Construction Supervisor License Practice Exam

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Prepare for the Construction Supervisor License Exam with engaging flashcards and multiple-choice questions. Every question includes hints and explanations to boost your understanding. Ace your exam!

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How far must crushed stone used for foundation drains extend beyond the edge of the footing in a split-level duplex?

A. 6 inches , 6 inches
B. 9 inches , 4 inches
C. 12 inches , 4 inches
D. 12 inches , 6 inches

The correct answer is: D. 12 inches , 6 inches

In a split-level duplex, the requirement for crushed stone to extend beyond the edge of the footing is crucial for ensuring proper drainage and preventing moisture-related issues in the foundation. The standard practice dictates that the crushed stone should extend at least a certain distance out from the footing to allow for effective water management. The correct answer indicates that the crushed stone must extend 12 inches beyond the footing on one side and 6 inches on the other. This configuration is designed to provide adequate drainage on both sides of the footing, ensuring that water does not accumulate near the foundation, which could lead to problems such as erosion, settlement, or structural damage. Having 12 inches on one side allows for a broader area of drainage, accommodating more water runoff, especially in regions with high rainfall or poor soil drainage. The 6-inch extension provides enough space for drainage on the opposite side, balancing the need for effective water dispersal while maintaining structural integrity. This arrangement reflects common practices in building codes and design principles focused on moisture management, which is critical for the lifespan and stability of the structure.