Excavator Operator Certification Exam Prep · Question
What characteristic best describes Type 2 soil for the purpose of excavation safety?
Type 2 soil, as per O. Reg. 213/91, Part III, is typically a cohesive soil or previously excavated soil that is reasonably stiff and stable but might have some
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Question: What characteristic best describes Type 2 soil for the purpose of excavation safety?
Answer options:
- Cohesive soil, such as clay, with high compressive strength, requiring minimal support.
- Granular soil, such as sand or gravel, with low cohesion making it highly unstable.
- Previously excavated or disturbed soil, or soil exhibiting signs of cracking, requiring careful assessment. ✅ Normally cohesive soil or previously excavated soil that is reasonably stiff but may possess some cracks or fissures.
Correct answer: Normally cohesive soil or previously excavated soil that is reasonably stiff but may possess some cracks or fissures.
Explanation: Type 2 soil, as per O. Reg. 213/91, Part III, is typically a cohesive soil or previously excavated soil that is reasonably stiff and stable but might have some fissures or cracks, requiring steeper slopes or shoring than 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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