Physical and Chemical Agents Which of the following is not a disinfectant containing a heavy metal? Mercurochrome Chlorine Silver nitrate Copper sulfate Mercurochrome Chlorine Silver nitrate Copper sulfate ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Milk is pasteurized in batch method by keeping it at 63°C for 30 minutes 72°C for 6 minutes 73°C for 30 minutes 72°C for 60 seconds 63°C for 30 minutes 72°C for 6 minutes 73°C for 30 minutes 72°C for 60 seconds ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour? Swab sticks All of these Oils and jellies All-glass syringes Swab sticks All of these Oils and jellies All-glass syringes ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The time required to kill 90% of the microorganisms in a sample at a specific temperature is the decimal reduction time D value F value thermal death point decimal reduction time D value F value thermal death point ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is most effective for sterilizing mattresses and plastic petri plates? Ultraviolet radiation Ethylene oxide Glutaraldehyde Chlorine Ultraviolet radiation Ethylene oxide Glutaraldehyde Chlorine 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 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) Storage in a freezer at -10°C Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature ANSWER DOWNLOAD EXAMIANS APP
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