Excavator Operator Certification Exam Prep · Question
What is the maximum allowed slope gradient for an un-shored excavation in Type C soil, according to typical OHS guidelines?
Type C soil is considered the most unstable (e.g., granular, saturated, or previously disturbed). OHS regulations typically require a maximum allowable slope of
Start free practice for Excavator Operator Certification Exam Prep
263 questions · no signup required · 40 free questions per day
Question: What is the maximum allowed slope gradient for an un-shored excavation in Type C soil, according to typical OHS guidelines?
Answer options:
- 1:1 (45 degrees)
- 0.5:1 (63.4 degrees)
- 1.5:1 (33.7 degrees) ✅ Not greater than 1:2 (26.6 degrees)
Correct answer: Not greater than 1:2 (26.6 degrees)
Explanation: Type C soil is considered the most unstable (e.g., granular, saturated, or previously disturbed). OHS regulations typically require a maximum allowable slope of 1:2 (one foot horizontal for every two feet vertical) or flatter for unshored excavations in Type C soil.
Start free practice for Excavator Operator Certification Exam Prep
263 questions · no signup required · 40 free questions per day
More about Excavator Operator Certification Exam Prep
Related Questions
- 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?
- According to IUOE best practices, what is the LAST thing an operator should do before leaving the excavator's
- Travel on slope — bucket should be:
More for Excavator Operator Certification Exam Prep candidates
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?
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Excavator Operator Certification Exam Prep Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.