Chemical Engineering - Fluid Mechanics
Exercise "Nothing is impossible to a willing heart."
- (Proverb)
1.
The ratio of the wall drag to the form drag in the Stoke's law range (for motion of spherical particles in a stationary fluid) is
Answer: C
Explanation:
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2.
For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance 'd' measured from the wall of the pipe and the friction velocity 'v', and it follows a __________ relationship.
A. logarithmic B. linear C. hyperbolic D. parabolic
Answer: E
Explanation:
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3.
Maintenance cost of a __________ pump for a particular duty is the least.
A. centrifugal B. reciprocating C. volute D. gear
Answer: D
Explanation:
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4.
Choking in case of pipe flow means that a
A. specified mass flow rate can not be achieved. B. valve is closed in the line. C. restriction in flow cross-section area occurs. D. none of these.
Answer: C
Explanation:
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5.
Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.
A. thermal conductivity B. electrical conductivity C. specific gravity D. electrical resistivity
Answer: D
Explanation:
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