Excavator Operator Certification Exam Prep · Question
When operating an excavator on an incline, which action significantly increases the risk of a rollover?
Rapidly swinging a loaded bucket, especially downhill, shifts the machine's centre of gravity outside its base of support, making a rollover much more likely. O
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Question: When operating an excavator on an incline, which action significantly increases the risk of a rollover?
Answer options:
- Keeping the bucket low and tucked close to the machine's centre of gravity. ✅ Rapidly swinging a fully loaded bucket downhill.
- Maintaining a slow and steady travel speed.
- Positioning the counterweight uphill when travelling on a slope.
Correct answer: Rapidly swinging a fully loaded bucket downhill.
Explanation: Rapidly swinging a loaded bucket, especially downhill, shifts the machine's centre of gravity outside its base of support, making a rollover much more likely. Operators should always move slowly and deliberately on slopes.
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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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