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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

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

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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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Process Equipment and Plant Design
Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around

5 and 10
45 and 75
180 and 300
300 and 500

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Process Equipment and Plant Design
Nominal size of a pipe is an indication of its __________ diameter.

None of these
Outer
Inner
Approximate

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Process Equipment and Plant Design
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.

Twice
Eight times
Equal to
Half

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Process Equipment and Plant Design
The force due to wind load acting on a tall vessel depends upon its

Outside diameter
Height
Shape
All of these

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