How much outward or downward force must a construction guardrail top rail generally withstand?
Correct Answer
B) At least 200 lb
OSHA fall-protection criteria require top rails to withstand at least 200 lb applied outward or downward.
Why This Is the Correct Answer
OSHA fall-protection criteria require top rails to withstand at least 200 lb applied outward or downward.
Why the Other Options Are Wrong
Option A: At least 50 lb
Choice A (At least 50 lb) is rejected because At least 50 lb is the wrong OSHA fall-protection number for the item asked.
Option C: At least 100 lb
The trap in C is At least 100 lb. That selection is wrong because At least 100 lb is the wrong OSHA fall-protection number for the item asked.
Option D: Only the weight of the rail
Choice D gives Only the weight of the rail. Its specific error: it leaves the work at an informal or incomplete stage, while Guardrail top rail force - much outward downward force construction requires At least 200 lb. The accepted answer is At least 200 lb.
Memory Technique
Make guardrail top rail force - much outward downward force construction a tabbed card: cite the exact condition, then choose At least 200 lb.
Reference Hint
Open 29 CFR Part 1926 (OSHA Construction Standards), 1926-2023 / PSI OSHA Excerpts 2025; use 29 CFR 1926 Subpart M - §1926.502(b) to confirm that OSHA fall-protection criteria require top rails to withstand at least 200 lb applied outward or downward.
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