A. Bacteria
B. Viruses
C. Spore formers
D. Fungus
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 - Steam under pressure in used in ________ sterilization?
A. Pasteurization
B. Autoclave
C. Kochs sterilizer
D. hot air oven - The best sterilization method for a hand-piece is________________?
A. Ethylene oxide gas
B. dry heat
C. chemical vapour
D. All of the above - 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 - Sterilisation control for moist heat is “or” The efficacy of the moist heat sterilization technique commonly used to sterlilize laboratory ware and culture media is tested by using_______________?
A. using Bacillus stearo thermo philus
B. Using non-pathogenic strain of clostridium tetani
C. Using chemical indicator
D. Using methylene blue - Physical sterilization was discovered by__________________?
A. Robert Koch
B. Joeph Lister
C. John Hunter
D. Alexander flemings - Sterilization is a process in which_________________?
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 - 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