Heavy rain falls overnight into an open trench. The crew arrives before the planned morning utility work. What should occur before workers enter?
Correct Answer
D) Have the competent person reinspect and correct hazards before entry
Excavations require competent-person inspection after events such as rainstorms that can increase hazard. Other choices rely on stale conditions or put employees into a changed excavation before inspection.
Why This Is the Correct Answer
Excavations require competent-person inspection after events such as rainstorms that can increase hazard. Other choices rely on stale conditions or put employees into a changed excavation before inspection.
Why the Other Options Are Wrong
Option A: Enter if the trench looked safe yesterday
In general project requirements, Enter if the trench looked safe yesterday is the wrong selection for Competent-person inspection: the option does not produce the required Competent-person inspection outcome, Have the competent person reinspect and correct hazards before entry.
Option B: Pump water only after employees enter
The trap in B is Pump water only after employees enter. That selection is wrong because it leaves the work at an informal or incomplete stage, while Competent-person inspection requires Have the competent person reinspect and correct hazards before entry; A competent person inspects excavations after hazard-increasing occurrences such as rainstorms.
Option C: The crew should use the previous week's soil classification without review
Choice C gives Use the previous week's soil classification without review. Its specific error: the option delays or omits the controlling step.
Memory Technique
Remember competent-person inspection by its jobsite consequence: the correct move points to Have the competent person reinspect and correct hazards before entry.
Reference Hint
Open 29 CFR 1926 OSHA Construction Standards; use 29 CFR 1926.651(k)(1) to confirm that Excavations require competent-person inspection after events such as rainstorms that can increase hazard.
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