Which type of section view is bounded (limited) by an irregular break line, revealing only a small localized interior area? Choose the section view defined by a freehand break boundary instead of a full cutting plane across the object.
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ARemoved section
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BRevolved section
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CBroken-out section
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DHalf section
Answer
Correct Answer: Broken-out section
Explanation
Introduction / Context:Not all interior details require a full or half section. When only a small region must be exposed, drafters use a localized technique that is quick, legible, and conserves drawing space: the broken-out section.
Given Data / Assumptions:
- Only a limited interior feature must be shown.
- A full-length cutting plane is unnecessary.
- A freehand or irregular break boundary is acceptable per standards.
Concept / Approach:
A broken-out section removes a small surface area using an irregular freehand break line. The drafter then hatch-fills the newly exposed cut surfaces. This method avoids extra views and shows the specific internal geometry of interest without clutter.
Step-by-Step Solution:
Identify the small internal feature that needs exposure.Sketch an irregular break boundary around that region.Remove the surface in the view and apply section hatching to the revealed material.Conclude that “Broken-out section” matches the description.Verification / Alternative check:
Standards describe broken-out sections as limited by freehand break lines, unlike full/half sections with straight cutting planes.
Why Other Options Are Wrong:
Removed section: a section taken from the object and placed elsewhere on the sheet.
Revolved section: a thin slice revolved in place (often on shafts) to show cross-section shape.
Half section: removes a quarter of the object to show half internal/half external, not a localized break.
Common Pitfalls:
Overusing full sections when a broken-out section suffices, which wastes time and space.
Final Answer:
Broken-out section