Discussion
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- Question
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
- Correct Answer
- creating a hypertonic environment
- 1. Which of the following substances can sterilize?
Options- A. Alcohol
- B. Cetylpyridinium chloride
- C. Ethylene oxide
- D. Chlorine Discuss
- 2. 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
- 3. 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
- 4. 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
- 5. 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
- 6. Which of the following has most heat resistant spores?
Options- A. Clostridium histolyticum
- B. Clostridium perfringens
- C. Bacillus stearothermophilus
- D. Bacillus cereus Discuss
- 7. 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
- 8. 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
- 9. Microbes can be removed from a liquid solution by the process of
Options- A. filtration
- B. freeze-drying
- C. osmosis
- D. desiccation Discuss
- 10. The time in minutes at a specific temperature needed to kill a population of cells is the
Options- A. decimal reduction time
- B. thermal death point
- C. thermal death temperature
- D. F value Discuss
Physical and Chemical Agents problems
Search Results
Correct Answer: Ethylene oxide
Correct Answer: Destruction of contaminated materials
Correct Answer: Hepatitis B virus
Correct Answer: all of the above
Correct Answer: All of these
Correct Answer: Bacillus stearothermophilus
Correct Answer: D value
Correct Answer: Glass pipettes
Correct Answer: filtration
Correct Answer: F value
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