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Process Equipment and Plant Design

Process Equipment and Plant Design
Poisson's ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson's ratio for structural and pressure vessel steel may be taken as

0.3
0.95
0.75
0.01

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Process Equipment and Plant Design
__________ heat exchanger is also known as 'hair pin type' exchanger,

Finned
Regenerative
Double pipe
Plate type

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Process Equipment and Plant Design
Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation

Both B & C
Does not affect the capacity
Increases capacity
Increases economy

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Process Equipment and Plant Design
In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

17.5
12.5
5
2.5

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Process Equipment and Plant Design
In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around

1.5
3.5
0.5
2.5

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Process Equipment and Plant Design
Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

Containing suspended solids flows at high velocity
Is highly viscous
Containing suspended solids flows at low velocity
Is of high specific gravity

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