Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 63 of 73)

Attempt Fluid Mechanics for Chemical Quiz
Reynolds number is the ratio of____________________?
A. Viscous forces to gravity forces
B. Inertial forces to viscous forces
C. Viscous forces to inertial forces
D. Inertial forces to gravity forces
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Friction produced by the formation of wakes is called the ______________ friction?
A. Disk
B. Skin
C. Form
D. None of these
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Slugging in a fluidised bed can be avoided by using_____________________?
A. Tall narrow vessel
B. Deep bed of solids
C. Shallow beds of solids and proper choice of particle size
D. Very large particles
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Fluid flow in a/an ______________ is an example of pressure flow?
A. Partially filled pipeline
B. Pipe
C. Open channel
D. River
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Boundary layer separation is characterised by one of the conditions given below, where ‘Re’ is the Reynolds number for the flow. Select the appropriate conditions ?
A. Re <> 1, accelerating flow
C. Re << 1, decelerating flow
D. Re >>1, decelerating flow
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In the Newton’s law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is ______________ the fluid viscosity?
A. Directly proportional to
B. Inversely proportional to
C. Inversely proportional to the square root of
D. Independent of
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The capacity of an accumulator is the maximum_________________?
A. Energy which it can store
B. Discharge which it can deliver
C. Liquid which it can store
D. None of these
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For the manometer set up shown in the figure, the pressure difference PA – PB is given by_________________?
A. (ρh – ρair)gh
B. (ρh – ρl)gh
C. (ρh – ρl) gh + (ρl – ρair) . g(l – h)
D. (ρh – ρl) gl + (ρl – ρair)gh
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In case of a Rotameter, the density of the float material is _____________ that of the liquid it replaces?
A. More than
B. Less than
C. Equal to
D. Either a. or b.
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For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the wall of the pipe and the friction velocity ‘v’, and it follows a _____________ relationship?
A. Logarithmic
B. Linear
C. Hyperbolic
D. Parabolic
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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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