Excavator Operator Certification Exam Prep · Question
According to WorkSafeBC regulations, what is the maximum permissible slope for a temporary excavation bank in granular soil where no shoring or support system is used?
WorkSafeBC OHS Regulation 20.94(3) specifies that an excavation bank in granular soil, unless otherwise certified by a professional engineer, must not exceed an
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Question: According to WorkSafeBC regulations, what is the maximum permissible slope for a temporary excavation bank in granular soil where no shoring or support system is used?
Answer options:
- 1 horizontal to 1 vertical (45 degrees). ✅ 1.5 horizontal to 1 vertical (approx. 33.7 degrees).
- 0.75 horizontal to 1 vertical (approx. 53.1 degrees).
- 2 horizontal to 1 vertical (approx. 26.6 degrees).
Correct answer: 1.5 horizontal to 1 vertical (approx. 33.7 degrees).
Explanation: WorkSafeBC OHS Regulation 20.94(3) specifies that an excavation bank in granular soil, unless otherwise certified by a professional engineer, must not exceed an angle of 1.5 horizontal to 1 vertical.
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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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