West Virginia Contractors License Test 2025 – 400 Free Practice Questions to Pass the Exam

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What is the minimum distance for a drill hole for piping or conduit from the top and bottom of a floor joist?

0.5 inches

1 inch

2 inches

The minimum distance for a drill hole for piping or conduit from the top and bottom of a floor joist is set at 2 inches to maintain the structural integrity of the joist. Drilling too close to the top or bottom can compromise the strength and stability of the joist, potentially leading to failure under load. This specified distance helps ensure that the floor joist retains sufficient material around the hole for both load-bearing capacity and resistance to cracking or splitting.

The code requirements and industry standards specify this distance to prevent issues that may arise from electrical or plumbing installations, ensuring that proper support remains throughout the joist. Maintaining these clearances is critical for the safety and longevity of the construction, which is why it is important for contractors to adhere to such regulations.

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