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Question 1 of 10
1. Question
This method of pasteurization involves passing a fluid such as milk through a tube at 72 degrees Celsius for 15 seconds.
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Question 2 of 10
2. Question
True or False. Bacteria that have been lyophilized can be brought back to a living state of metabolic activity.
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Question 3 of 10
3. Question
Which of these would be best suited to sterilization by the application of dry heat in an oven rather than an autoclave?
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Question 4 of 10
4. Question
Which of the following is not recommended for sterilization in an autoclave?
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Question 5 of 10
5. Question
An autoclave delivers __________ as much heat energy to the surface of an object than boiling or steaming at normal atmospheric pressure.
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Question 6 of 10
6. Question
When using boiling water to reduce or eliminate microbes, why is it necessary boil for a longer period at higher altitudes than lower ones to achieve the same effect?
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Question 7 of 10
7. Question
The lowest temperature at which all microbial growth stops when incubated for 10 minutes at a pH of 7.
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Question 8 of 10
8. Question
This term describes the reduction of microbes from the surface of an object.
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Question 9 of 10
9. Question
You work in a disinfectant testing facility and are asked to determine which of a series of chemical disinfectants is most effective at controlling the growth of common household germs such as Staphylococcus aureus, Escherichia coli and others at a low enough concentration to be less damaging to the skin and mucus membranes of the user. Which of the following would be the best way to evaluate this?
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Question 10 of 10
10. Question
These agents of microbial control kill all pathogens and other life forms when applied correctly.
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