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Physical and Chemical Agents

Physical and Chemical Agents
Which disinfectant would be most effective against Staphylococcus found in a blood spill?

Cetylpyridinium chloride
Hexachlorophene
Phenol
None of these

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Physical and Chemical Agents
Which of the following has most heat resistant spores?

Clostridium perfringens
Bacillus stearothermophilus
Bacillus cereus
Clostridium histolyticum

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Physical and Chemical Agents
If a canning procedure is not properly followed, which type of microbe is most likely to grow in the canned food?

Obligate Aerobe
Acidophile
Mesophile
Obligate Anaerobe

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Physical and Chemical Agents
The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the

decimal reduction time
thermal death temperature
thermal death point
thermal death time

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Physical and Chemical Agents
Iodophores are mixture of

iodine and alcohols
iodine and aldehydes
iodine and phenols
iodine and surface active agents

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Physical and Chemical Agents
Which of the following compounds are commonly used as general antiseptics to treat cuts and scratches?

Halogens
None of these
Ethylene oxide
Aldehydes

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