Lettering conventions on detail sheets For readability and standards compliance, how should text on a typical engineering detail sheet be oriented on the page?

Introduction / Context:
Clear lettering is as important as accurate dimensions. Standards generally require that drawing text be readable from the bottom or the right side of the sheet, which effectively means horizontal orientation for the main body of notes and dimensions.

Given Data / Assumptions:

• The sheet contains dimensions, notes, and callouts.
• Readers may view the sheet on screen or in print.
• Consistency improves speed and accuracy in manufacturing and inspection.

Concept / Approach:
Horizontal placement ensures most text can be read without rotating the sheet. While leaders may angle, the text itself remains horizontal. Bold text or specific architectural fonts are not universally appropriate for engineering details; use the company-standard font and height for legibility.

Step-by-Step Solution:

Verification / Alternative check:
Print a half-scale check plot to ensure all text remains legible and horizontal in typical shop conditions.

Why Other Options Are Wrong:

• Bold text: Not a general requirement; can reduce readability at small sizes.
• Architectural text style: Discipline-specific and not mandated on mechanical detail sheets.
• None of the above: Incorrect because horizontal placement is the standard.

Common Pitfalls:
Allowing annotation tools to auto-rotate text with leaders; lock orientation to horizontal for consistency.

Final Answer:
placed horizontally