Process Equipment and Plant Design
Wind load consideration in the design of a support can be neglected, when the vessel is

None of these
Tall but empty
Tall (say 30 metres), but is full of liquid
Short (< 2 m) and housed indoor

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Process Equipment and Plant Design
Triangular pitch tube layout as compared to square pitch in a shell and tube heat exchanger

Facilitates comparatively easier external cleaning because of large clearance
Both B and C
Permits the use of more tubes in a given shell diameter
Permits the use of less tubes in a given shell diameter

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Process Equipment and Plant Design
Generally, elliptical dished heads

Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D
Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m²
Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter
All of these

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