Chemical Engineering MCQs

6108 MCQs  (Page 431 of 611)

Attempt Chemical Engineering Quiz
The friction factor is___________________?
A. Always inversely proportional to the reynolds number
B. Not dimensionless
C. Not dependent on the roughness of the pipe
D. None of these
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What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition ?
A. 0.5
B. 0.67
C. 1
D. 2
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Turbine impeller____________________?
A. Produces only radial current
B. Produces only tangential current
C. Is effective over wide range of viscosities
D. Does not produce tangential current
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One dimensional fluid flow implies the ________________________?
A. Flow in straight lines only
B. Uniform flow
C. Steady uniform flow
D. Flow in which transverse components are zero
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For laminar flow through a closed conduit____________________?
A. Vmax = 2vav
B. Vmax = vav
C. Vmax = 1.5vav
D. Vmax = 0.5vav
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Each term in Bernoulli‟s equation represents the _____________ of the fluid?
A. Energy per unit mass
B. Energy per unit weight
C. Force per unit mass
D. None of these
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For liquid flow through a packed bed, the superficial velocity as compared to average velocity through the channel in the bed is________________?
A. More
B. Less
C. Equal
D. Independent of porosity
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The equivalent diameter for pressure drop calculation for a fluid flowing through a rectangular cross-section channels having sides ‘x’ & ‘y’ is given by_________________?
A. 2xy/(x + y)
B. Xy/(x + y)
C. (x + y)/2xy
D. (x + y)/xy
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The nominal size of a hose pipe is specified by its _________________?
A. I.d.
B. O.d.
C. Thickness
D. None of these
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An equipotential line is _____________ to the velocity vector at every point?
A. Normal
B. Parallel
C. Tangential
D. None of these
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
2021:00:00

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