Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 11 of 73)

Attempt Fluid Mechanics for Chemical Quiz
In a dry packed bed, the pressure drop will be changed by increasing the flow rate as__________________?
A. V1.8
B. V-0.8
C. V
D. V-1
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Toothpaste is a__________________?
A. Bingham plastic
B. Pseudo-plastic
C. Newtonian liquid
D. Dilatent
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Drag force on the float of a Rotameter is (where Q = flow rate of the)__________________?
A. ∝ q
B. ∝ √q
C. ∝ q2
D. Constant
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A piezometer provided in the pipe measures__________________?
A. Friction factor
B. Static pressure
C. Dynamic pressure
D. None of these
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Which of the following equations is valid for laminar flow of a fluid through packed bed ?
A. Fanning equation
B. Kozeny – karman equation
C. Hagen-posieuille equation
D. Blake-plummer equation
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As per Newton’s law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to (where, μ = fluid viscosity) ?
A. 1/μ
B. Μ
C. Μ2
D. 1/μ2
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Foot valves are provided in the suction line of a centrifugal pump to ____________________?
A. Avoid priming, every time we start the pump
B. Remove the contaminant present in the liquid
C. Minimise the fluctuation in discharge
D. Control the liquid discharge
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What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate ?
A. 0.5
B. 1
C. 1.5
D. 2
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In case of end to end connection of two or more pipes in series, the ______________ each pipe?
A. Same rate of flow passes through
B. Head loss is same through
C. Rate of flow in each pipe is proportional to the length of
D. Total flow rate is the sum of flow rate in
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The energy loss over a length of pipeline according to Darcy-Weisbach equation for pipe flow is _______________ the mean velocity of flow?
A. Directly proportional to
B. Directly proportional to square of
C. Inversely proportional to
D. Inversely proportional to square of
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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