A temporary stairway has four risers and an open side. Which trigger requires handrail and stairrail protection?
Correct Answer
D) Four or more risers or rising more than 30 in., whichever is less
Stairways with four or more risers or rising more than 30 in., whichever is less, must have the required handrail and stairrail protection. Other choices add thresholds that are not the OSHA construction trigger.
Why This Is the Correct Answer
Stairways with four or more risers or rising more than 30 in., whichever is less, must have the required handrail and stairrail protection. Other choices add thresholds that are not the OSHA construction trigger.
Why the Other Options Are Wrong
Option A: Base the temporary stair handrails response on stairs with ten or more risers
Choice A (Only stairs with ten or more risers) is rejected because it leaves the work at an informal or incomplete stage, while Temporary stair handrails requires F.
Option B: Base the temporary stair handrails response on stairs serving the public only
In general project requirements, Only stairs serving the public is the wrong selection for Temporary stair handrails: the option delays or omits the controlling step.
Option C: Limit temporary stair handrails to stairs wider than 44 in.
The trap in C is Only stairs wider than 44 in. That selection is wrong because Only stairs wider than 44 in. is a different published number than the cited Temporary stair handrails value; 29 CFR 1926.1052(c)(1) supports F.
Memory Technique
Make temporary stair handrails a tabbed card: cite the exact condition, then choose Four or more risers or rising more than 30 in., whichever is less.
Reference Hint
Open 29 CFR 1926 OSHA Construction Standards; use 29 CFR 1926.1052(c)(1) to confirm that Stairways with four or more risers or rising more than 30 in., whichever is less, must have the required handrail and stairrail protection.
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