Heavy Equipment Operator Certification Exam Prep · Question
A project requires 15,000 BCM of common excavation material. If the material has an average swell factor of 20%, what is the total loose cubic volume (LCM) that needs to be transported?
The total loose cubic volume (LCM) is calculated by multiplying the bank cubic volume (BCM) by (1 + swell factor): 15,000 BCM * (1 + 0.20) = 15,000 BCM * 1.20 =
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Question: A project requires 15,000 BCM of common excavation material. If the material has an average swell factor of 20%, what is the total loose cubic volume (LCM) that needs to be transported?
Answer options:
- 15,000 LCM ✅ 18,000 LCM
- 12,000 LCM
- 18,750 LCM
Correct answer: 18,000 LCM
Explanation: The total loose cubic volume (LCM) is calculated by multiplying the bank cubic volume (BCM) by (1 + swell factor): 15,000 BCM * (1 + 0.20) = 15,000 BCM * 1.20 = 18,000 LCM. (Reference: OPSWA HEO Curriculum, Earthmoving Math Module, Swell Factor).
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