A&B Test Questions - Florida Rural Water Association

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13. Health authorities encourage use of reclaimed water fora. drinking water supplyb. municipal swimming poolsc. deep well injectiond. landscape impoundment’s14. Which of the following affect the efficiency of copper sulfatea. dissolved oxygenb. organic carbonc. irond. temperature15. Possible Checksa. check for toxic conditionsb. check for dissolved oxygenc. check for algaed. check or organics16. Possible solutiona. ensure adequate chlorinationb. increase calcium oxide dosec. apply ferric chlorided. apply copper sulfate17. You are conducting a pH test with a meter which does not have a slope knob. You must usethe temperature knob to reach pH 10. Which action should you take?a. Add more pH to buffer solutionb. Allow more time for the CO2 to doissapatec. Replace the electrodesd. Allow more time for the temperature to stabilizee. Change the buffer solution to a pH 10 to 11.48
18. Flow recordersa. record the rate of flow at a given timeb. record the total flow through the plantc. function similar to an odometerd. record raw water flow19. Samples taken for PH measurement should bea. refrigeratedb. tested within one hourc. allowed to warm to room temperatured. measured for temperature20. Advantages of using a dissolved oxygen probe and meter include.a. less chance of errorb. probe and meter need little preparationc. allow measurements to be made directly in the streamd. all of the above21. Troubleshooting is a technique fora. correcting process operational problemsb. correcting equipment operational problemsc. identifying problems, causes, and solutionsd. preventing process problems22. Oxygen transfer rate is dependent ona. size of air bubblesb. size of aerator motorc. total area of liquid exposed to aird. rate of flow23. Hypochlorite tends toa. Increase pHb. Decrease pHc. have no effect on PHd. decrease alkalinity49
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 46 and 47: Water Chemistry1. Which of the foll
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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