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Process Equipment and Plant Design

Process Equipment and Plant Design
For high pressure process equipments/vessels, the connected nozzle should be

Welded
Brazed
Flanged
Screwed

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Process Equipment and Plant Design
Longitundinal stress induced in a thin walled cylindrical storage vessel is

PD/2t
PD/6t
PD/4t
PD/3t

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Process Equipment and Plant Design
In packed towers provided with saddle packing, liquid redistributors are positioned at every __________ times column diameter or 6 metres whichever is less.

43864
20-25
44119
43959

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Process Equipment and Plant Design
Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always

More than geometric mean value
Less than arithmetic mean value
Both B & C
More than arithmetic mean value

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Process Equipment and Plant Design
An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by

Decrease in gas solubility for absorbers
All of these
An increase in liquid viscosity
An increase in relatived volatility for rectification columns

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Process Equipment and Plant Design
The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is

pd/2t
pd/t
pd/4t
pd/8t

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