3-69.
How often is a calendar inspec-
tion conducted on an oxygen mask?
1.
180 days
2.
90 days
3.
30 days
4.
60 days
3-70. The preferred solution for
cleaning the oxygen mask is a
mixture of 1/4 to 1/2 ounce of
cleaning compound added to
3-71.
To clean the inhalation/
exhalation valve,
you should use
1.
Clorox and distilled water
2.
benzalkonium chloride and
distilled water
3.
isopropyl alcohol and
distilled water
4.
either 2 or 3 above
1.
1 pint of water
2.
1 gallon of water
3.
2 gallons of water
4.
1 quart of water
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