The State recommends a TON of ___ or less. - CORRECT

ANSWER 3

T/F: The State recommends 20 color units or less for a

quality water. - CORRECT ANSWER False (The state

recommends 15 units of color or less for drinking water.) T/F: Examples of inorganic matter found in water include

rock, sand, metals, and minerals. - CORRECT ANSWER

True T/F: The red color caused by iron is an example of suspended or apparent color and it can be removed by

filtration. - CORRECT ANSWER True

Excessive calcium and _____ are the primary cause of

hardness in water. - CORRECT ANSWER Magnesium

T/F: The State recommends a maximum total dissolved

solids content of 500 mg/L - CORRECT ANSWER False (The

state recommends that TDS not exceed 1000 mg/L)

There are 3 common gases found in water: methane, carbon

dioxide, and __________ ___________. - CORRECT ANSWER

hydrogen sulfide T/F: Turbidity must be limited because it shelters and nourishes bacteria and interferes with disinfection. -

CORRECT ANSWER True

T/F: Bleach or alcohol require less contact time than flaming

to disinfect a faucet. - CORRECT ANSWER False (flaming

requires less contact time) T/F: The "primary limits" refer to chemicals with maximum

contaminant levels that can be exceeded. - CORRECT

ANSWER False (refers to chemicals with maximum

contaminant levels (MCLs) that CANNOT be exceeded.) T/F: The term "total coliform" means fecal and non-fecal

coliform. - CORRECT ANSWER True

T/F: Pathogens are disease-causing microorganisms. -

CORRECT ANSWER True

If a routine sample is positive, flush the positive sample point, check the chlorine residual, then resample within 24

days of notification. - CORRECT ANSWER False (If a

routine sample is total coliform-positive, the PWS should flush the positive sample point, check the chlorine residual, then resample within 24 hrs of notification)

To prevent the formation of THMS in surface water, chlorine is combined with _____ forming chloramine, combined

chlorine residual. - CORRECT ANSWER Ammonia

If there is no chlorine ______ at a faucet, do not sample, flush

longer. - CORRECT ANSWER residual

T/F: All repeat samples must be collected on successive

days. - CORRECT ANSWER False (Collect all repeat sample

on the same day) In the event of distribution pressure below ___ psi, _______ outages, repeated bad samples or chlorine _____ below minimum, special precautions must be instituted. -

CORRECT ANSWER 20/water/residual

Get the sample to the lab within ___________ or it will be

rejected. - CORRECT ANSWER 30 hours (for BacT samples)

At 0.8 - 1.0 mg/L, fluoride reduces dental cavities, but in higher doeses (>2.0 mg/L) can cause _____ of teeth over time.

• CORRECT ANSWER mottling T/F: One by-product of chlorinated drinking water is

trihalomethane, a suspected carcinogen. - CORRECT

ANSWER True

Repeat samples must be taken at (a) the _______ ______ (b) within 5 connections upstream and (c) within 5 connections

downstream. - CORRECT ANSWER positive point

T/F: If you do not fill out the submission form completely,

you risk losing credit for the sample. - CORRECT ANSWER

True T/F: The presence of fecal coliform in a water sample indicates fecal contamination from a human or warm-

blooded animal. - CORRECT ANSWER True

The purpose of the sample site plan is to assure bacteriological samples are collected from ______ service connections which are representative of the distribution

system. - CORRECT ANSWER active

T/F: Keep the sample in ice or in a cooler prior to and during lab transport because heat stimulates bacterial growth. -

CORRECT ANSWER True

The action level for lead is _______ mg/L and for copper it is

_____ mg/L. - CORRECT ANSWER .015 / 1.3

T/F: Low doses of heavy metals such as lead and copper can cause damage to the central nervous system over time. -

CORRECT ANSWER True

A certain group of bacteria is used to indicate the possible

presence of a pathogen--- the ________ group. - CORRECT

ANSWER Coliform

Disinfection is the destruction of disease-causing

microorganisms called ______. - CORRECT ANSWER

Pathogens

At room temperature chlorine is a greenish-yellow gas that

is ___ times heavier than air. - CORRECT ANSWER 2.5

The State requires ________ to be kept in stock for

disinfecting new water lines. - CORRECT ANSWER Calcium

hypochlorite T/F: Hypochlorinators consist of a mixing tank and chemical

solution feed pump. - CORRECT ANSWER True

A full-face self-contained breathing apparatus or supplied air respirator must be readily accessible outside the fire station

when chlorine gas is used. - CORRECT ANSWER False (A

full-face self-contained breathing apparatus (SCBA) or supplied air respirator that meets OSHA standards shall be readily accessible outside the chlorinator room when chlorine gas is used.) T/F: All public water systems must have chlorination

facilities. - CORRECT ANSWER True

If chlorine enters the eyes, flush with running cool water for

at least ___ minutes and seek medical attention. - CORRECT

ANSWER 15 minutes

Liquid bleach used in PWS must be ______ approved. -

CORRECT ANSWER NSF

T/F: Primary components of a gas feed chlorinator include an injector, flowrate controller, rotameter, and mixing tank. -

CORRECT ANSWER False (injector, vacuum regulator,

flowrate controller, rotameter- not a mixing tank)

The maximum sustained gas withdrawal rate for pressure

transmission 150 lb cylinders is ____ lbs/day - CORRECT

ANSWER 40

T/F: Utility operators use chlorine in three commercial forms:

1. pure chlorine in the liquid or gas state
2. bleach solutions

3) granular/tablet compounds - CORRECT ANSWER True

T/F: If chlorine contacts the skin, flush with an emergency

shower or garden hose for at least an hour. - CORRECT

ANSWER False (15 minutes)

Hypochlorous acid is the disinfectant and the _____ residual.

• CORRECT ANSWER Free If a major chlorine leak occurs, call the supplier and ______. -

CORRECT ANSWER TCEQ

The rotameter indicates the feed rate in _____ per day -

CORRECT ANSWER pounds

T/F: Chlorine reacts with hydrocarbons producing heat or fire

• CORRECT ANSWER True Chlorinator rooms must be provided with facilities from determining the amount of disinfectant used _______ -

CORRECT ANSWER daily