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Questions and Answers
What is a spoke in the context of a wheel?
What is a spoke in the context of a wheel?
- The outer rim of the wheel
- The central hub of the wheel
- The weight of the wheel
- The rod radiating from the hub to the rim (correct)
Ribs, webs, and lugs should always include section lines in the section view.
Ribs, webs, and lugs should always include section lines in the section view.
False (B)
What is the purpose of a lug in a mechanical context?
What is the purpose of a lug in a mechanical context?
For attachment
An aligned section is created by rotating the object’s features about a ______.
An aligned section is created by rotating the object’s features about a ______.
When drawing a conventional break for a long object, what should be done?
When drawing a conventional break for a long object, what should be done?
Match the following terms with their definitions:
Match the following terms with their definitions:
A section view of a spoke should include section lines if the cutting plane is passed longwise.
A section view of a spoke should include section lines if the cutting plane is passed longwise.
Define the term 'conventional break'.
Define the term 'conventional break'.
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Study Notes
Section View Representation
- Rib, Web, Spoke, and Lug: These are common features used in technical drawings to represent structural components of objects.
- Rib and Web: Thin, flat features that act as support.
- Spoke: A rod structure that connects a wheel's hub to its rim.
- Lug: An ear-like projection that is built into an object for attachment.
- Section View Convention: For clarity, section lines are omitted in the following cases:
- Rib, Web, and Lug: If the cutting plane passes through these features flatwise.
- Spoke: If the cutting plane passes longitudinally.
Aligned Section
- Definition: An aligned section is a section view where features of an object are rotated about a symmetry axis to create a more clear representation.
- Purpose: Used to eliminate misleading impressions and provide a more accurate depiction of features that are not symmetrical or appear asymmetrical in a normal section view.
Conventional Break
- Purpose: Used for long objects that need to be represented at a smaller scale to fit on the paper.
- Method: A portion of the object with no important information is removed, and conventional break lines are drawn to indicate the section that has been removed.
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