Linework standards: after constructing an auxiliary view with projection lines, how should the construction/projection lines appear in the finished, plotted view according to drafting best practices?

Introduction / Context:
Clean line hierarchy is essential for readable drawings. During creation, drafters use light projection or construction lines; however, these should not visually compete with object lines in the final deliverable.

Given Data / Assumptions:

• Auxiliary views are built from principal views using projection lines.
• Final plots should emphasize edges and features, not temporary guides.
• CAD layers typically control color/weight for construction geometry.

Concept / Approach:
Construction lines should remain light, thin, or placed on non-plot layers. They serve as scaffolding and should not appear as bold object edges. If plotted, they must be visually distinct and much lighter than object lines to avoid misinterpretation.

Step-by-Step Solution:

Verification / Alternative check:
Perform a print at scale and confirm no reader could mistake construction guides for part edges.

Why Other Options Are Wrong:

• Object lines: Would imply projection aids are permanent features; incorrect.
• Reference lines: Not a standard plotted category for auxiliary construction; terminology varies.
• Duplicate 'Construction lines': The correct designation remains construction; ensure they are non-dominant or non-plot.

Common Pitfalls:
Leaving construction layers on with the same weight as object lines, reducing clarity.

Final Answer:
Construction lines