A. Kill all pathogenic micro-organisms
B. Kill all non-pathogenic micro-organisms in the environment
C. Deactivate all pathogens not spores
D. Deactivate all spores and dill pathogenic organism
Related Mcqs:
- Cold sterilization refers to the process of sterilization by use of____________________?
A. Ultra violet rays
B. Ultrasonic vibrations
C. Infrared rays
D. Gamma rays - Cold sterilization refers to the process of sterilization by use of______________?
A. Ultra violet rays
B. Ultrasonic vibrations
C. Infrared rays
D. Gamma rays - The best sterilization method for a hand-piece is________________?
A. Ethylene oxide gas
B. dry heat
C. chemical vapour
D. All of the above - The minimum time required for the sterilization of surgical instruments by moist heat at 134°C is__________________?
A. 3 minutes
B. 15 minutes
C. 30 minutes
D. 60 minutes - compared with autoclave, use of a dry heat over for sterilization has the following disadvantages______________?
A. Time-consuming
B. Less effective
C. Causes instruments to rust
D. Causes sharp instruments to dull - The optimal time and temperature required for sterilization in an autoclave is___________________?
A. 140°C x 2 hrs. x 10 lbs pr.
B. 121°F x 15 mts. x 15 lbs pr.
C. 121°F x 15 sec. x 15 lbs pr.
D. 121°C 15 mts. x 15 lbs pr. - One of the following statement about statements about sterilization is not true_______________?
A. Liquid paraffin → Dry heat
B. Glass syringes → Boiling at 169°C for 60 min
C. Flash pasteurization of milk → 72° C for 15 seconds, followed quickly by rapid cooling to 13°C for lower
D. Vaccines → Ethylene oxide - Purpose of Sterilization is to eliminate________________?
A. Bacteria
B. Viruses
C. Spore formers
D. Fungus - The difference between sterilization and disinfection is that_______________?
A. Disinfection kills all spores but sterilization does not
B. Sterilization kills all spores but disinfection does not
C. Sterilization involves chemicals and disinfection involves physical methods
D. Sterilization is easier to achieve - Hot air oven is used for sterilization of all EXCEPT__________________?
A. Glassware
B. Rubber tubes
C. Sharp instrument
D. Liquid paraffin
