compared with autoclave, use of a dry heat over for sterilization has the following disadvantages______________?

Related Mcqs:

1. 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.

2. Cold sterilization refers to the process of sterilization by use of____________________?

   A. Ultra violet rays
   B. Ultrasonic vibrations
   C. Infrared rays
   D. Gamma rays

3. Cold sterilization refers to the process of sterilization by use of______________?

   A. Ultra violet rays
   B. Ultrasonic vibrations
   C. Infrared rays
   D. Gamma rays

4. 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

5. 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

6. 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

7. Steam under pressure in used in ________ sterilization?

   A. Pasteurization
   B. Autoclave
   C. Kochs sterilizer
   D. hot air oven

8. The best sterilization method for a hand-piece is________________?

   A. Ethylene oxide gas
   B. dry heat
   C. chemical vapour
   D. All of the above

9. Physical sterilization was discovered by__________________?

   A. Robert Koch
   B. Joeph Lister
   C. John Hunter
   D. Alexander flemings

10. 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