Physical and Chemical Agents Which of the following is not a disinfectant containing a heavy metal? Copper sulfate Silver nitrate Mercurochrome Chlorine Copper sulfate Silver nitrate Mercurochrome Chlorine ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Microbes can be removed from a liquid solution by the process of freeze-drying filtration desiccation osmosis freeze-drying filtration desiccation osmosis 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? 10 5 50 1 10 5 50 1 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Preservation of foods by using salts and sugars works by creating a hypertonic environment lowering osmotic pressure creating a hypotonic environment raising pH creating a hypertonic environment lowering osmotic pressure creating a hypotonic environment raising pH ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is a limitation of the autoclave? It will destroy heat labile materials It lacks the ability to inactivate viruses It takes too long to sterilize It lacks the ability to kill endospores It will destroy heat labile materials It lacks the ability to inactivate viruses It takes too long to sterilize It lacks the ability to kill endospores ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following methods will not sterilize? 121°C at 15 lb/in pressure for 15 to 20 minutes Dry heat at 171°C for 1 to 2 hours Aqueous glutaraldehyde for 10 hours 100°C boiling water for 30 minutes 121°C at 15 lb/in pressure for 15 to 20 minutes Dry heat at 171°C for 1 to 2 hours Aqueous glutaraldehyde for 10 hours 100°C boiling water for 30 minutes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS