Exercise: Fluid Flow

Questions for: Fluid Flow

The viscosity of a fluid increases with increasing stirrer speed. This fluid would be best described as being
A:
newtonian
B:
pseudoplastic
C:
dilatant
D:
thixotropic
Answer: C
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Which of the following can act as a shear protectorant?
A:
Serum
B:
Silicone oil
C:
Glucose
D:
Glutamic acid
Answer: A
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The viscosity of a fluid increases with the length of time that it is being mixed. This fluid would be best described as being
A:
newtonian
B:
rheopectic
C:
viscoelastic
D:
thixotropic
Answer: B
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A liquid is flowing at 11,400 l.h-1 along a pipeline having a diameter of 4 cm. If the liquid has a density of 1 g.ml-1 and viscosity of 0.001kg.m-1.s-1, then the liquid would be in the
A:
laminar phase
B:
transient phase
C:
turbulent phase
D:
any of the phase
Answer: C
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Which of the following affect the Kolmogorov eddy size?
A:
Stirrer speed
B:
Physical properties of the liquid
C:
Size and type of impeller
D:
All of these
Answer: D
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