Loader Operator Certification Exam Prep · Question
A loader operator is preparing a site for a concrete slab pour and needs to achieve a final grade of -0.15 m from the established benchmark. The current elevation shows +0.05 m from the benchmark. How much material needs to be removed?
To go from +0.05 m to -0.15 m, the operator needs to remove 0.05 m to reach the benchmark and then an additional 0.15 m below the benchmark, totalling 0.20 m of
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Question: A loader operator is preparing a site for a concrete slab pour and needs to achieve a final grade of -0.15 m from the established benchmark. The current elevation shows +0.05 m from the benchmark. How much material needs to be removed?
Answer options:
- 0.10 m ✅ 0.20 m
- 0.05 m
- 0.15 m
Correct answer: 0.20 m
Explanation: To go from +0.05 m to -0.15 m, the operator needs to remove 0.05 m to reach the benchmark and then an additional 0.15 m below the benchmark, totalling 0.20 m of material removal.
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Question explanations
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