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Questions and Answers
What is a rib in the context of section view representation?
What is a rib in the context of section view representation?
- A cylindrical rod used for rotation
- A thin, flat feature acting as structural support (correct)
- A reinforced area for added strength
- A curved piece connecting two points
What is the primary function of a spoke in mechanical design?
What is the primary function of a spoke in mechanical design?
- To connect two structural components
- To radiate from the hub to the rim of a wheel (correct)
- To act as a mounting point for other parts
- To provide insulation in electronic devices
In section views, when should section lines be omitted for rib, web, and lug?
In section views, when should section lines be omitted for rib, web, and lug?
- Always, for clarity in view
- When the cutting plane is longwise through
- When the cutting plane is flatwise through (correct)
- When the cutting plane is angled
What is indicated by an aligned section in engineering drawings?
What is indicated by an aligned section in engineering drawings?
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What does a conventional break in long objects achieve?
What does a conventional break in long objects achieve?
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What is the definition of a lug in mechanical design?
What is the definition of a lug in mechanical design?
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What does the term 'web' refer to in the context of section views?
What does the term 'web' refer to in the context of section views?
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When is it appropriate to use a longwise cutting plane for a spoke?
When is it appropriate to use a longwise cutting plane for a spoke?
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Study Notes
Section View Representation of Rib, Web, Spoke, and Lug
- Ribs and webs are thin, flat structural features of an object.
- Spoke is a rod extending from a hub to the rim of a wheel.
- Lug is an ear-like feature designed for attachment.
Conventional Practice in Section View
- Rib, Web, and Lug: Omit section lines when the cutting plane passes flatwise through these features.
- Spoke: Omit section lines when the cutting plane passes lengthwise through.
Aligned Section
- An aligned section view is created by rotating the object's features about a symmetry axis to show the features in a principal view.
- This rotation is often used to clarify features that would otherwise appear in an unsymmetrical arrangement in a normal section view.
Conventional Break
- Conventional breaks are used to shorten long objects in drawings to save space.
- This involves removing a portion of the object that contains no critical information and drawing break lines at the ends of the removed section.
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