Loader Operator Certification Exam Prep · Question
When an articulated wheel loader is travelling at speed and the operator attempts a sharp turn on a hard, level surface, what is a common stability hazard, even without a heavy load?
Even on a level surface, a sharp turn at speed with an articulated loader can cause the machine's centre of gravity to shift outwards, leading to the outside wh
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Question: When an articulated wheel loader is travelling at speed and the operator attempts a sharp turn on a hard, level surface, what is a common stability hazard, even without a heavy load?
Answer options:
- Loss of traction in the drive wheels, causing the loader to spin out.
- Sudden, uncontrolled articulation, potentially leading to a jackknife.
- Overheating of the hydraulic steering system. ✅ The outside wheels lifting off the ground as the machine's centre of gravity shifts.
Correct answer: The outside wheels lifting off the ground as the machine's centre of gravity shifts.
Explanation: Even on a level surface, a sharp turn at speed with an articulated loader can cause the machine's centre of gravity to shift outwards, leading to the outside wheels lifting off the ground and potential instability or roll-over. Speed amplifies this effect.
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Question explanations
- An operator has just attached a new set of pallet forks using the machine's quick coupler. After initially tes
- A heavy-duty loader with articulating steering exhibits difficulty turning to the left, requiring significantl
- A loader operator observes that the hydraulic oil temperature gauge is consistently reading above the normal o
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