NCIDQ IDFX Practice Exam

Quarter sawing is characterized by which of the following cutting methods?

1. Cutting the log into quarters and sawing parallel to the growth rings

2. Cutting the log in half and sawing across the growth rings

3. Cutting the log into quarters and sawing perpendicular to a diameter line

4. Sawing in a radial pattern to reduce waste

The correct answer is: Cutting the log into quarters and sawing perpendicular to a diameter line

Quarter sawing involves cutting the log into quarters and then sawing perpendicular to a diameter line, which is key to its unique characteristics. This method allows for the growth rings of the wood to be cut at angles that minimize warping and provide a stable surface, which is essential for high-quality finished products. The result is lumber that exhibits a dramatic pattern of grain and often has a more uniform width, making it ideal for applications like furniture and cabinetry where appearance and stability are crucial. While other methods of sawing, such as plain sawing or rift sawing, have their own advantages, they do not achieve the same structural benefits as quarter sawing. Plain sawing, for instance, often leads to more pronounced cupping and warping due to the way the growth rings are cut. The perpendicular cuts in quarter sawing help maintain the integrity of the wood over time, providing both functional and aesthetic advantages.