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1-71.
Which of the following statements
is NOT correct regarding secondary
aerosols?
1.
They may cause recontamination
2.
They are clouds formed from
particles (bacteria or other
organisms)
3.
They may be suppressed by
wetting surfaces with oil or
water
4.
They do not recontaminate the
air that is breathed
1-72.
If available, what should you use
for the biological decontamination
of food packed in impermeable
packages?
1.
Sodium carbonate
2.
Vinegar
3.
Citric acid
4.
Sodium phosphate
1-73.
In an emergency when no regular
water treatment facilities are
available, which of the following
methods should be used to render
the water supply safe for drinking?
1.
Adding ethylene oxide
2.
Boiling the water for 20
minutes or longer
3.
Adding laundry bleach
4.
Filtering the water through
wood ashes
1-74.
Metal and china utensils that have
been exposed to light liquid
contamination should be immersed in
actively boiling water containing
an alkaline detergent for what
specific number of minutes?
1.
5
2.
10
3.
20
4.
30
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