Heavy Equipment Operator Certification Exam Prep · Question
A vibratory roller compacts a 200 mm lift of granular material. If the material's uncompacted volume is 120 BCM and the target compaction requires a 15% reduction in its loose volume, what will be the final compacted volume in LCM if the material initially has a 20% swell factor from bank to loose?
First, convert bank cubic metres (BCM) to loose cubic metres (LCM): 120 BCM * (1 + 0.20) = 144 LCM. Next, apply the 15% volume reduction due to compaction: 144
Start free practice for Heavy Equipment Operator Certification Exam Prep
500 questions · no signup required · 40 free questions per day
Question: A vibratory roller compacts a 200 mm lift of granular material. If the material's uncompacted volume is 120 BCM and the target compaction requires a 15% reduction in its loose volume, what will be the final compacted volume in LCM if the material initially has a 20% swell factor from bank to loose?
Answer options:
- 102 LCM ✅ 122.4 LCM
- 144 LCM
- 129.6 LCM
Correct answer: 122.4 LCM
Explanation: First, convert bank cubic metres (BCM) to loose cubic metres (LCM): 120 BCM * (1 + 0.20) = 144 LCM. Next, apply the 15% volume reduction due to compaction: 144 LCM * (1 - 0.15) = 144 LCM * 0.85 = 122.4 LCM. (Reference: Alberta OHS Code Part 32, Section 471 on compaction).
Start free practice for Heavy Equipment Operator Certification Exam Prep
500 questions · no signup required · 40 free questions per day
More about Heavy Equipment Operator Certification Exam Prep
Related Questions
More for Heavy Equipment Operator Certification Exam Prep candidates
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Heavy Equipment Operator Certification Exam Prep Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.