Pharmacy Practice MCQ » PHARMACAREERS

Pharmacy Practice MCQ, in this article we will solve, Practice MCQ under subject Microbiology. Read following article for your reference.

Principle, Procedure, Merits, Demerits And Applications Of Physical Methods Of Sterilization » PHARMACAREERS

What is the primary principle behind heat sterilization?
- A) Oxidation
- B) Denaturation of proteins
- C) Coagulation of lipids
- D) Disruption of nucleic acids
Which method uses steam under pressure for sterilization?
- A) Dry heat sterilization
- B) Filtration
- C) Moist heat sterilization
- D) Radiation
At what temperature and pressure is autoclaving typically performed?
- A) 121°C, 15 psi
- B) 100°C, 10 psi
- C) 134°C, 20 psi
- D) 150°C, 25 psi
Which of the following is a merit of moist heat sterilization?
- A) Suitable for heat-sensitive materials
- B) Rapid and reliable
- C) Causes degradation of materials
- D) Requires high temperatures
What is a common application of dry heat sterilization?
- A) Sterilizing surgical instruments
- B) Sterilizing culture media
- C) Sterilizing glassware
- D) Sterilizing food products
Which physical method of sterilization involves the use of a hot air oven?
- A) Moist heat sterilization
- B) Dry heat sterilization
- C) Filtration
- D) Radiation
What is the principle behind filtration sterilization?
- A) Denaturation of proteins
- B) Physical removal of microorganisms
- C) Oxidation of cell components
- D) Coagulation of proteins
Which type of radiation is used in ionizing radiation sterilization?
- A) Ultraviolet light
- B) Gamma rays
- C) Infrared light
- D) Visible light
What is a demerit of using radiation for sterilization?
- A) High cost
- B) Slow process
- C) Ineffective against spores
- D) Requires high temperatures
Which method is commonly used for sterilizing heat-sensitive materials?
- A) Dry heat sterilization
- B) Moist heat sterilization
- C) Filtration
- D) Radiation
What is the main disadvantage of dry heat sterilization?
- A) Requires high temperatures and longer exposure times
- B) Not effective against spores
- C) Causes material degradation
- D) Limited to specific applications
Which sterilization method is used in the food industry for canning and pasteurization?
- A) Dry heat sterilization
- B) Moist heat sterilization
- C) Filtration
- D) Radiation
What is the typical temperature range for dry heat sterilization?
- A) 100-120°C
- B) 121-134°C
- C) 160-180°C
- D) 200-220°C
Which method involves the use of steam at 121°C for 15 minutes?
- A) Dry heat sterilization
- B) Filtration
- C) Autoclaving
- D) Radiation
What is a common application of filtration sterilization?
- A) Sterilizing surgical instruments
- B) Sterilizing culture media
- C) Sterilizing heat-sensitive solutions
- D) Sterilizing food products
Which type of radiation is used in non-ionizing radiation sterilization?
- A) Gamma rays
- B) X-rays
- C) Ultraviolet light
- D) Beta particles
What is the principle behind radiation sterilization?
- A) Denaturation of proteins
- B) Physical removal of microorganisms
- C) Oxidation of cell components
- D) Disruption of DNA
Which method is not suitable for sterilizing heat-sensitive materials?
- A) Dry heat sterilization
- B) Moist heat sterilization
- C) Filtration
- D) Radiation
What is a merit of using ionizing radiation for sterilization?
- A) Low cost
- B) Effective against all microorganisms
- C) Suitable for heat-sensitive materials
- D) Requires high temperatures
Which method is used for sterilizing ophthalmic preparations?
- A) Dry heat sterilization
- B) Moist heat sterilization
- C) Filtration
- D) Radiation
What is the main disadvantage of using filtration for sterilization?
- A) High cost
- B) Slow process
- C) Ineffective against viruses
- D) Limited to specific applications
Which method involves the use of a hot air oven at 160-180°C for 1-2 hours?
- A) Moist heat sterilization
- B) Dry heat sterilization
- C) Filtration
- D) Radiation
What is a common application of radiation sterilization?
- A) Sterilizing surgical instruments
- B) Sterilizing culture media
- C) Sterilizing heat-sensitive solutions
- D) Sterilizing food products
Which method is used for sterilizing laboratory equipment?
- A) Dry heat sterilization
- B) Moist heat sterilization
- C) Filtration
- D) Radiation
What is the principle behind moist heat sterilization?
- A) Denaturation of proteins
- B) Physical removal of microorganisms
- C) Oxidation of cell components
- D) Coagulation of proteins
Which method is commonly used for sterilizing surgical instruments?
- A) Dry heat sterilization
- B) Moist heat sterilization
- C) Filtration
- D) Radiation
What is a demerit of using dry heat sterilization?
- A) High cost
- B) Slow process
- C) Ineffective against spores
- D) Requires high temperatures and longer exposure times
Which method is used for sterilizing culture media?
- A) Dry heat sterilization
- B) Moist heat sterilization
- C) Filtration
- D) Radiation
What is the principle behind dry heat sterilization?
- A) Denaturation of proteins
- B) Physical removal of microorganisms
- C) Oxidation of cell components
- D) Coagulation of proteins
Which method is used for sterilizing food products?
- A) Dry heat sterilization
- B) Moist heat sterilization
- C) Filtration
- D) Radiation

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