{"id":132727,"date":"2024-07-29T09:26:58","date_gmt":"2024-07-29T09:26:58","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=132727"},"modified":"2024-07-29T09:27:04","modified_gmt":"2024-07-29T09:27:04","slug":"texas-wastewater-class-ab-c-and-class-d-bundle-newest-actual-exam-complete-questions-and-correct-detailed-answers-verified-answers-already-graded-a","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/07\/29\/texas-wastewater-class-ab-c-and-class-d-bundle-newest-actual-exam-complete-questions-and-correct-detailed-answers-verified-answers-already-graded-a\/","title":{"rendered":"TEXAS WASTEWATER CLASS A,B, C AND CLASS D BUNDLE NEWEST ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+"},"content":{"rendered":"\n

TEXAS WASTEWATER CLASS A,B, C AND CLASS D BUNDLE NEWEST ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+<\/p>\n\n\n\n

1 | P a g e
TEXAS WASTEWATER CLASS A NEWEST 2024-2025
ACTUAL EXAM COMPLETE 200 QESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Why is recirculation needed in a trickling filter? – ANSWER- a.
Keep the media wet b. Further reduce BOD c. Flood the filter to
control ponding and filter flies<\/p>\n\n\n\n

    \n
  1. What type of fire extinguisher would be used on an electrical
    control panel that has been de-energized? – ANSWER- f. a class
    a and d class c
    Disinfection with chlorine is the most effective at a pH of –
    ANSWER- 6.0<\/li>\n\n\n\n
  2. The biomass on a normal functioning RBC has what
    appearance? – ANSWER- Grey to brown and 0.05 to 0.1 inch
    thick
    The sludge from a primary clarifier should contain what percent
    solids? – ANSWER- b. 4% to 6%<\/li>\n<\/ol>\n\n\n\n

    2 | P a g e
    What is eutrophication in a pond system? – ANSWEREnrichment with nitrogen and phosphorous Causes algae blooms<\/p>\n\n\n\n

      \n
    1. A wastewater stabilization pond has 130,680 sq. ft. It has a
      three to one slope on the embankment and has an average depth
      of 5 ft. Approximately how many people will this pond provide
      wastewater treatment for? 130,680 sq ft = 3 acres x 35 lbs \/
      BOD\/ acre = 105 lbs BOD =618 0.17 lbs BOD\/ person 43,560
      sq ft l acre – ANSWER- d. 600
      A”Racetrack” is what type of Activate Sludge treatment? –
      ANSWER- Extended air
      Which form of activated sludge must have primary clarifiers? –
      ANSWER- Conventional
      What is the relationship between F\/M ratio and MCRT? –
      ANSWER- Indirect; if one goes up, the other goes down
      Which activated sludge process does not achieve complete
      nitrification? – ANSWER- Contact stabilization
      Which form of activated sludge does the better job of handling
      shock or toxic loads? – ANSWER- Complete mix<\/li>\n<\/ol>\n\n\n\n

      3 | P a g e
      Which of activated sludge has two aeration basins per single
      treatment unit? – ANSWER- Contact stabilization<\/p>\n\n\n\n

        \n
      1. A complete mix activated sludge plant has a fast settling
        sludge and high amounts of pin floc leaving the clarifier. One
        method of correcting the problem is to – ANSWER- Increase
        F\/M ratio by wasting more
        problem is Testing of mixed liquor indicates the MLSS is 2500
        mg\/L and the settling test shows that a 1000 ml sample settles to
        400 mls after 30 minutes. What is the SVI? 400 x 1000 2500
        160 – ANSWER- 160
        In the problem above, what the sludge quality? – ANSWERBulking
        Which activated sludge process has 18 to 20 + hours detention
        time in the aeration basin? – ANSWER- Extended air
        What is the minimum clearance from the sidewall of a pipe to
        the trench wall in an excavation? – ANSWER- 4 inches<\/li>\n<\/ol>\n\n\n\n

        4 | P a g e
        What is the definition of pH? – ANSWER- The logarithm of the
        reciprocal of the hydrogen ion concentration The negative
        logarithm of the hydrogen ion concentration
        How often should pH meters be calibrated? – ANSWER- Daily
        trench is 4,100 feet long, four 4 wide and 6 feet deep. There is a
        12-inch diameter pipe in the bottom of the trench. How many
        cubic yards of material were removed from the trench?
        4x6x4,100 3,644 27 – ANSWER- 3,644
        In the problem above, how many cubic yards of material will be
        required to fill the trench? 3.14×0.5 x0.5 x 4,100 =119cu yds 27
        3,644 -119 = 3,525 – ANSWER- 3,525
        What is the standard chlorine residual and contact time on Texas
        discharge permits? – ANSWER- e. None of the above
        organization increases,
        As the complexity of an organization increases, what
        management function becomes most important? – ANSWERPlanning
        get pdf at https:\/\/learnexams.com\/search\/study?query=<\/a><\/p>\n\n\n\n

        1 | P a g e
        TEXAS WASTEWATER CLASS B NEWEST 2024-2025
        ACTUAL EXAM COMPLETE 200 QESTIONS AND
        CORRECT DETAILED ANSWERS (VERIFIED
        ANSWERS) |ALREADY GRADED A+
        Organic loading of a stabilization pond is about _ pounds of BOD\/acre\/day with a detention time of at least<\/em><\/strong> days. –
        ANSWER- 35 BOD\/ 30 Days
        Anaerobic digesters are covered to keep out , and to trap useful methane which can be used to keep the digester warm. – ANSWER- free oxygen Unstable anareobic sludge contains streaks of _<\/strong><\/em><\/strong> or
        . – ANSWER- gray\/green
        Aerobic digestion is an process whereby the aerobic bacteria consume themselves – ANSWER- Endogenous Approved disposal methods for digested, dewatered, sludge’s are landfill,<\/em> and __<\/strong>. – ANSWER- Incineration & Land
        Application<\/p>\n\n\n\n

        2 | P a g e
        Landfill applied sludge must have a solids content of at least
        ___percent – ANSWER- 20 Calcium Hypochlorite (HTH) is a strong _<\/em><\/strong><\/em><\/strong> and reacts
        violently with . – ANSWER- Oxidizer\/Oil &
        Hydrocarbons
        When added to water chlorine forms __<\/em><\/strong>&_______acid –
        ANSWER- Hydrochlorous and Hydrochloric
        When ammonia is present in wastewater and reacts with
        chlorine_________are formed – ANSWER- Chloramines
        Effluent dosage of chlorine in the contact chamber must produce
        a total combined residual of – ANSWER- 1.0 mg\/L after 20
        minutes
        Besides disinfection, chlorine has other uses at the wastewater
        treatment plant such as – ANSWER- Reduces BOD, Odor,
        Algae growth, Helps with Grease
        TCEQ allows the reuse of wastewater, some of these include –
        ANSWER- Irrigation, aquifer recharge, cooling towers and fire
        protection<\/p>\n\n\n\n

        3 | P a g e
        All reclaimed water piping must be _______in color –
        ANSWER- purple
        Before entering a manhole the operator should test for
        ________and oxygen levels and ________the manhole before
        entering. – ANSWER- all hazardous gasses and ventilate
        When a municipal wastewater effluent has a high nitrate level
        and low ammonia level this most likely means – ANSWER- the
        effluent has received a high degree of aerobic treatment
        Total solids in wastewater are the sum of – ANSWER- Settleable
        and volatile solids
        This treatment device is commonly used to separate and remove
        large solids from raw wastewater – ANSWER- A Mechanically
        raked bar screen
        ___________would have an adverse effect on the proper settling
        of solids in a clarifier. – ANSWER- A short circuiting flow
        pattern<\/p>\n\n\n\n

        4 | P a g e
        This test would give the best information on how efficiently a
        trickling filter was operating – ANSWER- Percent BOD
        Removal
        This trickling filter problem could be reduced by increasing the
        recirculation ratio – ANSWER- Filter files
        What gases are produced by the controlled anaerobic digestion
        of wastewater sludge’s – ANSWER- Methane & Carbon Dioxide
        These diseases are caused by pathogenic organisms that may be
        present in raw wastewater – ANSWER- Hepatitis, typhoid,
        paratyphoid, dysentery, cholera, gastroenteritis, polio,
        hookworm and giardiasis
        During heavy rain it is possible that manholes and lift stations
        may overflow, discharge waste materials into roadways or
        ditches. This type of discharge (SSO) would be – ANSWERconsidered an unavoidable discharge, a violation of the Texas
        Water Code, a bypass that must be reported within 24 hours and
        considered a health hazard
        An effective way for the collection system worker to prevent
        infection by waterborn pathogenic organism is to – ANSWER<\/p>\n\n\n\n

        get pdf at https:\/\/learnexams.com\/search\/study?query=<\/a><\/p>\n\n\n\n

        1 | P a g e
        TEXAS WASTEWATER CLASS C NEWEST 2024-2025
        ACTUAL EXAM COMPLETE 300 QESTIONS AND
        CORRECT DETAILED ANSWERS (VERIFIED
        ANSWERS) |ALREADY GRADED A+
        What conditions should an operator observe in a well controlled
        activated sludge process? – ANSWER- surface
        turbulence\/uniform roll pattern; foam\/small amount of lightcolored, crisp foam; odors\/mild, earthy; color\/medium-brown
        What conditions should an operator observe in a well controlled
        clarifier? – ANSWER- very little surface scum; a sludge blanket
        covering 1\/4 of the bottom; uniform weir flow (all the way
        around); almost no rising solids and overflow should be clear
        and free of floc
        What type solids cannot go onto a trickling filter? – ANSWERlarge suspended solids
        Important factors to a well operating trickling filter\u2026 –
        ANSWER- continuous food supply, aerobic conditions and a
        moist zoogleal mass
        Basic elements of a trickling filter are\u2026 – ANSWER- floor and
        walls; distributor arms; underdrains and media<\/p>\n\n\n\n

        2 | P a g e
        What must be durable and provide enough surface for bacterial
        growth with a trickling filter? – ANSWER- filter media
        The zoogleal mass on a filter is composed mainly of what? –
        ANSWER- bacteria and algae
        The materials resulting from the stabilization of waste material
        as it passes through a trickling filter are\u2026 – ANSWER- water,
        nitrates and carbon dioxide
        What are zoogleal solids called that are washed off a trickling
        filter? – ANSWER- sloughings (which settle in the final
        clarifier)
        Units commonly used to measure the rate of hydraulic loading
        are\u2026 – ANSWER- lb\/ft\/day
        Units commonly used to measure the rate of organic loading
        include\u2026 – ANSWER- lb BOD\/acre ft\/day
        and
        lb BOD\/1000 ft3\/day<\/p>\n\n\n\n

        3 | P a g e
        Trickling filters may be classified as\u2026. – ANSWER- high-rate;
        roughing; standard-rate
        The underdrain system of a standard rate trickling filter should
        be\u2026 – ANSWER- designed to flow half-full
        The recirculation ratio of a trickling filter has an effect on\u2026 –
        ANSWER- organic matter removal; odors; filter flies
        What test best indicates the efficiency of a trickling filter? –
        ANSWER- percent BOD removal
        Filter operational problems include\u2026 – ANSWER- ponding;
        filter flies (psychoda); odors
        Filter ponding may be caused by\u2026 – ANSWER- poor quality
        rock; excessive organic loading; inefficient primary clarifier
        Methods of controlling filter flies include\u2026 – ANSWER- flood
        the filter
        To control odors at a trickling filter plant, the operator can\u2026 –
        ANSWER- increase recirculation, practice good housekeeping
        and chlorinate the influent<\/p>\n\n\n\n

        4 | P a g e
        Clogged orifices on influent distributor arms may be corrected
        by\u2026 – ANSWER- cleaning and flushing
        Rotating biological contactors are usually covered to\u2026 –
        ANSWER- prevent algae growth on the media
        The rotating discs should be\u2026 – ANSWER- partially submerged
        in the wastewater
        Rotating biological contactors may be\u2026 – ANSWER- driven by
        electric motors or trapped air
        The biological growth on the disc of a rotating biological
        contactor should\u2026 – ANSWER- contain approximately 50,000
        mg\/L solids; be 0.05-0.1 inch thick after one or two weeks; and
        be gray to brown in color
        The RBC (rotating biological contactor) unit must be preceded
        by a\u2026 – ANSWER- primary clarifier or fine screen
        A condition(s) that adversely affect(s) the operation of a rotating
        biological contactor is\u2026 – ANSWER- toxic materials from
        industrial wastes; hydrogen sulfide; high or low pH
        get pdf at         https:\/\/learnexams.com\/search\/study?query=<\/a><\/p>\n\n\n\n

        1 | P a g e
        TEXAS WASTEWATER CLASS D NEWEST 2024-2025
        ACTUAL EXAM COMPLETE 300 QESTIONS AND
        CORRECT DETAILED ANSWERS (VERIFIED
        ANSWERS) |ALREADY GRADED A+
        One of the most important purposes of a public water supply is
        _<\/em><\/strong>.
        a. swimming
        b. landscape watering
        c. car washing
        d. firefighting – ANSWER- d. firefighting
        Organic matter includes .
        a. sand
        b. plants, animals and humans
        c. minerals
        d. all listed – ANSWER- b. plants, animals and humans
        The most important treatment process is <\/strong>, which
        destroys disease-causing organisms.
        a. filtration
        b. disinfection<\/p>\n\n\n\n

        2 | P a g e
        c. softening
        d. fluoridation – ANSWER- b. disinfection
        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 – ANSWER- c. dates of dead-end flushing
        Most groundwater is relatively free of suspended matter, but
        <\/strong> can be a major problem in surface water. – ANSWERturbidity
        Color in a public water supply should be less than _ units. – ANSWER- less than 15 units Chemical characteristics of water include hardness, pH, solids, and <\/em><\/strong>. – ANSWER- gases
        Water is considered hard when it exceeds __<\/em><\/strong> mg\/L of
        calcium carbonate. – ANSWER- 100 (may vary depending on
        who you talk to)<\/p>\n\n\n\n

        3 | P a g e
        A gallon of water weighs _ pounds and 1 mg\/L equals one <\/em><\/strong>. – ANSWER- water weights 8.34 pounds
        1 mg\/L equals one part per million
        Hydrogen sulfide is heavier than air, colorless, flammable, toxic,
        and has a odor. – ANSWER- rotten egg (unless you
        get a dose that’s so heavy it numbs your sense of smell)
        Excessive nitrates in drinking water can cause<\/strong>
        syndrome in infants. – ANSWER- blue baby syndrome
        Excessive amounts of fluoride may cause or staining
        of teeth. – ANSWER- mottling
        Trihalomethanes and haloacetic acids are byproducts of
        chlorination and may increase<\/strong> risk. – ANSWERcancer
        The action level for copper is _ mg\/L and for lead it is _<\/em><\/strong> mg\/L. – ANSWER- copper is 1.3 mg\/L
        lead is 0.015 mg\/L<\/p>\n\n\n\n

        4 | P a g e
        _ are underground, water-bearing formations yielding useful quantities of water. – ANSWER- Aquifers The quantity of water a formation yields depends on the thickness and of the formation. – ANSWER- permeability
        Problems caused by are declining water levels and
        subsidence. – ANSWER- overpumping
        Well and cementing protect the well from collapse and
        surface contamination. – ANSWER- Well casing
        The purpose of the well screen is to keep out birds and insects.
        (true\/false) – ANSWER- false (the well screen keeps out sand;
        the well vent screen keeps out birds and insects)
        The most important feature of the well screen is the length.
        (true\/false) – ANSWER- false (the mesh size is the most
        important feature)
        The __<\/em><\/strong> 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. – ANSWER- mesh size
        get pdf at         https:\/\/learnexams.com\/search\/study?query=<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

        TEXAS WASTEWATER CLASS A,B, C AND CLASS D BUNDLE NEWEST ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+ 1 | P a g eTEXAS WASTEWATER CLASS A NEWEST 2024-2025ACTUAL EXAM COMPLETE 200 QESTIONS ANDCORRECT DETAILED ANSWERS (VERIFIEDANSWERS) |ALREADY GRADED A+Why is recirculation needed in a trickling filter? – ANSWER- a.Keep […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-132727","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/132727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=132727"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/132727\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=132727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=132727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=132727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}