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Physical and Chemical Agents

Physical and Chemical Agents
Which of the following does not kill endospores?

Hot air sterilization
Autoclave
Pasteurization
Incineration

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Physical and Chemical Agents
Which of the following tests is designed to simulate the natural conditions under which the disinfectants are used in hospitals?

None of these
Capacity test
Phenol coefficient test
Minimum inhibitory concentration test

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Physical and Chemical Agents
Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour?

Oils and jellies
Swab sticks
All-glass syringes
All of these

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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?

Mesophile
Acidophile
Obligate Anaerobe
Obligate Aerobe

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Physical and Chemical Agents
Iodophores are mixture of

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

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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 point
thermal death time
thermal death temperature

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