Process Equipment and Plant Design
Lug support is

The most suitable for thick vertical vessel
Same as bracket support
All of these
Provided usually for vessels of much smaller height than skirt supported vessels

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Process Equipment and Plant Design
Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

Sensible heat changes for vapour & liquid are negligibly small
Reflux is not a saturated liquid
Molar latent heat of the two components are equal
Heat of mixing of normal liquid is assumed to be zero

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