Physical and Chemical Agents The time required to kill 90% of the microorganisms in a sample at a specific temperature is the F value D value thermal death point decimal reduction time F value D value thermal death point decimal reduction time ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following methods will not sterilize? Aqueous glutaraldehyde for 10 hours 121°C at 15 lb/in pressure for 15 to 20 minutes 100°C boiling water for 30 minutes Dry heat at 171°C for 1 to 2 hours Aqueous glutaraldehyde for 10 hours 121°C at 15 lb/in pressure for 15 to 20 minutes 100°C boiling water for 30 minutes Dry heat at 171°C for 1 to 2 hours 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 50 5 1 10 50 5 1 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following material is sterilized by use of red heat? All-glass syringes Inoculating wires and loops Glass slides Soiled dressings All-glass syringes Inoculating wires and loops Glass slides Soiled dressings ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Steam exposure of a material at 100°C for 20 minutes for three consecutive days is known as none of these inspissation autoclaving tyndallization none of these inspissation autoclaving tyndallization ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents If a canning procedure is not properly followed, which type of microbe is most likely to grow in the canned food? Obligate Aerobe Acidophile Obligate Anaerobe Mesophile Obligate Aerobe Acidophile Obligate Anaerobe Mesophile ANSWER DOWNLOAD EXAMIANS APP
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