National Home Inspector Practice Exam

Which statement is true regarding powder post beetles?

1. Detected by a "clicking" sound when chewing wood

2. Presence confirmed by reconstructed shelter tubes

3. Create exit holes approximately 1/16 inch in diameter

4. Known as "deathwatch" beetles

The correct answer is: Create exit holes approximately 1/16 inch in diameter

The statement regarding powder post beetles that is true is that they create exit holes approximately 1/16 inch in diameter. This characteristic is significant for identification purposes. Powder post beetles are known for boring into wood and leaving behind small, round exit holes as they emerge. These holes typically range in size from 1/16 to 1/8 inch in diameter, with 1/16 inch being a common measurement for certain species of powder post beetles. Understanding the size of the exit holes can help home inspectors and property owners identify infestations, as it differentiates them from damage caused by other wood-boring insects. Moreover, recognizing these exit holes is crucial for determining the necessary steps for treatment and prevention of further wood damage. The other options do not accurately describe characteristics of powder post beetles. They do not create a "clicking" sound, which is more associated with other wood-boring insects. They also do not reconstruct shelter tubes, as seen in some termite species, and while "deathwatch" beetles are indeed wood-boring beetles, they are not the same as powder post beetles and are known for their distinctive tapping sound made during mating rituals.