Excavator Operator Certification Exam Prep · Question
When trenching, the spoil pile should be placed a minimum distance from the edge of the excavation. According to typical safety regulations like Ontario Regulation 213/91, what is this minimum safe distance, assuming stable soil conditions?
Ontario Regulation 213/91, Section 228(2), specifies that excavated material must be kept at least 0.6 metres (2 feet) horizontally from the edge of the excavat
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Question: When trenching, the spoil pile should be placed a minimum distance from the edge of the excavation. According to typical safety regulations like Ontario Regulation 213/91, what is this minimum safe distance, assuming stable soil conditions?
Answer options: ✅ 0.6 metres (approximately 2 feet)
- 0.3 metres (approximately 1 foot)
- The height of the trench, plus 0.5 metres
- 1.0 metre (approximately 3.3 feet)
Correct answer: 0.6 metres (approximately 2 feet)
Explanation: Ontario Regulation 213/91, Section 228(2), specifies that excavated material must be kept at least 0.6 metres (2 feet) horizontally from the edge of the excavation. This prevents material from falling back into the trench or adding surcharge weight that could cause a collapse.
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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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