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Physical and Chemical Agents

Physical and Chemical Agents
Which of the following articles can be sterilized in an autoclave?

Gloves
Dressing material
All of these
Culture media

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Physical and Chemical Agents
Milk is pasteurized in batch method by keeping it at

72°C for 60 seconds
73°C for 30 minutes
63°C for 30 minutes
72°C for 6 minutes

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Physical and Chemical Agents
Microbes can be removed from a liquid solution by the process of

desiccation
filtration
freeze-drying
osmosis

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Physical and Chemical Agents
One drawback to the use of ultraviolet light as a sterilizing agent is its

failure to kill microbes located in the center of an object
failure to kill bacteria
failure to bacterial spores
failure to kill microbes in a closed environment

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Physical and Chemical Agents
Which of the following is not a disinfectant containing a heavy metal?

Copper sulfate
Silver nitrate
Chlorine
Mercurochrome

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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?

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

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