Batch Sterilization MCQ

Test your knowledge with important Batch Sterilization MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Batch Sterilization MCQs at Bissoy

• The Del factor increases with an increase in the size of the fermenter.
  ক

  True

  খ

  False
• How long does it take for the autoclave to complete its cycle?
  ক

  30-35 minutes

  খ

  50 min to 1 hr

  গ

  15-20 minutes

  ঘ

  10-15 minutes
• The Del Factor decreases as the initial number of organisms _____________
  ক

  Decreases

  খ

  Increases

  গ

  Remains constant

  ঘ

  Becomes zero
• The equation for Del factor is _____________
  ক

  ∇ = ln (N0/Nt)

  খ

  ∇ = ln (Nt/N0)

  গ

  ∇ = ln (N0)

  ঘ

  ∇ = ln (N0Nt)
• What is the advantage of batch sterilization over continuous sterilization?
  ক

  Superior maintenance of medium quality

  খ

  Ease of scale-up

  গ

  Automatic control

  ঘ

  Lower equipment costs
• Which scientists introduced the term ‘Del factor’?
  ক

  Deindoerfer and Humphrey

  খ

  Jacob and Monod

  গ

  Banks and Corbett

  ঘ

  Richards
• The long exposure of batch sterilization may lead to ____________
  ক

  Purification of media

  খ

  Recovery of media

  গ

  Degradation

  ঘ

  Good quality of product
• Which of the following reaction occurs during the sterilization which results in browning of media?
  ক

  Sandmeyer reaction

  খ

  Maillard reaction

  গ

  Cannizzaro reaction

  ঘ

  Gattermann reaction
• If the foreign microorganism invades the fermentation, which of the following is not likely to occur?
  ক

  The medium will not allow the growth of contaminant

  খ

  The contaminant may outgrow the production organism

  গ

  The contaminant may contaminate the final product

  ঘ

  The contaminant may degrade the final product
• The contamination can be avoided by sterilizing the fermenter vessels only.
  ক

  True

  খ

  False
• The destruction of microorganisms by moist heat is described by ______________
  ক

  Zero-order reaction

  খ

  First-order reaction

  গ

  Third-order reaction

  ঘ

  Second-order reaction
• The highest feasible temperature for batch sterilization is ________
  ক

  124°C

  খ

  120°C

  গ

  122°C

  ঘ

  121°C
• Which of the following instrument works on the principle of batch sterilization?
  ক

  Incubator

  খ

  Autoclave

  গ

  Centrifuge

  ঘ

  LAF
• What do you mean by sterilization?
  ক

  Purification of products

  খ

  Recovery of products

  গ

  Elimination of contamination

  ঘ

  Formulation of media
• Which of the following is not a type of sterilization?
  ক

  Batch

  খ

  Continuous

  গ

  Filter

  ঘ

  Submerged