On a multistory steel frame, unfinished bolting or welding is progressing above the uppermost permanently secured floor. What OSHA limit applies?
Correct Answer
B) Four floors or 48 ft, whichever is less
OSHA 1926.754(b)(2) limits unfinished bolting or welding to not more than four floors or 48 ft, whichever is less, above the foundation or uppermost permanently secured floor, except where structural integrity is maintained by design. Other choices confuse different erection-progress limits.
Why This Is the Correct Answer
OSHA 1926.754(b)(2) limits unfinished bolting or welding to not more than four floors or 48 ft, whichever is less, above the foundation or uppermost permanently secured floor, except where structural integrity is maintained by design. Other choices confuse different erection-progress limits.
Why the Other Options Are Wrong
Option A: Two floors or 30 ft, whichever is less
The trap in A is Two floors or 30 ft, whichever is less. That selection is wrong because Two floors or 30 ft, whichever is less is a different published number than the cited Unfinished bolting or welding value; 29 CFR 1926.754(b)(2) supports Four floors or 48 ft, whichever is less; Unfinished bolting or welding is limited.
Option C: Eight floors with no height cap
Choice C (Eight floors with no height cap) is rejected because it points to Eight floors with no height cap, but.
Option D: Six floors or 60 ft, whichever is greater
In metals work, Six floors or 60 ft, whichever is greater is the wrong selection for Unfinished bolting or welding: Six floors or 60 ft, whichever is greater is a different published number than the cited Unfinished bolting or welding value; 29 CFR 1926.754(b)(2) supports Four floors or 48 ft, whichever is less.
Memory Technique
Treat unfinished bolting or welding like a labeled shelf; only the matching condition belongs with Four floors or 48 ft, whichever is less.
Reference Hint
Open 29 CFR Part 1926, Subpart R - Steel Erection; use 29 CFR 1926.754(b)(2) to confirm that OSHA 1926.754(b)(2) limits unfinished bolting or welding to not more than four floors or 48 ft, whichever is less, above the foundation or uppermost permanently secured floor, except where structural integrity is main...
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