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Process Equipment and Plant Design

Process Equipment and Plant Design
In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed __________ of the column diameter.

l/5th
l/30th
l/15th
l/50th

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Process Equipment and Plant Design
In a __________ rivetted joint, the number of rivets decreases from the innermost row to the outermost row.

Diamond
None of these
Chain
Zig-zag

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Process Equipment and Plant Design
Thin spherical shells subjected to internal pressure, develop __________ stresses.

Circumferential
Radial
Both A & B
Neither A nor B

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Process Equipment and Plant Design
Which of the following packing materials provides for maximum mass transfer?

Lessig rings
All of these
Raschig rings
Cross-partition rings

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

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

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Process Equipment and Plant Design
Welded joint efficiency in the design of chemical process equipment is taken as

0.95
0.75
0.85
0.55

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