Not quite. The answer is C: 40 feet.
The limit is four floors or 48 feet, whichever is less. Four floors are 4 by 10 feet equals 40 feet, which is less than 48 feet, so 40 feet governs. Using 48 feet ignores whichever is less. The 30 feet figure is the planked floor or net distance under erection work. The 80 feet figure comes from the eight-story rule (8 by 10 feet), which governs a different gap.
0 of 1 right so far.
Question 2 of 10.
A steel joist at a column spans 55 feet. Under 29 CFR 1926.757(a)(3), how must it be designed?
A: So one employee can release the hoisting cable without erection bridging installed
B: So the hoisting cable stays attached until all bridging is installed and anchored
C: So it is set in tandem with all bridging installed before cable release
D: So one row of bolted diagonal bridging is installed before cable release
NEXT: A · B · C · D
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