Physical and Chemical Agents Bactericidal concentration of phenol is 0.75% 0.5% 0.25% 1% 0.75% 0.5% 0.25% 1% ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is not a disinfectant containing a heavy metal? Copper sulfate Mercurochrome Silver nitrate Chlorine Copper sulfate Mercurochrome Silver nitrate Chlorine ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? None of these Substantially decreases enzymatic activity, slowing microbial reproduction Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Induces electrons and protons to jump out of the molecules of the microbe None of these Substantially decreases enzymatic activity, slowing microbial reproduction Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Induces electrons and protons to jump out of the molecules of the microbe ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following items could be sterilized by dry heat sterilization? Intravenous (IV) solution Glass pipettes Plastic IV bags rubber gloves Intravenous (IV) solution Glass pipettes Plastic IV bags rubber gloves 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 50 5 10 1 50 5 10 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which is the most important surface active disinfectants? Anionic compounds Amphoteric compounds Cationic compounds Non-ionic compounds Anionic compounds Amphoteric compounds Cationic compounds Non-ionic compounds ANSWER DOWNLOAD EXAMIANS APP
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