Construction Supervisor License Practice Exam

What is corbelling?

1. A. a type of solid flue liner

2. B. the projection of masonry units to form a shelf or ledge

3. C. an offset in wood framing

4. D. weaving horizontal wood framing members

The correct answer is: B. the projection of masonry units to form a shelf or ledge

Corbelling refers to the architectural technique of projecting masonry units from a wall to create a shelf or ledge. This method involves stacking bricks or stones in such a way that they stagger outward from the wall surface, providing support for structures like cornices, architraves, or even balconies. It not only serves a functional purpose, allowing for the distribution of loads, but also contributes to the aesthetic appeal of the building, offering visual variety and character to the façade. In contrast to other options, a solid flue liner relates to the inner lining of a chimney and does not involve masonry construction techniques. An offset in wood framing pertains to a change in direction or level of the framing members, which is different from the concept of corbelling. Weaving horizontal wood framing members is more associated with structural integrity of walls but does not involve the protruding units characteristic of corbelling. Thus, the definition of corbelling aligns specifically with the projection of masonry units to form a ledge.