Which of the following would NOT be included in technical working drawings?

Technical working drawings are precise representations used in engineering design for the manufacturing and construction of products or structures. They provide detailed information necessary for the fabrication of the components being designed.

Material specifications are included in technical drawings because they specify what materials should be used to construct or manufacture the item, ensuring that the final product meets the necessary performance and safety standards. Dimensions are critical as they provide the exact measurements needed for parts to fit together correctly and function as intended. Construction details also play a vital role; they give guidelines on how to assemble or build the components, ensuring that any particular assembly methods are clear and precise.

Color variations, while potentially relevant in certain design contexts such as marketing or aesthetic presentations, are generally not part of technical working drawings. These drawings typically focus on functional and structural aspects rather than visual or aesthetic features. Therefore, specifying color variations does not align with the primary purpose of such technical documents, which emphasizes clarity in dimensions, materials, and construction techniques over visual elements.