Attempt #2 Ron Eversole's Quiz History_ Advanced Treatment Topics Quiz.pdf

12/18/21, 3:24 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Advanced Treatment Topics Quiz Results for Ron Eversole Score for this attempt: 84 out of 100 Submitted Dec 5 at 8:03pm This attempt took 32 minutes. Question 1 2 / 2 pts In activated carbon filtration, the measuremen...

12/18/21, 3:24 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Advanced Treatment Topics Quiz Results for Ron Eversole Score for this attempt: 84 out of 100 Submitted Dec 5 at 8:03pm This attempt took 32 minutes. Question 1 2 / 2 pts In activated carbon filtration, the measurement of detention time in the process is called the Process velocity Molecular weight cutoff Correct! Empty bed contact time Filtration rate Surface loading rate Question 2 2 / 2 pts A mixture of suspended particles in water is known as a Saturated solution https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 1/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Hydrophilic solution Correct! Slurry Homogeneous mixture Solution Question 3 2 / 2 pts PAC treatment is commonly used to combat Phosphates Pathogens Fluoride Correct! Seasonal blue-green algae odors Nitrates Question 4 2 / 2 pts Which of the following materials is commonly used as a filter medium for the removal of SOCs from drinking water? https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 2/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Garnet Anthracite coal Correct! GAC Sodium zeolite Manganese greensand Question 5 2 / 2 pts Which of the following could be used as a source of carbon for manufacturing activated carbon? Nut shells Lignite coal Bituminuous coal Correct! All of the above Wood Question 6 https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 2 / 2 pts 3/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Compared to the concentration of synthetic organic matter, the concentration of natural organic matter in natural water supplies is typically Correct! Significantly greater. Significantly less Essentially the same Slightly greater Slightly less Question 7 2 / 2 pts Which of the following substances will exhibit an earthy/musty odor in water? Carbon tetrachloride Correct! Geosmin Dichloramine Endorphin Endrin https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 4/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Question 8 2 / 2 pts In water quality, "TOC" stands for Tests Of Contaminants Terms Of Contamination Time Of Coagulation Total Odorous Compounds Correct! Total Organic Carbon Question 9 2 / 2 pts Which of the following treatment methods is most likely to be effective in removing a VOC from the water supply? Enhanced coagulation Conventional treatment Correct! Packed tower aeration Ion exchange Manganese greensand filtration https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 5/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Question 10 2 / 2 pts A common means of transferring ozone gas into water is the Axial flow pump Correct! Fine bubble diffuser Volumetric feeder Positive displacement pump Gravimetric feeder Question 11 2 / 2 pts Which of the following metal contaminants of drinking water could be present due to the effects of corrosion? Lead Correct! All of the above Iron Manganese https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 6/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Zinc Question 12 2 / 2 pts An insulated flange set is a mechanical device intended to prevent Cathodic protection Correct! Galvanic corrosion DBP formation Sequestration Sacrificial anodes Question 13 2 / 2 pts Water that has solute levels above the saturation level is Stable Corrosive Polyunsaturated https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 7/26 12/18/21, 3:25 PM Correct! Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Super saturated Unsaturated Question 14 2 / 2 pts The maximum concentration of a solute that can be dissolved within a solution is known as Correct! Saturation Corrosion Stabilization Destabilization Chelation Question 15 2 / 2 pts Which of the following is a metal constituent with a primary drinking water standard that is often found in drinking water due to the effects of corrosion? Sodium https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 8/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Calcium Potassium Correct! Lead Magnesium Question 16 2 / 2 pts A metal that is electrically connected to an essential metal component, and that is intended to corrode instead of the essential component is known as a Correct! None of the above Alloy Sequestering agent Chelating agent Corrosion inhibitor Question 17 0 / 2 pts Water that is not saturated will tend to be https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 9/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Stable Volatile Semipermeable rrect Answer Corrosive u Answered Depositing Question 18 2 / 2 pts The accumulation of metal (usually iron) hydroxides at the anode of a corrosion concentration cell is known as a Cathodic protection Sequestering agent Cathode Correct! Tubercule Chelating agent Question 19 https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 2 / 2 pts 10/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz A gravimetric chemical feeder determines the amount of chemical being applied by measuring its Moisture content Specific gravity Correct! Weight Density Volume Question 20 2 / 2 pts Fluoridation chemicals have a known percent fluoride and a specified percent Sodium Chloride Nitrate Correct! Purity Water https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 11/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Question 21 2 / 2 pts The purpose of fluoride addition to drinking water is to improve the Hemoglobin of children Heart health of seniors Correct! Dental health of children Dental health of seniors Cardiovascular health for all ages Question 22 0 / 2 pts What is the secondary MCL for fluoride in drinking water? u Answered 0.5 mg/L rrect Answer 2.0 mg/L There is no secondary standard for fluoride. 0 mg/L 4.0 mg/L https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 12/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Question 23 2 / 2 pts What is the most common means to feed a liquid chemical solution into drinking water supplies? Gravimetric feeders Vertical turbine pumps Ejectors Saturators Correct! Positive displacement pumps Question 24 2 / 2 pts Which of the following is the smallest particle that exhibits all the properties and characteristics of a compound? Atom Correct! Molecule Nonion Meson https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 13/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Quark Question 25 2 / 2 pts The chemical solution used to restore the treatment capacity of an ion exchange resin is called Manganese greensand Nonionic Correct! Brine Combined chlorine Potassium permanganate Question 26 0 / 2 pts The surface upon which ion exchange takes place is called the Magnetic surface Neutron rrect Answer Resin https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 14/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Activation site u Answered Surface area Question 27 0 / 2 pts Which of the following processes can cause the precipitation of dissolved manganese? Chlorine dioxide treatment u Answered Oxidation with potassium permanganate Chlorination rrect Answer All of the above Ozonation Question 28 2 / 2 pts The ability of manganese greensand filters to remove Iron and Manganese from water is frequently enhanced by the addition of https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 15/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Hexametaphosphate Chloramines Caustic soda Chelating agents Correct! Permanganate Question 29 2 / 2 pts Which of the following water sources is most likely to contain significant quantities of dissolved manganese? Perennial streams Correct! The hypolimnion of a stratified lake Ephemeral streams Recycled water Shallow wells Question 30 https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 2 / 2 pts 16/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz The main concern with elevated levels of iron in drinking water is Correct! Staining of plumbing and laundry Increased DBP levels Pathogens Interference with coagulation Corrosion Question 31 2 / 2 pts Which of the following is the most likely result of raising the pH of water? Improved chlorine disinfection Correct! The formation of insoluble precipitates of manganese Chelation of corrosion products Restabilization of colloidal particles A decrease in the Langlier Index https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 17/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Question 32 2 / 2 pts Which of the following membrane processes will have the largest pore size? Nanofiltration All of these processes have similar pore sizes. Correct! Microfiltration Ultrafiltration Reverse osmosis Question 33 2 / 2 pts Which of the following processes is capable of the direct removal of viruses without any coagulation/flocculation pretreatment? Reverse osmosis Correct! All of the above Ultrafiltration Nanofiltration https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 18/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz None of the above Question 34 2 / 2 pts Which of the following processes will use hollow fiber membranes? Ion exchange Correct! Ultrafiltration Reverse osmosis Activated carbon Manganese greensand filtration Question 35 2 / 2 pts Which of the following processes is capable of desalination? Osmosis Activated carbon filtration Sequestration https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 19/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Pressure filtration Correct! Reverse osmosis Question 36 0 / 2 pts What is the approximate reject rate for microfiltration and ultrafiltration? 0.5 % rrect Answer 5% The reject rate varies from 10 % - 40 % for these processes. 95 % u Answered 50 % Question 37 2 / 2 pts Which of the following is a concern associated with hard water? Correct! None of the above https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 20/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Increased DBP formation Anaerobic water conditions Increased risk of waterborne pathogens Dental fluorosis Question 38 2 / 2 pts Temporary hardness in water is also known as Chloride hardness Sulfate hardness Random hardness Manganese hardness Correct! Carbonate hardness Question 39 0 / 2 pts Water that has been treated by Lime Softening will be https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 21/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Lower in TDS u Answered Higher in pH Corrosive rrect Answer All of the above Lower in Calcium Question 40 0 / 2 pts Non-carbonate hardness is also known as u Answered Sulfate hardness Bicarbonate hardness Total hardness Carbonate hardness rrect Answer Permanent hardness Question 41 https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 0 / 2 pts 22/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Calcium hydroxide is also known as u Answered Lye A DBP Caustic soda Soda ash rrect Answer Lime Question 42 2 / 2 pts Elevating the pH of water is an effective way to Increase corrosiveness of the water Correct! Precipitate most multivalent cations Improve disinfection with free chlorine Neutralize particle surface charges Decrease scaling / deposition of water https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 23/26 12/18/21, 3:25 PM Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Question 43 2 / 2 pts Which of the following is an anion that contributes alkalinity to water? Bicarbonate None of the above Carbonate Hydroxide Correct! All of the above Question 44 2 / 2 pts Which of the following chemicals would be applied to water when high levels of magnesium carbonate hardness needed to be removed? Ferric chloride Carbon dioxide Activated carbon Elemental chlorine https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 24/26 12/18/21, 3:25 PM Correct! Ron Eversole's Quiz History: Advanced Treatment Topics Quiz Lime Question 45 4 / 4 pts Blending is being used to control arsenic levels. The first source has a flow rate of 1.0 MGD and an arsenic level of 15 ppb. The second source has a flow rte of 1.2 MGD and an arsenic level of 6 ppb. What is the blended arsenic level in ppb? Correct! 10 15 0.0 0.6 2.5 Question 46 4 / 4 pts A 2.5 MGD treatment plant receives water with 0.65 mg/L of Iron, and delivers water with 0.05 mg/L of Iron. How many pounds of Iron are removed at this plant each day? https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 25/26 12/18/21, 3:25 PM Correct! Ron Eversole's Quiz History: Advanced Treatment Topics Quiz 12.5 1.5 0.60 1.04 13.5 Question 47 4 / 4 pts A 25 MGD treatment plant using lime/soda ash softening reduces the 280 mg/L total hardness to 40 mg/L total hardness. How many pounds of hardness are removed each day at this facility? Correct! 50,040 58,340 6,000 85,068 8,340 Quiz Score: 84 out of 100 https://rsccd.instructure.com/courses/67923/quizzes/492999/history?version=2 26/26