logo

CuriousTab

CuriousTab

Discussion


Home Microbiology Physical and Chemical Agents Comments

  • Question
  • Which of the following substances can sterilize?


  • Options
  • A. Alcohol
  • B. Cetylpyridinium chloride
  • C. Ethylene oxide
  • D. Chlorine

  • Correct Answer
  • Ethylene oxide 


  • Physical and Chemical Agents problems


    Search Results


    • 1. Which of the following process can be efficiently carried out by incineration?

    • Options
    • A. Sterilization of scalpel blades and needles
    • B. Sterilization of all glass syringes
    • C. Sterilization of points of forceps
    • D. Destruction of contaminated materials
    • Discuss
    • 2. Which of the following hepatitis viruses is not RNA virus?

    • Options
    • A. Hepatitis A virus
    • B. Hepatitis B virus
    • C. Hepatitis E virus
    • D. Hepatitis G virus
    • Discuss
    • 3. The development of hepatocellular carcinoma is associated with

    • Options
    • A. ground squirrel hepatitis virus
    • B. hepatitis B virus
    • C. woodchuck hepatitis virus
    • D. all of the above
    • Discuss
    • 4. Which of the following specimens contain/s hepatitis B virus in an infected person?

    • Options
    • A. Blood
    • B. Semen
    • C. Saliva
    • D. All of these
    • Discuss
    • 5. Which of the following is not correct for hepatitis A virus?

    • Options
    • A. It can be grown in cell cultures of primate and human cells
    • B. It is one of the most stable viruses infecting humans
    • C. It may cause hepatocellular carcinoma
    • D. None of the above
    • Discuss
    • 6. Preservation of foods by using salts and sugars works by

    • Options
    • A. raising pH
    • B. lowering osmotic pressure
    • C. creating a hypertonic environment
    • D. creating a hypotonic environment
    • Discuss
    • 7. Which of the following has most heat resistant spores?

    • Options
    • A. Clostridium histolyticum
    • B. Clostridium perfringens
    • C. Bacillus stearothermophilus
    • D. Bacillus cereus
    • Discuss
    • 8. The time required to kill 90% of the microorganisms in a sample at a specific temperature is the

    • Options
    • A. decimal reduction time
    • B. thermal death point
    • C. F value
    • D. D value
    • Discuss
    • 9. Which of the following items could be sterilized by dry heat sterilization?

    • Options
    • A. Intravenous (IV) solution
    • B. Plastic IV bags
    • C. Glass pipettes
    • D. rubber gloves
    • Discuss
    • 10. Microbes can be removed from a liquid solution by the process of

    • Options
    • A. filtration
    • B. freeze-drying
    • C. osmosis
    • D. desiccation
    • Discuss


    Comments

    There are no comments.

Enter a new Comment