Red Seal Bricklayer Practice Exam

The correct answer is that grout commonly contains water and cement. Grout is a mixture primarily used in masonry and tile applications to fill gaps or spaces and to provide a bond between the tiles or bricks.

In this mixture, the water activates the cement, which hardens and binds the materials together once it cures. This combination is essential for achieving the desired strength and durability that grout needs to perform its function.

The other options do not accurately represent the composition of grout. Sand is often a component in some types of grout, particularly sanded grout, but it is not exclusively made from sand. The mixture of clay and gravel does not align with traditional grout formulations, and neither does the combination of wood and mortar, as these do not contribute to the binder properties required in grout applications. Understanding that grout typically consists of a blend of water and cement helps clarify its role in construction and masonry work.