The acceptable California Bearing Ratio for installing the lightweight fairlead beam is?

The acceptable California Bearing Ratio for installing the lightweight fairlead beam is?

• A. 5
• B. 7
• C. 10
• D. 12

Answer: (B)

California Bearing Ratio measures how strongly soil can support a load by comparing its resistance to penetration with a standard material. For mounting a lightweight fairlead beam, you need a base that won’t settle or shift under the load. A CBR of 7 is the minimum acceptable value because it indicates enough bearing capacity to keep the beam stable under expected forces. Values around 5 are typically too weak and would require stabilization, compaction, or a different base. Higher values, like 10 or 12, would also be adequate but aren’t necessary for this light installation; the critical threshold is 7.

California Bearing Ratio measures how strongly soil can support a load by comparing its resistance to penetration with a standard material. For mounting a lightweight fairlead beam, you need a base that won’t settle or shift under the load. A CBR of 7 is the minimum acceptable value because it indicates enough bearing capacity to keep the beam stable under expected forces. Values around 5 are typically too weak and would require stabilization, compaction, or a different base. Higher values, like 10 or 12, would also be adequate but aren’t necessary for this light installation; the critical threshold is 7.