North Carolina Building Contractor License Practice Exam

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What is the required bearing depth for a deep long span joist on a steel bearing plate?

2 inches
3 inches
4 inches
4 inches at minimum

The correct answer is: 4 inches

The required bearing depth for a deep long span joist on a steel bearing plate is 4 inches. This specification is crucial in ensuring the structural integrity and load distribution of the joist. A bearing depth of 4 inches provides sufficient support, reducing the risk of failure due to inadequate bearing area. This depth helps in transferring the load effectively from the joist to the supporting structure, which is particularly important in long span applications where loads can be significant. While options suggesting lesser depths might seem feasible in different contexts, they do not meet the safety requirements and design standards typically established for deep long span joists. Therefore, adhering to the 4 inches requirement is essential for maintaining the strength and stability of the construction.