Process Equipment & Plant Design Mcqs for Chemical

Q.  For a cylindrical vessel of moderate height, the weld joint efficiency for joints parallel to the cylindrical axis is given as 1.0; while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylindrical vessel, what value of weld joint efficiency should be used ?

a. 0.8
b. 0.9
c. 1.0
d. (0.8)0.5


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