A&B Test Questions - Florida Rural Water Association

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<strong>Water</strong> Chemistry1. Which of the following is not a correct statement for the specific conductance test?a. Specific conductance is measured in microhmos per centimeterb. Specific conductance is the water’s ability to conduct currentc. Organic matter such as sucrose will increase the specific conductanced. Specific conductance can be used to estimate dissolved solids concentrations in thewatere. Specific conductance is affected by temperature2. pH is a measure of thea . amount of acidb. strength of an acidc. acidityd. alkalinity3. Noncarbonate hardness is caused bya. alkalinityc. calciumc. bicarbonate ionsd. sulfates4. Carbonate hardness is caused bya. carbonate and bicarbonate ionsb. carbonate ionsc. bicarbonate ionsd. sulfates5. Alkalinity can also be calleda. carbonate hardnessb. noncarbonate hardnessc. phenolophthalein alkalinityd. methyl alkalinity6. Alkalinity is expressed asa. mg/l phenolophthalein alkalinityb. mg/l of methyl alkalinityc. mg/l of calcium carbonated. total alkalinity46
7. A shorthand name for a chemical element isa. chemical compoundb. chemical formulac. scientific notationd. chemical symbol8. Organisms that can make their own food from strictly inorganic matter are calleda. autotrophicb. parasiticc. heterotrophicd. aerobic9. Oxygen bound up in such compounds as sulfates and nitrates may serve as Oxygen sourcesfora. aerobic organismsd. plantsc. algaed. facultative organism.10. When shutting down a fluoride system operators shoulda. confirm that safety guards are in placeb. examine all fittings and drains for leaksc. flush out solution linesd. inspect all equipment for binding and rubbing11. Free chlorine residual refers toa. dichloramirieb. hypochlorinationc. trichloramined. total chlorine12. Which chemical is used to oxidize iron and manganesea. alumb. monochloraminec. calcium oxided. potassium permanganate47
Page 2 and 3: Table of ContentsCHLORINATION AND D
Page 4: 6: Chlorine dioxide reacts with wat
Page 8 and 9: 25: Which one of the following is t
Page 10 and 11: Disinfection By-Products1: Trihalom
Page 12 and 13: Lime Softening1. Minimum hardness t
Page 14 and 15: 11. Using the analyses below, calcu
Page 16 and 17: 21: In spilt treatment, a portion o
Page 18 and 19: 30. What will the dosage rate be fo
Page 20 and 21: Ion Exchange Softening1. Minimum ha
Page 22 and 23: 12. The third stage in the ion exch
Page 24 and 25: 6. Polarization in an RO system is
Page 26 and 27: 7. The primary source of household
Page 28 and 29: 16. A Langlier Index 0 or a Driving
Page 30 and 31: Iron and Manganese Removal1. The mi
Page 32 and 33: Taste and Odor Removal1. The first
Page 34 and 35: Problem: Marshy, or woody odor. Use
Page 36 and 37: 6. What should you do if test resul
Page 38 and 39: 14. All but one of the choices belo
Page 40 and 41: 6. It is in the middle of the summe
Page 42 and 43: 5. Your feed rate scale for Floccul
Page 44 and 45: 11. You are considering the additio
Page 48 and 49: 13. Health authorities encourage us
Page 50 and 51: 24. A well water has a pH of 6.2, a
Page 52 and 53: 35. Zeta potential is nota. an elec

A&B Test Questions - Florida Rural Water Association

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