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Biochemical Engineering - Fluid Flow

Exercise : Fluid Flow - Section 1
  • Fluid Flow - Section 1
31.
A Newtonian fluid is one in which the viscosity
is constant regardless of the stirrer speed or mixing time
changes during mixing but returns to its original state after mixing
increases with increasing stirrer speed
decreases with increasing stirrer speed
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Which pattern of mixing is preferred in stirred tank reactors during the culture of aerobic microorganisms?
Laminar flow
Transient flow
turbulent flow
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Animal cell cultures do not have much effect on shear forces because
the cell size is generally smaller than the critical eddy size at which shear will have an effect
cells are larger than the critical eddy size at which shear will have an effect
animal cells have cell walls
animal cells have cell membranes
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
The viscosity of the culture fluid is classified as both pseudoplastic and thixotropic which indicates that the viscosity
increases with stirring speed but decreases with mixing time
increases with stirring speed and increases with mixing time
decreases with stirring speed but increases with mixing time
decreases with stirring speed and decreases with mixing time
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Pluronic F68 is added to cell culture media as
a nutrient
a shear protectorant
to increase oxygen transfer rates
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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