Cauls may be flat or curved, depending on the whether the groundwork is flat or curved.

Question

Quizplus · Accepted Answer

Cauls are used to provide support to curved components and are themselves shaped to match the contours of the object being clamped. So, the shape of caul depends on the shape of the object it is used on. If the object has a flat surface, then the caul will be flat, and if it has a curved surface, then the caul will be curved to match the contour of the surface.

Cauls May Be Flat or Curved, Depending on the Whether