1. The Katadyn® Combi microfilter can filter up to how many gallons of water before the ceramic element needs to be replaced?
A) 100
B) 750
C) 4,000
D) 13,000

2. A 55-gallon water barrel weighs approximately how much when it is full?
A) 125 lbs
B) 220 lbs
C) 470 lbs
D) 510 lbs

3. At a minimum, how much water should you store per person for a two week period?
A) 7 gallons
B) 14 gallons
C) 21 gallons
D) 28 gallons

4. Which of the following is NOT a commonly used method to purify water?
A) Boiling
B) Aeration
C) Adding a chemical
D) Ultraviolet (UV) light

5. Boiling water destroys which of the following?
A) Pollutants
B) Poor taste
C) Foul odors
D) Most types of disease-causing organisms

6. How much liquid bleach (regular, unscented) should you add to a gallon of water to help disinfect it?
A) 1/16 tsp - 4 drops
B) 1/8 tsp - 8 drops
C) 1/3 tsp - 21 drops
D) 1/2 tsp - 32 drops

7. A ceramic microfilter will filter all of the following EXCEPT:
A) Viruses
B) Bacteria
C) Giardia
D) Cryptosporidium

8. Solar stills are capable of distilling tainted water from which one of the following sources?
A) Radiator fluid
B) Seawater
C) Fuels
D) None of the above

9. Although protozoa (Giardia, Cryptosporidium, etc.) are removed by most filters, how long does it take to kill them with Chlorine or Chlorine Dioxide?
A) 1 hour
B) 2 hours
C) 4 hours
D) 6 hours

10. The combination many experts now recommend when viruses may be present in water is first microfiltration, then:
A) Boiling
B) Distillation
C) Only filtration is needed
D) Chemical Treatment