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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 8
26.
Pressure drop in packed bed for turbulent flow is given by the __________ equation.
Kozney-Karman
Blake-Plummer
Leva's
Hagen-Poiseulle's
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
In the complete turbulence zone (in rough pipes), the
rough and smooth pipes have the same friction factor.
laminar film covers the roughness projections.
friction factor depends upon NRe only.
friction factor is independent of the relative roughness.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Which of the following has the minimum compressibility ?
Water at room temperature
Air at room temperature
Oxygen at room temperature
Nitrogen at room temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
In case of centrifugal fan or blower, the gas capacity varies as
speed
(speed)2
(speed)3
(speed)0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Pick out the wrong statement.
A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocity.
Newton's law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution.
Laminar flow of viscous liquids is involved in the lubrication of various types of bearings.
Rise of water in capillary tubes reduces with the increasing diameter of capillary tubes.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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