Pharmacy Practice MCQ, in this article we will solve, Practice MCQ under subject Microbiology. Read following article for your reference.
Evaluation Of The Efficiency Of Sterilisation Methods » PHARMACAREERS
What is the primary goal of sterilization?
a) To reduce microbial load
b) To completely eliminate all forms of microbial life
c) To disinfect surfaces
d) To clean equipment
Which of the following is a common sterilization method used in hospitals?
a) Ultraviolet radiation
b) Alcohol swabbing
c) Autoclaving
d) Boiling water
Ethylene oxide gas is primarily used for sterilizing:
a) Surgical instruments
b) Laboratory glassware
c) Heat-sensitive medical equipment
d) Food products
What is a biological indicator in sterilization?
a) A chemical that changes color when sterilization is complete
b) A microorganism used to test the effectiveness of sterilization
c) A physical device that records temperature and pressure
d) A visual indicator on packaging
Which factor does NOT affect the efficiency of sterilization?
a) Time of exposure
b) Concentration of sterilizing agent
c) Size of the object being sterilized
d) Temperature during sterilization
Which of the following is a physical method of sterilization?
a) Ethylene oxide gas
b) Gamma irradiation
c) Chlorine dioxide
d) Hydrogen peroxide
What is the purpose of a sterilization indicator tape?
a) To confirm the sterility of the contents
b) To indicate the package has undergone a sterilization process c
) To record the date of sterilization
d) To monitor the humidity level
Which sterilization method uses moist heat under pressure?
a) Dry heat sterilization
b) Autoclaving
c) Chemical sterilization
d) Radiation sterilization
UV radiation is most effective in sterilizing:
a) Deep-set tissues
b) Surfaces and air
c) Bulk materials
d) Liquid media
What is a critical factor for effective sterilization in an autoclave?
a) Proper ventilation
b) Correct placement of items
c) Use of detergents
d) Duration of the cycle
Which sterilization method is commonly used for heat-sensitive liquids and equipment?
a) Steam sterilization
b) Filtration
c) Dry heat sterilization
d) Chemical vapor sterilization
Which of the following is a chemical method of sterilization?
a) Dry heat
b) Radiation
c) Autoclaving
d) Formaldehyde gas
Which sterilization method is often used in the pharmaceutical industry to ensure sterility of injectable products?
a) Boiling
b) Microwave radiation
c) Filtration
d) UV radiation
What is the primary disadvantage of using radiation for sterilization?
a) High cost
b) Limited penetration ability
c) Time-consuming process
d) Chemical residue
Which sterilization method uses a combination of alcohol and aldehydes?
a) Ethylene oxide sterilization
b) Plasma gas sterilization
c) Chemical vapor sterilization
d) Gamma irradiation
Which test organism is typically used as a biological indicator for autoclave sterilization?
a) Bacillus subtilis
b) Staphylococcus aureus
c) Escherichia coli
d) Geobacillus stearothermophilus
How does dry heat sterilization kill microorganisms?
a) By coagulating proteins
b) By oxidizing cellular components
c) By causing DNA damage
d) By disrupting cell membranes
What is the purpose of using a high-efficiency particulate air (HEPA) filter in sterilization?
a) To remove particles from the air
b) To kill airborne pathogens
c) To maintain humidity levels
d) To disinfect surfaces
Which of the following is NOT a factor influencing the effectiveness of a chemical sterilant?
a) Concentration of the chemical
b) Duration of exposure
c) Temperature of the environment
d) Type of packaging used
What is the main advantage of using gas plasma sterilization?
a) Low cost
b) High temperature required
c) No toxic residues
d) Short cycle time
Which of the following is an example of a sporicidal agent?
a) Ethanol
b) Chlorhexidine
c) Hydrogen peroxide
d) Quaternary ammonium compounds
Which sterilization method can be used for temperature-sensitive pharmaceuticals?
a) Dry heat sterilization
b) Autoclaving
c) Gas sterilization
d) Radiation sterilization
What is the main purpose of pre-vacuuming in an autoclave cycle?
a) To dry the load
b) To reduce cycle time
c) To remove air pockets
d) To cool down the equipment
Which of the following is NOT a commonly used chemical sterilant?
a) Peracetic acid
b) Formaldehyde
c) Glutaraldehyde
d) Sodium chloride
What is the advantage of using low-temperature sterilization methods?
a) They are faster
b) They are less expensive
c) They prevent heat damage
d) They require less monitoring
How is the efficiency of ethylene oxide sterilization typically tested?
a) Using chemical indicators
b) With mechanical indicators
c) Using biological indicators
d) By visual inspection
Which sterilization process is the most effective for plastic syringes?
a) Dry heat sterilization
b) Filtration
c) Gas sterilization
d) Microwave radiation
What role does humidity play in sterilization?
a) It speeds up the process
b) It has no effect
c) It aids in the penetration of the sterilant
d) It cools down the equipment
Which of the following is true about autoclave sterilization?
a) It uses dry heat
b) It requires high concentrations of chemicals
c) It is not suitable for liquids
d) It utilizes steam under pressure
Which sterilization method is most suitable for sterilizing antibiotics?
a) Autoclaving
b) Dry heat sterilization
c) Filtration
d) Ethylene oxide sterilization
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