HAAG Certified Reviewer Practice Exam 2025 – Complete Study Guide

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What is the primary use of mortar in construction?

Sealing joints

Adhering tiles

The primary use of mortar in construction is to act as an adhesive that binds different building materials together, such as bricks, stones, or tiles. Mortar provides not only adhesion but also a level of flexibility and durability that is essential for maintaining the structural integrity of the materials it holds together. This adhesive quality is particularly important when installing tiles as it ensures that they stay securely in place, can withstand stresses, and enables them to resist moisture.

While sealing joints and other finishing tasks are important aspects of construction, they do not define the primary purpose of mortar. Painting surfaces involves entirely different materials and processes, and hence does not pertain to the use of mortar at all.

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Finishing drywall

Painting surfaces

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