Loader Operator Certification Exam Prep · Question
A wheel loader with a rated operating capacity (ROC) of 5,000 kg is operating on a 15-degree slope. What effectively happens to its ROC on this slope?
Operating on a slope significantly reduces the machine's stability and thus its effective rated operating capacity. A 15-degree slope can reduce ROC by a consid
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Question: A wheel loader with a rated operating capacity (ROC) of 5,000 kg is operating on a 15-degree slope. What effectively happens to its ROC on this slope?
Answer options:
- It increases slightly due to gravitational assistance.
- It remains the same if the operator is skilled. ✅ It is reduced by a significant factor, potentially by 20% or more.
- ROC is only affected by the type of material, not the slope.
Correct answer: It is reduced by a significant factor, potentially by 20% or more.
Explanation: Operating on a slope significantly reduces the machine's stability and thus its effective rated operating capacity. A 15-degree slope can reduce ROC by a considerable margin (often 20-30% or more, depending on the machine and direction of travel) due to the shift in the centre of gravity and increased tipping moment.
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Question explanations
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