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Process Equipment and Plant Design

Process Equipment and Plant Design
The minimum baffle height should be

Twice the tank diameter
3/4 of the tank height
Twice the impeller diameter
Equal to the impeller diameter

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Process Equipment and Plant Design
In actual operation of a bubble cap distillation tower, the __________ at the bottom of the tower is more than that at the top of the tower.

Molal flow rate of vapour
Vapour molecular weight
Pressure and temperature
All of these

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Process Equipment and Plant Design
The LMTD correction factor (FT) is applied in __________ heat exchangers.

All multipass
All of these
1-1 cocurrent
Double pipe

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

Welded
Brazed
Screwed
Flanged

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Process Equipment and Plant Design
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?

Helical type baffle
Disk type baffle
Flat plate extending across the wall
Segmental baffle

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Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

(ph - dh)/ph
(ph - dh . dt/2)/ph
(ph - dh)/dh
(ph - dt)/ph

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