安全第 1256 / 1632 题
A guardrail system used for fall protection must have a top rail capable of withstanding a downward/outward force of at least how much, applied within 2 inches of the top edge?
a.50 pounds
b.100 pounds
c.200 pounds
d.150 pounds
解析
1926.502(b)(3) requires the top rail to withstand at least 200 pounds of force. The top edge height must be about 42 inches (±3 inches), with a midrail roughly halfway.
法律依据: 29 CFR 1926.502(b)免费刷完整 1632 道题库 — 无需注册。
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审核人 Abraham Chen — Licensed California General Contractor (CSLB License #1101856 — 核实)