Physical and Chemical Agents

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Physical and Chemical Agents

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Question 1 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Preservation of foods by using salts and sugars works by
A
raising pH
B
lowering osmotic pressure
C
creating a hypertonic environment
D
creating a hypotonic environment
Question 2 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
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
Question 3 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Which of the following articles can be sterilized in an autoclave?
A
Gloves
B
Culture media
C
Dressing material
D
All of these
Question 4 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Which of the following skin disinfectant(s) is/are most frequently used?
A
Isopropyl alcohol
B
Ethyl alcohol
C
Both (a) and (b)
D
none of these
Question 5 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Which of the following is bactericidal?
A
Membrane filtration
B
Ionizing radiation
C
Freeze-drying
D
Deep freezing
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