The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for
A. Reducing stress concentration
B. Ease of manufacture
C. Safety
D. Fullering and caulking
Answer: Option D
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Both caulking and fullering are use in rivetting to ensure tight contact between parts(i.e. leak proof)..
However, fullering is preferred more as it provides clean finish and less risk of damaging the plate..