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Physical and Chemical Agents

Physical and Chemical Agents
Bactericidal concentration of phenol is

1%
0.5%
0.25%
0.75%

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Physical and Chemical Agents
Which of the following methods will not sterilize?

100°C boiling water for 30 minutes
Dry heat at 171°C for 1 to 2 hours
121°C at 15 lb/in pressure for 15 to 20 minutes
Aqueous glutaraldehyde for 10 hours

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Physical and Chemical Agents
Complete destruction of the microorganisms is commonly known as

sterilization
disinfection
antisepsis
none of these

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Physical and Chemical Agents
The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the

thermal death temperature
thermal death point
decimal reduction time
thermal death time

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Physical and Chemical Agents
A(n)____is used to prevent infection by killing or inhibiting pathogen growth on animal tissues.

sanitizer
bacteriostatic agent
disinfectant
antiseptic

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Physical and Chemical Agents
Which of the following is sterilized with the help of glutaraldehyde?

Bronchoscopes
All of these
Cystoscopes
Thermometers

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