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 -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) Storage on a petri plate at room temperature ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which is the most important surface active disinfectants? Anionic compounds Amphoteric compounds Non-ionic compounds Cationic compounds Anionic compounds Amphoteric compounds Non-ionic compounds Cationic compounds 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 point decimal reduction time F value thermal death temperature thermal death point decimal reduction time F value thermal death temperature 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 inspissation autoclaving tyndallization none of these inspissation autoclaving tyndallization none of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following tests is designed to simulate the natural conditions under which the disinfectants are used in hospitals? Minimum inhibitory concentration test Capacity test None of these Phenol coefficient test Minimum inhibitory concentration test Capacity test None of these Phenol coefficient test ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following material is sterilized by use of red heat? Inoculating wires and loops Soiled dressings Glass slides All-glass syringes Inoculating wires and loops Soiled dressings Glass slides All-glass syringes ANSWER DOWNLOAD EXAMIANS APP
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