Which grout has the same characteristics as a dry set mortar and isn't suitable for areas of ordinary use?

• A. Cement grout
• B. Latex grout
• C. Epoxy grout
• D. Drywall grout

Answer: (D)

Grout choices differ by binder and how they perform under use and moisture. The option that lines up with the idea of being a lightweight, gypsum-based filler used for joints in drywall—not for tile work—fits the description of having the same basic nature as a dry-set mortar in terms of being a simpler, less robust material and not suitable for areas of ordinary use. Drywall grout (for drywall joints) isn’t designed for tile installations or for widespread, everyday tiling needs; it lacks the strength and moisture resistance you’d expect from grout used in floors or showers. The other grout types—cement grout, latex-modified grout, and epoxy grout—are specifically formulated for tile work and can handle typical or challenging conditions in ordinary-use areas.