31. The organisms retained in the fluids filtered by Seitz filter is

A. Proteus
B. Staphylococcus
C. Clostridium
D. None of these

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32. Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour?

A. Swab sticks
B. All-glass syringes
C. Oils and jellies
D. All of these

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33. For sterilization of which material gamma rays can be used?

A. Catheters
B. Plastic syringes
C. Canulas
D. None of these

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34. 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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35. 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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