A. Time-consuming
B. Less effective
C. Causes instruments to rust
D. Causes sharp instruments to dull
Related Mcqs:
- 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. - 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 - 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 - 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 - 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 - 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 - 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
