When sounding a pole to detect decay, what type of hammer should be used?

• A. A lightweight hammer
• B. A heavy sledge hammer
• C. A rubber mallet
• D. A standard hammer

Answer: (A)

When sounding a pole to detect decay, you want a strike that gives a clear, audible difference without risking damage to the wood. A lightweight hammer is ideal because it delivers enough impulse to hear how the wood resonates while keeping your control, reducing the chance of cracking or denting the surface.

A heavy sledge hammer would exert too much force, increasing the risk of damage and making it harder to discern subtle hollow sounds. A rubber mallet muffles the sound too much, making it difficult to judge the interior condition. A standard hammer might be heavier than needed and could produce too strong a impact, altering the sound or risking damage.