Physical and Chemical Agents Which of the following has most heat resistant spores? Clostridium histolyticum Bacillus cereus Bacillus stearothermophilus Clostridium perfringens Clostridium histolyticum Bacillus cereus Bacillus stearothermophilus Clostridium perfringens ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is a limitation of the autoclave? It lacks the ability to inactivate viruses It will destroy heat labile materials It lacks the ability to kill endospores It takes too long to sterilize It lacks the ability to inactivate viruses It will destroy heat labile materials It lacks the ability to kill endospores It takes too long to sterilize ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is bactericidal? Freeze-drying Deep freezing Ionizing radiation Membrane filtration Freeze-drying Deep freezing Ionizing radiation Membrane filtration ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is/are vapour-phase disinfectant/s? Both (a) and (b) None of these Ethylene oxide Formaldehyde Both (a) and (b) None of these Ethylene oxide Formaldehyde 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 bacteria failure to kill microbes located in the center of an object failure to bacterial spores failure to kill microbes in a closed environment failure to kill bacteria failure to kill microbes located in the center of an object failure to bacterial spores failure to kill microbes in a closed environment 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? 1 10 5 50 1 10 5 50 ANSWER DOWNLOAD EXAMIANS APP
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