If you need to confirm the units for all dimensions on a part, which document should you consult?

If you need to confirm the units for all dimensions on a part, which document should you consult?

• A. Drawing
• B. Job Card
• C. Quality Plan
• D. Material List

Answer: (A)

The drawing is the authoritative source for dimensional information, including the units used for every dimension. It carries the unit system in the title block and in the dimension notes, so you can confirm the units for all features directly from the drawing. The other documents—Job Card, Material List, and Quality Plan—serve different purposes (instructions for fabrication, materials, and inspection/QA procedures, respectively) and do not define the units for each dimension of the part. If you ever have any doubt about which units apply, the drawing is the one to rely on.

The drawing is the authoritative source for dimensional information, including the units used for every dimension. It carries the unit system in the title block and in the dimension notes, so you can confirm the units for all features directly from the drawing. The other documents—Job Card, Material List, and Quality Plan—serve different purposes (instructions for fabrication, materials, and inspection/QA procedures, respectively) and do not define the units for each dimension of the part. If you ever have any doubt about which units apply, the drawing is the one to rely on.