Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 4 of 73)

Attempt Fluid Mechanics for Chemical Quiz
Which is the most efficient and best for measuring very small flow rate of gases ?
A. Venturimeter
B. Orificemeter
C. Rotameter
D. Flow nozzle
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For laminar flow of a fluid through a packed bed of spheres of diameter d, the pressure drop per unit length of bed depends upon the sphere diameter as_________________?
A. D
B. D2
C. D4
D. D̅ 2
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For laminar flow of Newtonian fluid in a circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the centre line of the pipe, and it follows a ______________ relationship?
A. Logarithmic
B. Parabolic
C. Hyperbolic
D. Linear
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What is the shear rate at the pipe wall, in case of laminar flow of Newtonian fluids in a pipe of diameter ‘D’ & length ‘L’ incurring a pressure drop ‘Δp’ with average velocity ‘Vavg’ ?
A. D δp/8l
B. D δp/4l
C. 8 vavg/d
D. 4 vavg/d
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For turbulent flow of Newtonian fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is ________________?
A. 0.5
B. 1
C. 0.66
D. < 0.5
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In Newton’s law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is___________________?
A. 0.44
B. 0.044
C. 4.4
D. 44
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In parallel pipe problems, the__________________?
A. Head loss is the same through each pipe
B. Discharge is the same through all the pipes
C. Total head loss is equal to the sum of the head losses through each pipe
D. None of these
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A tube is specified by its____________________?
A. Thickness only
B. Outer diameter only
C. Thickness & outer diameter both
D. Inner diameter
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Poise is converted into stoke by ___________________?
A. Multiplying with density (gm/c.c)
B. Dividing by density (gm/c.c)
C. Multiplying with specific gravity
D. Dividing by specific gravity
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Slurries can be most conveniently pumped by a _______________ pump?
A. Screw
B. Reciprocating
C. Gear
D. Centrifugal
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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