In pole integrity testing for decay pockets, what action is described as indicating decay pockets?

In pole integrity testing for decay pockets, what action is described as indicating decay pockets?

• A. Wrapping a hammer around the pole starting near the ground and listening for a dull thud
• B. Using a plastic hammer and listening for a clear tone
• C. Tapping with a nail and listening for a clang
• D. Visually inspecting for cracks only

Answer: (A)

Sounding the pole by tapping it is a practical way to detect internal decay. When you wrap a hammer around the pole starting near the ground and listen for a dull thud, you’re checking for areas that have lost stiffness due to decay pockets. Decayed wood doesn’t carry sound as well, so it sounds muted and nonresonant compared with sound wood, which rings clearer. Using a plastic hammer or tapping with a nail doesn’t reliably reveal these pockets, and visual inspection alone can’t see inside the wood. So the described tapping and listening for a dull thud is the best indicator of decay pockets.

Sounding the pole by tapping it is a practical way to detect internal decay. When you wrap a hammer around the pole starting near the ground and listen for a dull thud, you’re checking for areas that have lost stiffness due to decay pockets. Decayed wood doesn’t carry sound as well, so it sounds muted and nonresonant compared with sound wood, which rings clearer. Using a plastic hammer or tapping with a nail doesn’t reliably reveal these pockets, and visual inspection alone can’t see inside the wood. So the described tapping and listening for a dull thud is the best indicator of decay pockets.