In auxiliary projections, which specific auxiliary view type uses a break line to indicate that only a portion of the object is shown?

Introduction / Context:
Auxiliary views can be limited to only the area necessary to communicate design intent. When the full extent of a surface is unnecessary, a partial auxiliary view is used to keep drawings clear and uncluttered.

Given Data / Assumptions:

• The designer wants to show an inclined feature in true shape without redrawing the entire object.
• Space and clarity on the sheet are priorities.
• A conventional break symbol is acceptable per standards.

Concept / Approach:
A partial auxiliary view displays only the region of interest and is bounded by a break line, signaling that the object continues beyond the shown limits. This saves drafting time and improves readability while maintaining accuracy where needed.

Step-by-Step Solution:

Verification / Alternative check:
Confirm that all necessary features are visible and dimensionable. If not, extend the partial region until requirements are met while minimizing clutter.

Why Other Options Are Wrong:

• Primary/Secondary: These describe projection sequence, not the use of break lines.
• Revolved: A local sectional technique for showing cross-sections on the view itself, not a broken auxiliary boundary.

Common Pitfalls:
Failing to clearly draw the break line or omitting essential geometry inside the partial boundary may confuse manufacturing.

Final Answer:
Partial