For longitudinal joint in boiler, the type of joint used is:
Option (A)
Lap joint with one ring one slopping the other
Option (B)
Butt joint with single cover plate
Butt joint with double cover plate
Any one of the above
Correct Option:
Question Solution:
The longitudinal joint in a boiler shell is usually butt with two cover plates. This joint is more efficient than lap joint. it is also stiffer and helps to maintain circularity of the shells.