Dimensioning convention for oblique drawings In technical drafting and CAD, oblique drawings are dimensioned in a manner most similar to which other standard drawing type, in terms of how sizes, notes, and extension/leader lines are applied?

Introduction / Context:
Dimensioning rules help ensure that any manufactured part reflects the designer's intent. Oblique drawings are pictorial views that show one face of the object in true shape and size, with depth projected at an angle. A common question is: which established dimensioning practice should be followed for oblique views?

Given Data / Assumptions:

• We are comparing dimensioning practices across drawing types.
• Oblique drawings show the front face in true size; receding edges represent depth.
• Orthographic drawings are the standard for true-size dimensioning practice.

Concept / Approach:
ASME and traditional drafting practice recommend applying dimensions on the view where the related feature appears in true shape and true size. In oblique drawings, the front face is true shape; therefore, dimensions are placed just as they would be on an orthographic view of that face. Leaders, extension lines, arrowheads, and notes follow orthographic-style conventions. Depth dimensions are called out numerically rather than measured from the pictorial depth scale, mirroring orthographic methods of stating sizes rather than measuring from the sheet.

Step-by-Step Solution:

Verification / Alternative check:
Compare an oblique of a rectangular block to its orthographic front view. All width and height dimensions transfer exactly. Only depth is shown pictorially but dimensioned numerically. The conventions match orthographic rules for clarity and legibility.

Why Other Options Are Wrong:

• Isometric: although also pictorial, dimension placement rules still default to orthographic standards, not unique isometric rules.
• Angular: not a drawing type; it describes a measurement.
• Parallel: describes projection behavior, not a dimensioning convention.

Common Pitfalls:

• Trying to scale the depth along the receding axis instead of giving a numerical dimension.
• Placing dimensions on foreshortened faces, which reduces clarity.

Final Answer:
Orthographic