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Process Equipment and Plant Design

Process Equipment and Plant Design
In shell and tube heat exchangers, straight tie rods are used to

None of these
Hold baffle in space
Account for thermal strain
Fix the tubes in position

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Process Equipment and Plant Design
For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times.

About 9
Considerably more than 9
Considerably less than 9
About 3

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Process Equipment and Plant Design
In a thin cylindrical shell, the hoop stress is __________ stress.

Radial
Circumferential tensile
Longitudinal
Compressive

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Process Equipment and Plant Design
The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is

pd/t
pd/4t
pd/3t
pd/2t

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Process Equipment and Plant Design
Equivalent diameter for heat transfer calculation for a duct of square cross-section having each side as 'd' will be

√(2πd)
√(2d)
D
√d

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Process Equipment and Plant Design
What is the slope of the operating line in the rectifying section of a distillation coloumn?

> 1
∞

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