Excavator Operator Certification Exam Prep · Question
Which of the following is considered a 'Type 1' soil under Canadian OHS regulations for excavation?
Type 1 soil generally refers to solid, stable, and cohesive soil, or densely compacted granular soil (e.g., Ontario O. Reg. 213/91, Part III). Well-compacted sa
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Question: Which of the following is considered a 'Type 1' soil under Canadian OHS regulations for excavation?
Answer options:
- A soft, saturated clay with visible cracks. ✅ Well-compacted sand and gravel, with a low moisture content.
- Previously excavated backfill that has been improperly compacted.
- Any soil that has been frozen and now contains significant ice lenses.
Correct answer: Well-compacted sand and gravel, with a low moisture content.
Explanation: Type 1 soil generally refers to solid, stable, and cohesive soil, or densely compacted granular soil (e.g., Ontario O. Reg. 213/91, Part III). Well-compacted sand and gravel with low moisture content can exhibit characteristics of Type 1.
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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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