Attempt #6 Ron Eversole's Quiz History_ Practice T1-T2 Certification Exam.pdf

12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Practice T1-T2 Certification Exam Results for Ron Eversole Score for this attempt: 250.6 out of 300 Submitted Nov 19 at 12:07am This attempt took 102 minutes. Question 1 2.6 / 2.6 pts What change in state is eviden...

12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Practice T1-T2 Certification Exam Results for Ron Eversole Score for this attempt: 250.6 out of 300 Submitted Nov 19 at 12:07am This attempt took 102 minutes. Question 1 2.6 / 2.6 pts What change in state is evident in the process of Freezing? Solid to liquid Solid to gas Liquid to gas Correct! Liquid to solid Gas to solid Question 2 2.6 / 2.6 pts What is the normal boiling point of water? 32 oF 212 oC https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 1/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam 100 oF 32 oC Correct! 212 oF Question 3 2.6 / 2.6 pts The movement of water "uphill" in the Hydrologic Cycle requires Deposition Infiltration Condensation Correct! Energy Precipitation Question 4 2.6 / 2.6 pts An operating well will drain the water from a volume of soil around the well during pumping. This volume is referred to as the https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 2/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Water table Radius of influence Subsidence Drawdown Correct! Cone of depression Question 5 2.6 / 2.6 pts The height to which water will rise in wells located in an artesian aquifer is called the Drawdown Pumping water level Recharge Correct! Piezometric surface Water table Question 6 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 2.6 / 2.6 pts 3/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Raw (untreated) surface water taste and odor problems are most likely the result of Prechlorination Copper sulfate additon Thermal destratification Correct! Blue-green algae growth Thermal stratification Question 7 2.6 / 2.6 pts The middle layer of a stratified lake is called the Hypolimnion Epilimnion Correct! Thermocline Transition zone Hyperlimnion https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 4/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 8 2.6 / 2.6 pts The most serious water quality issue associated with surface water supplies is Hydrogen sulfide Green algae Correct! Pathogenic microorganisms Copper sulfate contamination Blue-green algae Question 9 2.6 / 2.6 pts The main source of surface water in the Hydrologic Cycle is Evapotranspiration Correct! Runoff Percolation Infiltration Recharge https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 5/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 10 2.6 / 2.6 pts Chemicals that are employed for preoxidation at a surface water treatment plant include Correct! All of the above Ozone Chlorine Air Potassium permanganate Question 11 2.6 / 2.6 pts Proper personal protection equipment in a chlorine leak situation must include Rubber gloves Class B fire extinguisher Leather apron Goggles https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 6/56 12/18/21, 3:14 PM Correct! Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Self-contained breathing apparatus Question 12 0 / 2.6 pts At low pH conditions, the dominant form of free chlorine will be Trichloramine Hypochlorite ion rrect Answer Hypochlorous acid u Answered Hydrochloric acid Dichloramine Question 13 0 / 2.6 pts The device that controls the rate of chlorine gas application is called the Eductor Evaporator u Answered Amperometric sensor https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 7/56 12/18/21, 3:14 PM rrect Answer Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Chlorinator Fusible plug Question 14 2.6 / 2.6 pts Continuous chlorine residual measurement can be produced from a device that is Colorimetric Gravimetric Metric Volumetric Correct! Amperometric Question 15 2.6 / 2.6 pts The reason that most of a gaseous chlorine system is operated under vacuum is to improve None of the above https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 8/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Water quality Sublimation Correct! Safety Evapotranspiration Question 16 2.6 / 2.6 pts As a drinking water disinfectant, free chlorine is most effective when the Ammonia is added Water is unfiltered prior to chlorination Disinfection by-products are added Water pH is higher Correct! Water pH is lower Question 17 2.6 / 2.6 pts Plumbing connections in chlorine gas systems should always be made with a https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 9/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Mechanical seal External source of seal water Correct! New lead gasket Socket wrench Hydrant wrench Question 18 2.6 / 2.6 pts Of the following, which is the most effective disinfectant? Correct! Hypochlorous acid All of the above have similar disinfecting capabilities Hypochlorite ion None of the above are effective disinfectants Chloramines Question 19 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 2.6 / 2.6 pts 10/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam The device that protects a 100 pound chlorine cylinder from catastrophic explosions is the Chlorinator Mechanical seal Eductor Correct! Fusible plug Injector Question 20 2.6 / 2.6 pts The optimum coagulant dosage is estimated in the laboratory by the Tracer test Correct! Jar test DPD test Marble test Acid test https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 11/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 21 2.6 / 2.6 pts Charge neutralization coagulation is accomplished by the surface action of Caustic soda Ferric hydroxide None of the above Correct! Charged intermediate species of the primary coagulant Tapered flocculation Question 22 2.6 / 2.6 pts Water treatment utilizing the processes of coagulation/rapid mixing, flocculation, and filtration is referred to as Diatomaceous earth filtration processes Conventional treatment In-line filtration Correct! Direct filtration https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 12/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Tapered flocculation Question 23 0 / 2.6 pts The treatment processes used to control corrosion and deposition of drinking water are known as Tapered flocculation u Answered Antioxidation Oxidation rrect Answer Stabilization Enhanced coagulation Question 24 2.6 / 2.6 pts The most common means of assessing the stability of water is the Amperometric method Correct! Langlier Index https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 13/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Chelation Index Jar test Zeta potential Question 25 2.6 / 2.6 pts A disinfection by-product most commonly associated with ozone treatment is Chlorite Chlorate Correct! Bromate Carbon dioxide Combined chlorine Question 26 0 / 2.6 pts When used alone, sodium hypochlorite and calcium hypochlorite will produce which of the following disinfectants in drinking water? https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 14/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Chloramines Ozone u Answered Chlorine dioxide Hydrogen peroxide rrect Answer Free chlorine Question 27 2.6 / 2.6 pts The disinfectant chlorine dioxide is formed by the combination of chlorine with Ammonia Oxide Ozone Correct! Sodium chlorite Dioxide Question 28 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 2.6 / 2.6 pts 15/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam When disinfectants react with natural organic matter in the water, it is possible to form Arsenic Radionuclides Combined chlorine Correct! Disinfection by-products MTBE Question 29 0 / 2.6 pts Which of the following would be considered Natural organic matter? Live microorganisms Algae Dead pathogens u Answered Debris from plants and animals from the watershed rrect Answer All of the above https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 16/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 30 0 / 2.6 pts A chemical that is frequently applied just prior to filtration is rrect Answer Anionic or nonionic polymer Caustic soda Ferric chloride Copper sulfate u Answered Alum Question 31 0 / 2.6 pts Typical filtration rates for dual media filters in conventional treatment plants are 0.2-0.6 gallons per minute per square foot u Answered 10-20 gallons per minute per square foot rrect Answer 2-6 gallons per minute per square foot 200-600 gallons per minute per square foot 20-60 gallons per minute per square foot https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 17/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 32 0 / 2.6 pts Rapid sand filtration is most commonly associated with Upflow pressure filters Groundwater treatment rrect Answer Direct filtration and conventional treatment Diatomaceous earth filteration u Answered Slow sand processes Question 33 2.6 / 2.6 pts Particle dislodgement in the Filtration process is generally undesirable, except during Terminal head loss Surface Loading Tapered mixing Correct! Backwashing https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 18/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam The initial turbidity spike Question 34 2.6 / 2.6 pts A polymer added to the effluent of the sedimentation process is called a Coagulent aid Correct! Filter aid Sludge dewatering aid Particle scavenger Diatomaceous earth Question 35 2.6 / 2.6 pts As a "typical" filter run proceeds, head loss in the filter media will Increase slowly and the decrease abruptly Correct! Gradually increase https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 19/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Remain constant Decrease slowly and then increase abruptly Gradually decrease Question 36 2.6 / 2.6 pts The injection of compressed air into the filter media just prior to and/or during the backwashing process is a common form of Regeneration Inactivation Correct! Supplemental scour Oxidation Disinfection Question 37 2.6 / 2.6 pts When flocculation mixing intensity drops from stage to stage, it is termed https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 20/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam G-factor syndrome Schmutzdecke Correct! Tapered flocculation Process diminution Process failure Question 38 0 / 2.6 pts Which of the following elements is most likely to exist in water as an anion? Carbon Calcium rrect Answer Fluorine u Answered Iron Sodium Question 39 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 2.6 / 2.6 pts 21/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam A residential meter measures hundreds of cubic feet of water use. If this meter reads 0044567 on April 1, and 0044600 on May 1, how many cubic feet of water were delivered to this residence? 110 Correct! 3300 44,567 33 44,600 Question 40 2.6 / 2.6 pts The term "Springline" applies to The outflow from an artesian aquifer. The water table in an unconfined aquifer. The flow rate in a natural water course during Spring months. Correct! The midline of a pipeline. The inflow to an artesian aquifer. https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 22/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 41 2.6 / 2.6 pts The agency of the United States federal government responsible for establishing and enforcing drinking water regulations is the Food and Drug Administration Department of the Interior Correct! Environmental Protection Agency Federal Emergency Management Agency (FEMA) Question 42 2.6 / 2.6 pts When we consider particles of matter that are atomic or molecular in size, the dominant natural force of nature impacting these particles is Gravity Pressure Correct! Magnetism Viscosity https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 23/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 43 2.6 / 2.6 pts Haloacetic acids are an example of a Correct! Disinfection by-product Synthetic organic chemical Microbiological contaminant Natural organic chemical Question 44 2.6 / 2.6 pts Which of the following treatment processes can produce pure water? Diatomaceous earth filtration Activated carbon filtration Correct! Distillation Enhanced coagulation https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 24/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 45 2.6 / 2.6 pts In which decade was the original Safe Drinking Water Act adopted as federal law in the United States? 1940's 1990's Correct! 1970's 1920's Question 46 2.6 / 2.6 pts What is the maximum time requirement for public notification of a Tier 1 Violation? No such time limit is specified 30 days 7 days Correct! 24 hours https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 25/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 47 2.6 / 2.6 pts A drinking water system that serves 22 people through 12 service connections on a year-round basis would be classified as a Non-transient non-community water system Transient non-community water system Community water system Correct! Non-public water system Question 48 2.6 / 2.6 pts The packing gland serves as the barrier between the wet side and the dry side of the pump. Which of the following can also serve this function? Volute Vertical turbine Bearings Casing Correct! Mechanical seal https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 26/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 49 0 / 2.6 pts The difference between the total static head and the total dynamic head is Cavitation Velocity u Answered Hydraulic grade line Suction lift rrect Answer Friction Question 50 0 / 2.6 pts The vertical distance that water is being lifted by a pump is called the Evapotranspiration rrect Answer Total static head u Answered Suction lift https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 27/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Friction Total dynamic head Question 51 2.6 / 2.6 pts Who must you notify at least 48 hours prior to commencing a planned excavation or trenching operation? Correct! Underground service alert Underdog Department of Public Health Cal-EPA Cal-OSHA Question 52 0 / 2.6 pts Who must sign off on the Permit before a permit confined space operation may commence? Each employee in the operation https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 28/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam The Safety Officer rrect Answer Competent person u Answered OSHA The water agency's General Manager or President Question 53 0 / 2.6 pts For a confined space to be elevated to "Permit" status, which of the following must apply to that space? Potential for a hazardous atmosphere u Answered All of the above must apply Entrapment potential rrect Answer Any one of the above Engulfment potential Question 54 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 2.6 / 2.6 pts 29/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam A fire is burning in a storage area holding sacrificial anodes made of magnesium. What classification of fire extinguisher should be used to suppress this fire? A C B E Correct! D Question 55 2.6 / 2.6 pts To prevent the artificial introduction of odor to water samples, the physical analysis must be collected in Containers that are completely filled and have no air bubbles Correct! Glass containers Secured sampling locations A vacuum Plastic containers https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 30/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 56 2.6 / 2.6 pts The analytical method used to measure turbidity is called Correct! Nephelometry Colorimetry Fluorometry Spectrophotometry Amperometry Question 57 2.6 / 2.6 pts A condition called dental fluorosis can be caused by elevated levels of Platinum-cobalt Disinfection by-products Haloacetic acids Correct! Fluoride https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 31/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Arsenic Question 58 2.6 / 2.6 pts The main purpose of secondary drinking water standards is to address Contamination due to low system pressures and backflow events Microbiological contaminants (pathogens) Toxic substances Correct! Aesthetic properties of the water Contamination by contact with pipes, valves, and other materials that transport the water. Question 59 2.6 / 2.6 pts The most likely cause of rust-colored laundry stains is an elevated level of https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 32/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Platinum-cobalt Correct! Iron Aluminum Zinc Sodium thiosulfate Question 60 2.6 / 2.6 pts In water chemistry, pH is a measurement of the concentration of Partial Hydrates Disinfection by-products Correct! Hydrogen ions Pathogens Turbidity Question 61 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 2.6 / 2.6 pts 33/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam What processes must precede Sedimentation if this process is to be effective at removing colloidal particles? Disinfection and Stabilization Stabilization and Destabilization Filtration and Disinfection Correct! Coagulation and Flocculation Flocculation and Filtration Question 62 2.6 / 2.6 pts As water flows from the center of a circular clarifier to the peripheral exit weir, which of the following will occur? Vertical velocity will increase Mixing intensity will decrease Correct! Horizontal velocity will decrease Vertical velocity will decrease Mixing intensity will increase https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 34/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 63 2.6 / 2.6 pts Potable water may be defined as Water high in organic content Correct! Any water that, according to recognized standards, is safe for human consumption Any water that occasionally may be polluted from another source Water that has been transported into the service area Water that has been transported outside the service area Question 64 2.6 / 2.6 pts A form of aquatic life that often produces undesirable odors in water supplies is Migratory fish Crustaceans Aquatic mammals https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 35/56 12/18/21, 3:14 PM Correct! Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Algae Delta smelt Question 65 2.6 / 2.6 pts Which of the following is most susceptible to waterborne disease transmittal? Shallow wells Deep wells Confined aquifers Artesian aquifers Correct! Streams Question 66 2.6 / 2.6 pts The most significant water quality issue worldwide is Disinfection by-products Chloramination https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 36/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Chromium VI Correct! 1. Waterborne disease Fluoridation Question 67 2.6 / 2.6 pts What is the SWTR required level of reduction of viruses? Correct! 99.99 % 90 % 100 % 5% Question 68 2.6 / 2.6 pts What is the main water quality concern associated with surface water? Taste and odor compounds Radionuclides https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 37/56 12/18/21, 3:14 PM Correct! Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Pathogenic microorganisms Nitrate 0 / 2.6 pts Question 69 What is the most commonly applied means for determining if a surface water treatment plant is in compliance with the "properly operated" requirements of the SWTR? u Answered Full removal of Cryptosporidium is measured. rrect Answer Consistently low combined filter effluent turbidity Compliance with coliform standards Full inactivation of viruses is measured. Question 70 2.6 / 2.6 pts Which of the following microorganisms would be most effectively removed from drinking water by filtration? MRSA Hepatitis virus https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 38/56 12/18/21, 3:14 PM Correct! Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Giardia lamblia Escherichia coli Question 71 2.6 / 2.6 pts Which of the following unit processes is a required portion of "Conventional Treatment," as defined by the SWTR? Chlorination Corrosion control Correct! Flocculation Deionization Question 72 2.6 / 2.6 pts Which of the following processes is NOT approved for pathogen removal in a surface water treatment plant? Correct! Ion exchange Slow sand filtration https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 39/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Conventional treatment Diatomaceous earth filtration Question 73 2.6 / 2.6 pts For drinking water distribution systems with over 40 routine coliform samples per month, the maximum amount of positive total coliform results allowed is 5 2% Variable, depending upon the size of the system. Correct! 5% 2 Question 74 2.6 / 2.6 pts A bacteriological test that measures only the presence or absence of coliforms is Multiple tube fermentation https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 40/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Most probable number Correct! ColiLert (MMO-MUG) Completed test Membrane filtration Question 75 2.6 / 2.6 pts Brilliant green bile is an essential ingredient in which of the following? Heterotrophic plate count ColiLert Completed test Correct! Confirmed test Membrane filtration Question 76 2.6 / 2.6 pts The multiple tube fermentation analysis consists of https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 41/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Positive, negative, and neutral tests Presence or absence testing Preliminary, confirmed, and completed tests Correct! Presumptive, confirmed, and completed tests Preliminary, presumptive, and confirmed tests Question 77 2.6 / 2.6 pts How long will it take to detect the presence of E. coli using the membrane filtration method? 4 - 8 hours 48 hours The duration of the membrane filtration test is variable. 96 hours Correct! 24 hours Question 78 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 2.6 / 2.6 pts 42/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam The standard indicator of potential pathogen contamination of a public drinking water system is TDS Correct! Coliform presence/absence pH Giardia Heterotrophic plate count Question 79 2.6 / 2.6 pts What steps must be taken when a single routine sample tests positive for total coliform? Re-test a new sample taken from the original sample point. Immediately notify the Department of Public Health Flush the system around the original sample point to reestablish disinfectant levels. https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 43/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam No action is required if the original sample is only positive for total coliforms. Correct! Re-test a new sample taken from the original sample point, plus at two additional points upstream and downstream. Question 80 2.6 / 2.6 pts Which of the following devices is routinely used to reduce system pressures? Correct! Globe valve Corporation stop Gate valve Ball valve Auxiliary valve Question 81 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 0 / 2.6 pts 44/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam A more compact and faster alternative to Sludge Drying Beds for the separation of water from solids during sludge processing is None of the above Filter presses u Answered Belt presses Centrifuges rrect Answer All of the above Question 82 2.6 / 2.6 pts The field testing method for residual chlorine in a drinking water sample is TCR NDMA Correct! DPD SWTR https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 45/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 83 2.6 / 2.6 pts How long must a sample tap be idle prior to collecting a sample for Lead and Copper Rule compliance? 5 minutes Correct! 6 hours 1 hour There is no minimum idle time requirement Question 84 2.6 / 2.6 pts What is the maximum time that may elapse between sample collection and the beginning of the total coliform analysis? No time is allowed As long as needed by the certified laboratory Correct! 24 hours 6 hours https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 46/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 85 2.6 / 2.6 pts According to the Total Coliform Rule, which of the following is used to establish the minimum number of samples that must be collected and analyzed during a reporting period? Number of pump stations Number of sources Number of pressure zones Correct! Population served Question 86 0 / 5.2 pts What is the cross-sectional area (in square inches) of a 600foot long pipeline that holds 14,000 gallons of water? u Answered 23.3 3.12 3,360 rrect Answer 449 60.0 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 47/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 87 5.2 / 5.2 pts An 80-foot diameter reservoir currently holds 825,000 gallons of water. What is the depth of water in this reservoir, measured in feet? 3.03 169 28.8 Correct! 22.6 80 Question 88 5.2 / 5.2 pts How many minutes are required for 175 gpm to pass the entire 1500-foot length of a 12-inch diameter pipeline? 125 minutes 8.57 minutes 6.73 minutes https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 48/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam 64 minutes Correct! 50.3 minutes Question 89 5.2 / 5.2 pts A treatment plant is processing 8.5 MGD at a constant rate for 48 hours. How many gallons of water did this plant process during this time? 408 gallons 408,000,000 gallons Correct! 17,000,000 gallons 8,500,000 gallons 2,270,000 gallons Question 90 5.2 / 5.2 pts A 75-foot diameter water storage tank begins this operation with a water depth of 24.5 feet. The tank is drained at a rate of 2.76 cfs for 4 hours. What is the depth (in feet) of water in this tank at the end of this operation? https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 49/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam 9.00 feet Correct! 15.5 feet 13.0 feet 21.2 feet 23.3 feet Question 91 5.2 / 5.2 pts The water level in a storage tank that is 70 feet wide and 140 feet long increases from 7.8 feet to 10.7 feet in 55 minutes. What is the flow rate entering this tank, expressed in cubic feet per second? Correct! 8.61 cfs 517 cfs 23.2 cfs 0.144 cfs 31.8 cfs Question 92 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 5.2 / 5.2 pts 50/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam A chlorinator is dispensing 30 pounds of chlorine per day to a well producing 1.2 MGD. What is the current chlorine dosage, expressed in milligrams per liter? 1.2 25 3.6 36 Correct! 3.0 Question 93 0 / 5.2 pts A 6.0 MGD plant must feed 15 ppm of ferric chloride to achieve its treatment objectives. The plant has a single feed pump that can deliver 500 pounds per day of this chemical. What is the maximum flow rate at which this plant can operate? 2.0 MGD 5.0 MGD rrect Answer 4.0 MGD u Answered 6.0 MGD https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 51/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam 3.0 MGD Question 94 5.2 / 5.2 pts A well is producing 2 million gallons per day of flow. The desired chlorine dosage rate is 4 mg/L. How many pounds per day of chlorine gas must be applied to this well? 16.7 400 Correct! 67 8.34 40 Question 95 5.2 / 5.2 pts A field calibration test of a polymer feed system shows that it is delivering 2.00 pounds of polymer per hour into the 6.0 MGD treatment plant. What is the current polymer dosage rate at this plant, expressed in pounds per day? 3.0 lb/day https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 52/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam 2.0 lb/day 24 lb/day Correct! 48 lb/day 12 lb/day Question 96 5.2 / 5.2 pts A well produces 2000 gpm, and must receive a chlorine dosage of 2.5 ppm to meet water quality objectives. How many pounds of chlorine gas must be applied to the water of this well each day? 800 7.2 Correct! 60 87.2 96 Question 97 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 5.2 / 5.2 pts 53/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam A 10.0 MGD treatment plant is currently processing 7.0 cfs using an alum dosage of 2.75 ppm. How many pounds per hour of alum should be applied? 161 pounds per hour 6.69 pounds per hour Correct! 4.32 pounds per hour 229 pounds per hour 104 pounds per hour Question 98 5.2 / 5.2 pts What is the filtration rate for a single filter that is 20 feet wide by 25 feet long, when it is processing 3,000 gpm? 10.0 gpm/ft2 150 gpm/ft2 120 gpm/ft2 0.167 gpm/ft2 Correct! 6.0 gpm/ft2 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 54/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam Question 99 5.2 / 5.2 pts Chlorine disinfection is accomplished in a 1000-foot, 48-inch diameter pipeline at a 4.0 MGD water treatment facility. At the rated capacity of the plant, how many minutes of disinfection are provided in this pipeline? 4.52 minutes 43.1 minutes 12,000 minutes 77,900 minutes Correct! 33.8 minutes Question 100 5.2 / 5.2 pts 15,000 gallons must be added to a storage tank with a pump that will deliver 275 gpm. How much time will this operation require? 0.91 minutes Correct! 54.5 minutes 408 minutes https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 55/56 12/18/21, 3:14 PM Ron Eversole's Quiz History: Practice T1-T2 Certification Exam 7.29 minutes 3,270 minutes 1 / 1 pts Question 101 In Water Math, what does "cfs" stand for? Cumulative flow sequence Corrosion failure sources Correct! Cubic feet per second Continuous flow series Contamination probable sources Quiz Score: 250.6 out of 300 https://rsccd.instructure.com/courses/67923/quizzes/492998/history?version=5 56/56