Definition check: In technical documentation, “working drawings” refers to the complete set consisting of assembly drawings plus the necessary detail drawings for each manufactured part. Evaluate this definition.

Introduction / Context:
“Working drawings” are the authoritative documents used to manufacture and assemble a product. Understanding what they include ensures that the shop floor has everything required for production and quality assurance.

Given Data / Assumptions:

• A product is composed of multiple fabricated parts and standard items.
• Drawings must instruct both how to make each part and how to assemble them.
• Terminology follows common industry conventions.

Concept / Approach:
A complete working drawing package contains: (1) assembly drawings showing how parts fit together, including BOM and key interface dimensions; (2) detail drawings (or model-based definition) for each manufactured part, with all sizes, tolerances, finishes, and materials; and (3) any necessary specifications and notes. This structure enables consistent fabrication at scale and clear inspection criteria.

Step-by-Step Solution:

Verification / Alternative check:
Audit a sample project: if every item in the assembly BOM has either a detail drawing or a purchased spec, and the assembly sheet shows interfaces and orientation, the package qualifies as working drawings.

Why Other Options Are Wrong:

• Sketches alone (option B) are not production-ready.
• A BOM without graphics (option C) cannot convey geometry.
• Renders (option D) illustrate appearance but lack tolerances.
• Purchase orders (option E) are administrative, not geometric specifications.

Common Pitfalls:
Leaving out detail drawings for minor parts; inconsistent part numbers; missing tolerance notes and material specifications.

Final Answer:
Correct: working drawings include assembly and detail drawings