Identification of multiple details on one sheet: When several distinct part details appear on a single drawing sheet, must each part be clearly identified (name, number, or label), or can identification be omitted?

Difficulty: Easy

Correct Answer: Incorrect

Explanation:


Introduction / Context:
Clarity and traceability are essential in working drawings. When multiple part details are shown on one sheet—common in small components or families—each part must be unmistakably identified so manufacturing, inspection, and ERP systems can link the correct information to the correct item.



Given Data / Assumptions:

  • Multiple distinct parts are depicted on a single sheet.
  • Each part will receive its own part number and BOM entry.
  • Downstream users rely on unambiguous identification.


Concept / Approach:
Clear labeling (part name, number, or callout) prevents mix-ups in fabrication and inventory. Identification also ties each detail to specific notes, materials, and tolerances. Omitting IDs can cause incorrect manufacturing, rework, or shipment of the wrong part, and undermines configuration control.



Step-by-Step Solution:

Assign unique identifiers to each detailed part (e.g., Item 1, Item 2) with corresponding part numbers.Place labels near each view and include a keyed note or mini-BOM on the sheet.Ensure that material and finish notes are unambiguously associated with the correct detail.Update ERP and revision records to match the drawing identification.


Verification / Alternative check:

Ask a reviewer to source the correct material and program machining for each part solely from the sheet—no questions should remain.


Why Other Options Are Wrong:

Correct only for assemblies / Allowed to omit IDs if parts look unique / Identification can be skipped when scale is 1:1: None of these conditions remove the need for explicit identification of each detail.


Common Pitfalls:

Using a single general note to cover multiple parts without clear mapping.Forgetting to update identifiers after design revisions.


Final Answer:

Incorrect

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