Excavator Operator Certification Exam Prep · Question
Before an excavator begins digging for a new building foundation, the operator notices a faded 'locate' marking on the ground indicating a buried gas line. What is the immediate and most appropriate action the operator should take?
Any uncertainty regarding utility locates, especially if marks are faded or unclear, requires immediate verification with the utility company or a call-before-y
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Question: Before an excavator begins digging for a new building foundation, the operator notices a faded 'locate' marking on the ground indicating a buried gas line. What is the immediate and most appropriate action the operator should take?
Answer options:
- Proceed with caution, digging slowly around the marked area. ✅ Contact the utility company or call-before-you-dig service to verify the locate.
- Assume the mark is accurate and dig manually within 1 metre of the line.
- Relocate the foundation layout by a few metres to avoid the marked area.
Correct answer: Contact the utility company or call-before-you-dig service to verify the locate.
Explanation: Any uncertainty regarding utility locates, especially if marks are faded or unclear, requires immediate verification with the utility company or a call-before-you-dig service. Proceeding with caution or assuming accuracy without verification poses a significant safety risk. Relocating the foundation layout is not an immediate action for verifying a locate and may not be feasible.
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Question explanations
- During a final inspection of an excavator, prior to beginning work, an operator notices significant play in th
- An excavator operator is preparing to dig a trench in cohesive soil. To achieve maximum breakout force, what a
- Which control typically governs the arm (or dipper arm) movement for an excavator?
- What condition might require sloping or shoring of a trench less than 1.2 meters (4 feet) deep?
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