Physical and Chemical Agents Which of the following was the first widely used antiseptic and disinfectant? Chlorine Phenol Iodine Alcohol Chlorine Phenol Iodine Alcohol ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is bactericidal? Ionizing radiation Membrane filtration Deep freezing Freeze-drying Ionizing radiation Membrane filtration Deep freezing Freeze-drying ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The time in minutes at a specific temperature needed to kill a population of cells is the thermal death temperature F value decimal reduction time thermal death point thermal death temperature F value decimal reduction time thermal death point 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following compounds are commonly used as general antiseptics to treat cuts and scratches? Halogens Ethylene oxide Aldehydes None of these Halogens Ethylene oxide Aldehydes None of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following skin disinfectant(s) is/are most frequently used? none of these Isopropyl alcohol Ethyl alcohol Both (a) and (b) none of these Isopropyl alcohol Ethyl alcohol Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
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