Physical and Chemical Agents Which disinfectant was the most effective against Salmonella"? Phenol Merthiolate Hexachlorophene Cetylpyridinium chloride Phenol Merthiolate Hexachlorophene Cetylpyridinium chloride ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following skin disinfectant(s) is/are most frequently used? Ethyl alcohol none of these Both (a) and (b) Isopropyl alcohol Ethyl alcohol none of these Both (a) and (b) Isopropyl alcohol 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 freezer at ultra low temperatures (-70°C) Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature Storage in a freezer at -10°C Storage in a freezer at ultra low temperatures (-70°C) Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Steam exposure of a material at 100°C for 20 minutes for three consecutive days is known as none of these inspissation autoclaving tyndallization none of these inspissation autoclaving tyndallization ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following has most heat resistant spores? Bacillus cereus Clostridium perfringens Clostridium histolyticum Bacillus stearothermophilus Bacillus cereus Clostridium perfringens Clostridium histolyticum Bacillus stearothermophilus ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents One drawback to the use of ultraviolet light as a sterilizing agent is its failure to kill microbes located in the center of an object failure to bacterial spores failure to kill bacteria failure to kill microbes in a closed environment failure to kill microbes located in the center of an object failure to bacterial spores failure to kill bacteria failure to kill microbes in a closed environment ANSWER DOWNLOAD EXAMIANS APP
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