Physical and Chemical Agents Which of the following is a limitation of the autoclave? It lacks the ability to inactivate viruses It lacks the ability to kill endospores It will destroy heat labile materials It takes too long to sterilize It lacks the ability to inactivate viruses It lacks the ability to kill endospores It will destroy heat labile materials It takes too long to sterilize ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is/are vapour-phase disinfectant/s? None of these Ethylene oxide Both (a) and (b) Formaldehyde None of these Ethylene oxide Both (a) and (b) Formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The organisms retained in the fluids filtered by Seitz filter is Clostridium Proteus Staphylococcus None of these Clostridium Proteus Staphylococcus None of these 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? 50 10 5 1 50 10 5 1 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following has most heat resistant spores? Clostridium perfringens Bacillus stearothermophilus Bacillus cereus Clostridium histolyticum Clostridium perfringens Bacillus stearothermophilus Bacillus cereus Clostridium histolyticum 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 freezer at -10°C Storage in a refrigerator on an agar slant Storage in a freezer at ultra low temperatures (-70°C) Storage on a petri plate at room temperature Storage in a freezer at -10°C Storage in a refrigerator on an agar slant Storage in a freezer at ultra low temperatures (-70°C) ANSWER DOWNLOAD EXAMIANS APP
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