8. Which disinfectant would be most effective against Staphylococcus found in a blood spill?
A.Phenol
B.Cetylpyridinium chloride
C.Hexachlorophene
D.None of these

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9. Which of the following substances can sterilize?
A.Alcohol
B.Cetylpyridinium chloride
C.Ethylene oxide
D.Chlorine

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10. Milk is pasteurized in batch method by keeping it at
A.63°C for 30 minutes
B.72°C for 60 seconds
C.73°C for 30 minutes
D.72°C for 6 minutes

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11. Preservation of foods by using salts and sugars works by
A.raising pH
B.lowering osmotic pressure
C.creating a hypertonic environment
D.creating a hypotonic environment

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12. Which of the following items could be sterilized by dry heat sterilization?
A.Intravenous (IV) solution
B.Plastic IV bags
C.Glass pipettes
D.rubber gloves

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13. Which of the following does not kill endospores?
A.Autoclave
B.Incineration
C.Hot air sterilization
D.Pasteurization

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14. Which disinfectant was the most effective against Salmonella"?
A.Phenol
B.Cetylpyridinium chloride
C.Hexachlorophene
D.Merthiolate

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