The United States Air Force Wfm Trivia Quiz!

98 Questions | Total Attempts: 98

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The United States Air Force Wfm Trivia Quiz! - Quiz

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Questions and Answers
  • 1. 
    Which reverse osmosis water purification units are specifically designed for the US Air Force? 
    • A. 

      WPES–10 and H–9518–1.

    • B. 

      WPES–20 and H–9518–2.

    • C. 

      WPES–30 and H–9518–3.

    • D. 

      WPES–40 and H–9518–4.

  • 2. 
    Which color band designates reverse osmosis water purification unit piping that carries filtered water? 
    • A. 

      Yellow

    • B. 

      Black

    • C. 

      Green

    • D. 

      Blue

  • 3. 
    Which color band designates reverse osmosis water purification unit piping that carries product water? 
    • A. 

      Yellow

    • B. 

      Black

    • C. 

      Green

    • D. 

      Blue

  • 4. 
     How many gallons per hour does the H–9518–2 reverse osmosis water purification unit produce (on average)? 
    • A. 

      600

    • B. 

      650

    • C. 

      1200

    • D. 

      1250

  • 5. 
    What is the capacity of the reverse osmosis water purification unit raw water pump? 
    • A. 

      30

    • B. 

      60

    • C. 

      90

    • D. 

      120

  • 6. 
     The movement of water through a permeable membrane from an area of lesser concentration to an area of higher concentration is called:
    • A. 

      Osmosis

    • B. 

      Reverse osmosis

    • C. 

      Reverse filtration

    • D. 

      Inverse preassure

  • 7. 
     What percent of organic materials in water is removed by the reverse osmosis water purification unit? 
    • A. 

      50

    • B. 

      79

    • C. 

      90

    • D. 

      99

  • 8. 
     Unless otherwise directed by medical authorities, how many parts per million of chlorine residual must you keep in the product water produced by the reverse osmosis water purification unit? 
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 9. 
    Which chemical is used as a coagulant aid during the reverse osmosis water purification unit treatment process? Which chemical is used as a coagulant aid during the reverse osmosis water purification unit treatment process?Which chemical is used as a coagulant aid during the reverse osmosis water purification unit treatment process?  
    • A. 

      Polymer

    • B. 

      Chlorine

    • C. 

      Citric Acid

    • D. 

      Sodium Hex

  • 10. 
    Sodium hex is fed by the reverse osmosis water purification unit chemical feed pump at the:
    • A. 

      Multimedia filter pump.

    • B. 

      Multimedia filter influent.

    • C. 

      Reverse osmosis element pump.

    • D. 

      Reverse osmosis element influent.

  • 11. 
    What type of valve is used to backwash the multimedia filter on the reverse osmosis water purification unit?
    • A. 

      Gate.

    • B. 

      Globe.

    • C. 

      Butterfly.

    • D. 

      Multiport.

  • 12. 
    The multimedia filter pressure gauge on the reverse osmosis water purification unit indicates:
    • A. 

      Suction pressure.

    • B. 

      Negative pressure.

    • C. 

      Differential pressure.

    • D. 

      Product water pressure.

  • 13. 
    What tests are taken utilizing the color comparator?
    • A. 

      Total dissolved solids.

    • B. 

      Nitrates

    • C. 

      Phosphates.

    • D. 

      Chlorine and pH.

  • 14. 
    In which order do the high-pressure safety devices on the WPES–20 reverse osmosis water purification unit activate?
    • A. 

      High-pressure relief valve, high-pressure switch, rupture disc assembly.

    • B. 

      High-pressure switch, high-pressure relief valve, rupture disc assembly.

    • C. 

      High-pressure relief valve, rupture-disc assembly, high-pressure switch.

    • D. 

      Low-pressure switch, high-pressure switch, rupture disc assembly, high-pressure relief valve.

  • 15. 
    Technically speaking, what physical impact does the choice of a clear water source have on the reverse osmosis water purification unit (ROWPU)?
    • A. 

      Lower working pressure is exerted on the RO elements.

    • B. 

      Water source will be relatively free of pollutants.

    • C. 

      Less frequent backwashings will be realized.

    • D. 

      Less wear and tear on the RO pump.

  • 16. 
    How far away from the campsite should you set up the reverse osmosis water purification unit?
    • A. 

      100 feet upstream.

    • B. 

      200 yards upstream.

    • C. 

      300 feet downstream.

    • D. 

      400 yards downstream.

  • 17. 
    Where are the two deionization cartridges packed in the H–9518–2 model reverse osmosis water purification unit?
    • A. 

      First layer.

    • B. 

      Second layer.

    • C. 

      Third layer.

    • D. 

      Fourth layer.

  • 18. 
    What is the maximum total dissolved solids (TDS) the factory-calibrated in-line TDS monitor can read?
    • A. 

      1,000.

    • B. 

      2,000

    • C. 

      3,000

    • D. 

      4,000

  • 19. 
    What initial action drives the ocean intake wellpoint into the ocean floor?
    • A. 

      Pressure exerted down on the wellpoint.

    • B. 

      Water pressure from the pump.

    • C. 

      Suction action of pump.

    • D. 

      Wellpoint driving tool.

  • 20. 
    Which technical order do you use when operating the H–9581–2 reverse osmosis water purification unit?
    • A. 

      40W4–13–41.

    • B. 

      39W9–13–41

    • C. 

      38W8–13–41

    • D. 

      37W7–13–41.

  • 21. 
    During initial start-up of the reverse osmosis water purification unit (ROWPU), all chemical feed valves must be set to:
    • A. 

      Off.

    • B. 

      Feed

    • C. 

      Prime.

    • D. 

      Standby.

  • 22. 
    What is the initial setting of all the chemical pump control knobs on the reverse osmosis water purification unit?
    • A. 

      0

    • B. 

      2

    • C. 

      6

    • D. 

      10

  • 23. 
    What is the maximum reverse osmosis pump pressure that should never be exceeded when operating the reverse osmosis water purification unit?
    • A. 

      What is the maximum reverse osmosis pump pressure that should never be exceeded when operating the reverse osmosis water purification unit?

    • B. 

      500 psi (seawater), 980 psi (brackish water).

    • C. 

      960 psi (seawater), 500 psi (brackish water).

    • D. 

      500 psi (seawater), 960 psi (brackish water).

  • 24. 
    What component of the reverse osmosis water purification unit controls the backwash procedure?
    • A. 

      Element cleaning switch.

    • B. 

      Backwash strainer.

    • C. 

      Backwash pump.

    • D. 

      Backwash timer.

  • 25. 
    What is the purpose of feeding citric acid into the reverse osmosis water purification unit (ROWPU) during the production run?
    • A. 

      Increase the pH of raw water.

    • B. 

      Increase the pH of product water.

    • C. 

      Reduce scale build-up on the RO elements.

    • D. 

      Reduce scale build-up on the cartridge filter elements.

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