As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the _____________ joint ?
Correct answer: B. Lap
- A. Butt
- B. Lap
- C. Welded
- D. None of these
Explanation
For traditional riveted boiler construction, circumferential seams are preferably made as lap joints because they carry the longitudinal shell stress. Butt joints are more commonly associated with longitudinal seams and welded construction.
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