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Process Equipment and Plant Design

Process Equipment and Plant Design
__________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).

Hemispherical
Ellipsoidal
Conical
Dished

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Process Equipment and Plant Design
In perforated plate towers, the

Pressure drop is less compared is similar bubble cap towers
Total hole area may be around 6 to 15% of tower cross-sectional area
Hole sizes may be around 1/8" or 3/16"
All of these

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Process Equipment and Plant Design
Tube height in a calendria type evaporator is normally less than __________ metres.

1
2
5.5
3.5

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Process Equipment and Plant Design
With increase in temperature drop (in a shell and tube heat exchanger), the LMTD correction factor, FT

Increases linearly
Remains constant
Increases very rapidly
Decreases very rapidly

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Process Equipment and Plant Design
If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of

None of these
D/5 or minimum 2" to 5D
D/2 or minimum 2" to 5D
D/5 or minimum 2" to D

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Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

2.5 d
1.5 d
D
0.5 d

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