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Process Equipment and Plant Design

Process Equipment and Plant Design
Friction factor for turbulent flow in a new pipe is given by

f = 0.04/NRe0.16
f = 25/NRe
f = 0.22 NRe0.05
f = 16/NRe

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the baffles on shell side is primarily provided for

Fixing the tubes
Creating turbulence
Reducing scale deposition
Increasing pressure drop

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Process Equipment and Plant Design
Scale up problem in design based on the similarity concept takes into account __________ similarity.

Dynamic
Geometrical
All of these
Kinematic

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Process Equipment and Plant Design
for couplings and unions would be

60
Negligible
350
200

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Process Equipment and Plant Design
Which of the following is used to set the diameter of the distillation column?

Static submergence
Allowable vapour velocity
Number of theorectical plates
Length of straight rectangular weir on cross-flow tray

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Process Equipment and Plant Design
A cylindrical storage tank can have a self supported conical roof,

If its diameter is less than 15-20metres
If the thickness of the roof is more than that of the cylindrical shell
Irrespective of its diameter
If its diameter is more than 50 meters

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