A warning line must cover a 180-foot roof edge with stanchions every 30 feet, including both ends. How many stanchions are needed?
Correct Answer
A) 7 stanchions.
One hundred eighty feet divided by 30 feet gives 6 spaces; including both ends requires 7 stanchions.
Why This Is the Correct Answer
One hundred eighty feet divided by 30 feet gives 6 spaces; including both ends requires 7 stanchions.
Why the Other Options Are Wrong
Option B: 6 stanchions total.
6 stanchions total. is below the supported result for fall protection layout calculation; it likely drops a required step.
Option C: 8 stanchions total.
8 stanchions total. is above the supported result for fall protection layout calculation; it likely adds a step the rule does not support.
Option D: 9 stanchions total.
9 stanchions total. is above the supported result for fall protection layout calculation; it likely adds a step the rule does not support.
Memory Technique
Fall Protection Layout lock for Laying Out: feet is the harm, divided is the guard.
Reference Hint
Study anchor (closed-book): memorize Fall protection layout calculation from Cal/OSHA Title 8 Construction Safety Orders; CSLB B General Building. / Cal/OSHA Title 8 construction fall protection layout concepts; know the rule or calculation trigger without relying on exam-room lookup.
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