E-PolyLearning

201. Which of the following is sterilized with the help of glutaraldehyde?
a. Thermometers
b. Bronchoscopes
c. Cystoscopes
d. All of these
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Answer: (d).All of these

202. The time in minutes at a specific temperature needed to kill a population of cells is the
a. decimal reduction time
b. thermal death point
c. thermal death temperature
d. F value
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Answer: (d).F value

203. Which of the following is a limitation of the autoclave?
a. It takes too long to sterilize
b. It lacks the ability to inactivate viruses
c. It lacks the ability to kill endospores
d. It will destroy heat labile materials
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Answer: (d).It will destroy heat labile materials

204. Which of the following has most heat resistant spores?
a. Clostridium histolyticum
b. Clostridium perfringens
c. Bacillus stearothermophilus
d. Bacillus cereus
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Answer: (c).Bacillus stearothermophilus

205. The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the
a. decimal reduction time
b. thermal death point
c. thermal death temperature
d. thermal death time
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Answer: (b).thermal death point