Chemical Engineering MCQs

6108 MCQs  (Page 403 of 611)

Attempt Chemical Engineering Quiz
The continuity equation__________________?
A. Relates mass flow rate along a stream tube
B. Relates work and energy
C. Stipulates that newton’s second law of motion must be satisfied at every point in the fluid
D. None of these
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The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its__________________?
A. Viscosity
B. Specific volume
C. Velocity
D. None of these
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In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is__________________?
A. 0
B. 1
C. < 1
D. > 1
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Gradually varied flow in open channel is a/an ____________ flow?
A. Steady uniform
B. Steady non-uniform
C. Unsteady uniform
D. Unsteady non-uniform
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Stoke’s law is valid, when NRe, p is less than_________________?
A. 2
B. 100
C. 2100
D. 700
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Cavitation in a centrifugal pump can be avoided by keeping the__________________?
A. Inlet pressure high
B. Outlet pressure low
C. Inlet pressure low
D. Outlet pressure high
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Momentum transfer in laminar flow of fluids results due to the_________________?
A. Viscosity
B. Density
C. Velocity gradient
D. None of these
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What is the ratio of fluid carrying capacity of two pipes having diameters d1 and d2 respectively ?
A. (d1/d2)0.8
B. (d1/d2)0.5
C. D1/d2
D. (d1/d2)2
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Mach number is important in a fluid flow problem, when the inertia and _____________ forces predominate?
A. Elastic
B. Viscous
C. Gravity
D. None of these
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Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) ?
A. √d
B. D2/3
C. D4/5
D. D1/3
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Word of the Day
26 Jul
Simultaneously
at the same time.
ایک ہی وقت میں، ایک ساتھ، بیک وقت

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