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Process Equipment and Plant Design

Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

0.4-0.9
0.1-0.2
0.2-0.5
1.2-1.5

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Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

2.5 times
One-fourth of
1.25-1.50 times
Less than

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Process Equipment and Plant Design
Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around

25 and 60
3 and 5
100 and 250
250 and 600

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Process Equipment and Plant Design
Stage efficiency for packed tower varies with the

Operating pressure and column diameter
All of these
Type & size of packing
Fluid rates and fluid properties

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Process Equipment and Plant Design
Maximum acceptable total liquid gradient over a tray is about __________ mm.

5.5
45.5
12.5
30.5

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Process Equipment and Plant Design
__________ tower is the most suitable gas-liquid contacting device involving highly corrosive fluids.

Sieve plate
Packed
Bubble cap plate
None of these

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