Heavy Equipment Operator Certification Exam Prep · Question
An excavation measures 15 metres long, 8 metres wide, and 3 metres deep. If the soil has a swell factor of 25%, what is the bank cubic volume (BCM) of material to be excavated?
The bank cubic volume is calculated directly from the excavation dimensions: 15 m * 8 m * 3 m = 360 BCM. The swell factor is used for loose cubic volume calcula
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Question: An excavation measures 15 metres long, 8 metres wide, and 3 metres deep. If the soil has a swell factor of 25%, what is the bank cubic volume (BCM) of material to be excavated?
Answer options: ✅ 360 BCM
- 288 BCM
- 450 BCM
- 300 BCM
Correct answer: 360 BCM
Explanation: The bank cubic volume is calculated directly from the excavation dimensions: 15 m * 8 m * 3 m = 360 BCM. The swell factor is used for loose cubic volume calculations, not bank volume. (Reference: OPSWA HEO Curriculum, Earthmoving Math Module).
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