Excavator Operator Certification Exam Prep · Question
A crew is marking out an underground utility using paint. The client has requested excavation within 15 metres of these markings. What is the regulated minimum distance from the marked utility that machinery excavation is permitted without further investigation or hand-digging, often referred to as the 'buffer zone' in many Canadian provinces?
In many Canadian jurisdictions, the regulated minimum 'buffer zone' for mechanical excavation near a marked utility is 0.3 metres (or 30 cm) on either side of t
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Question: A crew is marking out an underground utility using paint. The client has requested excavation within 15 metres of these markings. What is the regulated minimum distance from the marked utility that machinery excavation is permitted without further investigation or hand-digging, often referred to as the 'buffer zone' in many Canadian provinces?
Answer options: ✅ 0.3 metres
- 0.6 metres
- 1.0 metre
- 1.5 metres
Correct answer: 0.3 metres
Explanation: In many Canadian jurisdictions, the regulated minimum 'buffer zone' for mechanical excavation near a marked utility is 0.3 metres (or 30 cm) on either side of the mark. Within this 0.6-metre wide zone, only hand-digging or other non-conductive methods are permitted to expose the utility.
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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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