A straight trench is 90 feet long, and the access rule in the problem requires ladder access within 25 feet of workers. How many access points are needed to keep maximum travel within 25 feet along the trench?
Correct Answer
D) 4.
Placing access points so no worker travels more than 25 feet along a 90-foot trench requires four access points in this simplified layout problem.
Why This Is the Correct Answer
Placing access points so no worker travels more than 25 feet along a 90-foot trench requires four access points in this simplified layout problem.
Why the Other Options Are Wrong
Option A: 1.
1. is below the supported result for excavation access; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 2.
2. is below the supported result for excavation access; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 3.
3. is below the supported result for excavation access; it likely omits allowance, conversion, coverage, or final round-up.
Memory Technique
Excavation Access cart for Laying Out: placing first, points second, whole units last.
Reference Hint
Study anchor (closed-book): memorize Excavation access from Cal/OSHA Title 8 Construction Safety Orders; CSLB Law and Business. / Title 8 excavation access and egress; know the rule or calculation trigger without relying on exam-room lookup.
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