Physical and Chemical Agents Preservation of foods by using salts and sugars works by raising pH lowering osmotic pressure creating a hypertonic environment creating a hypotonic environment raising pH lowering osmotic pressure creating a hypertonic environment creating a hypotonic environment ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is sterilized with the help of glutaraldehyde? Bronchoscopes Cystoscopes All of these Thermometers Bronchoscopes Cystoscopes All of these Thermometers ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which disinfectant would be most effective against Staphylococcus found in a blood spill? Hexachlorophene Cetylpyridinium chloride Phenol None of these Hexachlorophene Cetylpyridinium chloride Phenol None of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following was the first widely used antiseptic and disinfectant? Iodine Phenol Chlorine Alcohol Iodine Phenol Chlorine Alcohol ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following methods will not sterilize? Aqueous glutaraldehyde for 10 hours Dry heat at 171°C for 1 to 2 hours 100°C boiling water for 30 minutes 121°C at 15 lb/in pressure for 15 to 20 minutes Aqueous glutaraldehyde for 10 hours Dry heat at 171°C for 1 to 2 hours 100°C boiling water for 30 minutes 121°C at 15 lb/in pressure for 15 to 20 minutes 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 freezer at -10°C Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature Storage in a freezer at ultra low temperatures (-70°C) Storage in a freezer at -10°C Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature Storage in a freezer at ultra low temperatures (-70°C) ANSWER DOWNLOAD EXAMIANS APP
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