Effect of Maintenance on Yields MCQ

Test your knowledge with important Effect of Maintenance on Yields MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Effect of Maintenance on Yields MCQs at Bissoy

• A homogenous material is defined as being ____________
  ক

  An element

  খ

  Any material with uniform composition

  গ

  Synonymous with “solution”

  ঘ

  Any material with non-uniform composition
• There is always a limiting reactant.
  ক

  True

  খ

  False
• Reactant which controls amount of products is _________
  ক

  Deficient reactant

  খ

  Non- Deficient reactant

  গ

  Limiting reactant

  ঘ

  Excess reactant
• The total mass and number of atom of each element these two quantities is constant during any Chemical and Biochemical reactions.
  ক

  True

  খ

  False
• “Ypx” is defined as mass or mole of product produced per unit mass or mole of substrate consumed.
  ক

  True

  খ

  False
• What is the unit of Maintenance coefficient “m”?
  ক

  kg substrate (kg biomass) S-1

  খ

  kg substrate (kg biomass) S

  গ

  kg substrate (kg biomass)-1 S-1

  ঘ

  kg substrate (kg biomass)-1 S
• Steady state condition is maintained in ____________
  ক

  Continuous process

  খ

  Batch process

  গ

  Fed- batch process

  ঘ

  Semi-batch process
• Refer to Q1 and Q2, and determine the value of the maintenance coefficient (g substrate/g DCW-h).
  ক

  0.099 g substrate/g DCW-h

  খ

  0.089 g substrate/g DCW-h

  গ

  0.079 g substrate/g DCW-h

  ঘ

  0.069 g substrate/g DCW-h
• Consider the growth of a microorganism in batch culture. When the substrate concentration is high, the cell density doubles every 0.75 h, the observed substrate yield coefficient is 0.3 g DCW/g, and substrate consumption is allocated towards biosynthesis (60%), maintenance (10%), as well as product formation (30%). The product formation is strictly growth-associated. The batch reactor is inoculated with 0.01 g DCW/L and 10 g/L substrate. Estimate the maximum cell density (after lag phase).
  ক

  1.21 g DCW / l

  খ

  1.41 g DCW / l

  গ

  1.61 g DCW / l

  ঘ

  1.81 g DCW / l