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Process Equipment and Plant Design

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

0.75
0.95
0.55
0.85

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

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Process Equipment and Plant Design
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

Increase by 21.6
Increase by 1.8
Decrease by 22
None of these

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Process Equipment and Plant Design
What is the value of 'q' for saturated liquid feed to a distillation column?

1
>1

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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

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

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Process Equipment and Plant Design
For pipe flows, head is proportional to __________ at constant capacity (where D = pipe diameter ).

D²
1/D⁵
1/D
1/D²

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