Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 28 of 73)

Attempt Fluid Mechanics for Chemical Quiz
Power number is the ratio of____________________?
A. Drag stress to inertial stress
B. Inertial stress to drag stress
C. Inertial stress to gravitational stress
D. Gravitational stress to drag stress
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A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the power consumed now will be _____________ hp?
A. 0.5
B. 2
C. 4
D. 1
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A Newtonian fluid is that__________________?
A. Which follows newton’s law of motion
B. Which needs a minimum shear, before it starts deforming
C. For which shear & deformation are related as t = μ (∂u/∂y)
D. None of these
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Bernoulli’s equation accounts for the_____________________?
A. Various momentums
B. Various masses
C. Different forms of mechanical energy
D. None of these
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The line of action of the buoyant force acts through the____________________?
A. Centroid of the displaced volume of fluid
B. Centre of gravity of a submerged body
C. Centroid of the volume of any floating body
D. None of these
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Pressure drop in a packed bed for laminar flow is given by the ______________ equation?
A. Kozeny-carman
B. Blake-plummer
C. Leva’s
D. Fanning friction factor
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For an incompressible fluid, the bulk modulus of elasticity is____________________?
A. 5 kg/m3
B. ∞ n/m2
C. 1 n
D. 0 n/m
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Steady non-uniform flow is exemplified by flow through a/an___________________?
A. Long pipe at constant rate
B. Long pipe at decreasing rate
C. Expanding tube at increasing rate
D. Expanding tube at constant rate
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The frictional resistance in laminar flow does not depend on the_________________?
A. Area of surface in contact
B. Flow velocity
C. Fluid temperature
D. Pressure of flow
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The momentum correction factor for the velocity distribution of laminar flow is____________________?
A. 1.3
B. 1.66
C. 2.5
D. None of these
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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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