The United States Air Force Wfm Trivia Quiz!
.
- 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.
Questions: 65 | Attempts: 7911 | Last updated: Mar 22, 2022
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