Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 51 of 73)

Attempt Fluid Mechanics for Chemical Quiz
Re/NFr is called the _____________ number?
A. Brinkman
B. Galileo
C. Archimedes
D. Euler
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Centre of pressure in an immersed body is ______________ the centre of gravity?
A. Above
B. Below
C. At
D. Either above or below; depends on the liquid density
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The phenomenon occuring during pumping of a liquid solution containing dissolved gases, which may come out of the solution giving rise to gas pockets, is termed as_______________?
A. Evaporation
B. Cavitation
C. Sublimation
D. Stripping
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Centrifugal pump is normally classified on the basis of the________________?
A. Rpm
B. Type of casing
C. Impeller blade angle
D. Number of blades in impeller
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The specific speed of a pump is defined as the speed of a unit of such a size, that it__________________?
A. Delivers unit discharge at unit head
B. Requires unit power for unit head
C. Delivers unit discharge at unit power
D. None of these
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For ideally incompressible fluid, the Mach number will be __________________?
A. 1.5
B. 1
C. 0
D. 5
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Various efficiencies of a centrifugal pump are related as (where, εm = mechanical efficiency εv = volumetric efficiency. εma = manometric efficiency εo = overall efficiency) ?
A. Ηma × ηm × ηv = ηo
B. Ηm = ηv . ηma
C. Ηma = ηm × ηv
D. Ηv = ηm × ηma
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For flow of fluids through packed bed, the superficial velocity is_________________?
A. Less than the average velocity through channels
B. More than the average velocity through channels
C. Dependent on the pressure drop across the bed
D. Same as the average velocity through channels
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Unsteady uniform flow is represented 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 speed of sound in an ideal gas varies as the __________________?
A. Temperature
B. Pressure
C. Density
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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