Heavy Equipment Operator Certification Exam Prep · Question
Which tool is generally considered the safest and most effective for 'daylighting' a large diameter, live electrical conduit?
Hydrovac (vacuum excavation) is considered the safest and most effective method for daylighting sensitive utilities like live electrical conduits because it use
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Question: Which tool is generally considered the safest and most effective for 'daylighting' a large diameter, live electrical conduit?
Answer options:
- A skid-steer loader with a digging attachment
- A standard point shovel and mattock ✅ A hydrovac truck (vacuum excavation)
- An impact hammer
Correct answer: A hydrovac truck (vacuum excavation)
Explanation: Hydrovac (vacuum excavation) is considered the safest and most effective method for daylighting sensitive utilities like live electrical conduits because it uses pressurized water and a vacuum system to loosen and remove soil without direct mechanical contact, greatly reducing the risk of damage.
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