which of the following is true about a valuing diversity effort?
it "happens" because top-level officials require it
it occurs because a central service director desires it
it is a "problem" in which a committee "decides what to do"
none of the above statements is correct
~ none of the above s...
_____ is used to treat the final rinse water used for cleaning?
-water conductivity
-sanitization
-deionization
-sterilization
✓✓~ deionizaiton
bluish or rainbow-type stains are caused by _____ in the water
-chlorides and solids
-iron and silicates
-calcium
-flouride
✓✓~ iron and silicates
the ideal level of silicates in water used for cleaning is _____ ppm or less
-200
-150
,-100
-50
✓✓~ 100
purified water pH
-4.5-5.5
-5.5-6.5
-6.5-7.5
-7.5-8.5
✓✓~ 6.5-7.5
tap water should ideally have a chloride concentration of ____ ppm or less
-200
-150
-100
-50
✓✓~ 100
water purification usually involves the use of a:
prefilter
postfilter
,pre or post filter
pre and post filter
✓✓~ pre and post filter
water that is turbid is:
hot
tepid
clear
cloudy
✓✓~ cloudy
water softeners are used to remove ____ in the water
iron and pyrogens
silicates and pyrogens
chloride and iron
calcium and magnesium
✓✓~ calcium and magnesium
deionized water is used for:
sterile irrigation
heating/cooling therapy units
, injection
steam sterilizers
✓✓~ heating and cooling therapy units
which of the following can be removed from water when using reverse osmosis
bacteria
pyrogens
endotoxins
all of the above
✓✓~ all of the above
multi-enzymatic cleaning products containing lipase are useful for cleaning _______
protein soils
starches
fats
sugars
✓✓~ fats
which of the following kills microorganisms?
soaps
detergents
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