Introduction / Context:
Computer-Aided Design (CAD) replaced pencils and drafting boards, but it did not replace drafting fundamentals. Standards bodies such as ISO and ASME define how drawings should communicate geometry, size, tolerances, finishes, and materials. This item asks whether those same standards and concepts apply equally to CAD and to hand-made drawings.
Given Data / Assumptions:
- Drawings are contractual documents and must be unambiguous.
- Standards include line types, dimensioning rules, tolerancing, symbols, and notes.
- Output can be plotted hardcopies or digital PDFs generated from CAD.
Concept / Approach:
Drafting standards govern the content and presentation independent of the tool used. CAD helps ensure consistency, but conformance still depends on following the same rules: correct line hierarchy, dimension placement, scale declaration, and standardized symbols for features and treatments.
Step-by-Step Solution:
Identify the goal of a drawing: fully define part/assembly intent.Recognize that standards (ASME Y14 series, ISO GPS family) are tool-agnostic.Note that CAD adds layers (layers, blocks, styles) to implement—not replace—those rules.Conclude the same general concepts and standards apply in both contexts.
Verification / Alternative check:
Compare a compliant hand sketch and a CAD print: the same symbols, line types, and dimensioning logic must appear.
Why Other Options Are Wrong:
Incorrect: Suggests CAD obeys different drafting laws, which is untrue.Applies only to mechanical drawings: Civil/architectural drawings also rely on the same principle.True for CAD but not for prints: Prints are the deliverable and must follow standards regardless of authoring tool.
Common Pitfalls:
Assuming CAD automates correctness; poor settings can still violate standards.Confusing company CAD templates with international standards.
Final Answer:
Correct
Discussion & Comments