What letter identifies architectural drawings?

• A. A
• B. B
• C. C
• D. D

Answer: (A)

Drawing sets are organized by discipline, and the sheet designation uses a prefix letter to tell you which discipline produced it. Architectural drawings are identified by the letter A, so any sheet labeled with A is architectural. This helps you quickly distinguish architectural content from structural, mechanical, electrical, and other disciplines, ensuring you follow the correct drawing conventions, scales, and symbols. In practice, you might see architectural plans labeled A-101, elevations A-102, sections A-200, which tells you these are architectural drawings. If a sheet carries a different prefix, it isn’t architectural.