Physical and Chemical Agents Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour? All of these Swab sticks Oils and jellies All-glass syringes All of these Swab sticks Oils and jellies All-glass syringes ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which disinfectant was the most effective against Salmonella"? Hexachlorophene Merthiolate Cetylpyridinium chloride Phenol Hexachlorophene Merthiolate Cetylpyridinium chloride Phenol ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following methods will not sterilize? 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 Dry heat at 171°C for 1 to 2 hours ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is best used for long term storage of microbial samples when carried out properly? Storage in a refrigerator on an agar slant Storage in a freezer at ultra low temperatures (-70°C) Storage in a freezer at -10°C Storage on a petri plate at room temperature Storage in a refrigerator on an agar slant Storage in a freezer at ultra low temperatures (-70°C) Storage in a freezer at -10°C Storage on a petri plate at room temperature ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which is the most important surface active disinfectants? Non-ionic compounds Amphoteric compounds Cationic compounds Anionic compounds Non-ionic compounds Amphoteric compounds Cationic compounds Anionic compounds ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have low pH toxic alkaline chemicals high concentration of solutes insufficient nutrients low pH toxic alkaline chemicals high concentration of solutes insufficient nutrients ANSWER DOWNLOAD EXAMIANS APP
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