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 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 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents For sterilization of which material gamma rays can be used? Catheters Canulas None of these Plastic syringes Catheters Canulas None of these Plastic syringes 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? None of these Capacity test Minimum inhibitory concentration test Phenol coefficient test None of these Capacity test Minimum inhibitory concentration test Phenol coefficient test 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 none of these autoclaving tyndallization inspissation none of these autoclaving tyndallization ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the thermal death temperature thermal death time decimal reduction time thermal death point thermal death temperature thermal death time decimal reduction time thermal death point 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 1 5 50 10 1 5 50 ANSWER DOWNLOAD EXAMIANS APP
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