Mathematics · Transportation Engineering
A subgrade soil sample was tested using standard California Bearing Ratio (CBR) test apparatus, giving the following observations: 1. Penetration 2.5 mm: Load = 54.8 kg2. Penetration 5.0 mm: Load = 78.0 kg Taking standard standard loads (1370 kg at 2.5 mm and 2055 kg at 5.0 mm), what is the CBR value of the sample?
- 14.0%✓
- 24.5%
- 33.8%
- 45.0%
Correct answer
4.0%
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