Quiz 2: Capacity Sizing Practice (0.25 CPD)
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1. What is 30% of 3,500?
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2. What is the % difference between 20,000 and 36,000 grains?
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3. The action level for lead is 15ppb. What is this in ppm?
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4. Your customer has 26gpg of hard water. What is this in µg/L?
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5. If you have 450mg/L of Ca(HCO3)2, what is this in gpg expressed as Ca(CO3)2?
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6. If your customer has hard water of 26 gpg as CaCO3, how much sodium (in milligrams) is released by the softener into 1 liter of water?
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7. From the chart below, what is the salt dosage for the 36,000 grains capacity?
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8. Using the chart above, what is the salt efficiency of the unit with 36,000 capacity?
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9. If using the resin bed with 20,000 grains capacity, and the water has 135ppm hardness, what is the processed water volume for this resin bed (no reserve) if the family uses 210gallons/day?
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10. Using the same data as the previous question, now add in a 20% reserve, what is the new processed water volume with a 20% reserve?
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