What are some methods to purify water?
~Purifying with a commercial micro filter ~Chemically treating water with chlorine or iodine ~Boiling vigorously for at least one minute
VERIFIED AGAINST THE OFFICIAL SOURCE
“Boiling is the safest method for purifying water. Bringing water to a rolling boil for one minute at sea level will kill all waterborne pathogens. If above 8,000 feet, the boiling time should be extended to 3 minutes.”
— ATP 3-50.21, Survival (18 September 2018), Ch. 3 Water, para 3-41 ↗Alternate answers seen on other CBTs
The same question shows up worded slightly differently across CBT versions. Here are the other answer variants we've indexed.
Purifying with a commercial micro filter Boiling vigorously for at least one minute Chemically treating water with chlorine or iodine
Blood Chit Sere →Boiling vigorously for at least one minute (correct) Chemically treating water with chlorine or iodine (correct) Purifying with a commercial micro filter (correct)
Jko Direct →1.Chemically treating water with chlorine or iodine 2.Purifying with a commercial micro filter 3.Boiling vigorously for at least one minute
Jko Sere 100.2 Pre Test Answers →Boiling vigorously for at lease one minute Chemically treating water with chlorine or iodine Purifying with commercial micro filter
Score Sere →-Purifying with a commercial micro filter -Chemically treating water with chlorine or iodine -Boiling vigorously for at least one minute
Sere 100.2 Military Pretest Answers →