Physical and Chemical Agents Which disinfectant was the most effective against Salmonella"? Phenol Hexachlorophene Cetylpyridinium chloride Merthiolate Phenol Hexachlorophene Cetylpyridinium chloride Merthiolate ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound? 10 5 50 1 10 5 50 1 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is/are vapour-phase disinfectant/s? None of these Both (a) and (b) Ethylene oxide Formaldehyde None of these Both (a) and (b) Ethylene oxide Formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have insufficient nutrients toxic alkaline chemicals low pH high concentration of solutes insufficient nutrients toxic alkaline chemicals low pH high concentration of solutes ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following methods will not sterilize? Dry heat at 171°C for 1 to 2 hours 121°C at 15 lb/in pressure for 15 to 20 minutes 100°C boiling water for 30 minutes Aqueous glutaraldehyde for 10 hours Dry heat at 171°C for 1 to 2 hours 121°C at 15 lb/in pressure for 15 to 20 minutes 100°C boiling water for 30 minutes Aqueous glutaraldehyde for 10 hours ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Media containing spores and thermolabile constituents are sterilized by dry heat UV radiation tyndalization pasteurization dry heat UV radiation tyndalization pasteurization ANSWER DOWNLOAD EXAMIANS APP
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