ACtE08 · Chapter 8Demo2 · Set 1🏛️ Past Licensure QuestionID: 7f4865c9
Under international drawing standards (ISO 216), which letter is used to designate the standard series of engineering drawing paper sheets?
Under international drawing standards (ISO 216), which letter is used to designate the standard series of engineering drawing paper sheets?
Multiple Choice Options
- A✓ Correct Option
A
- B
D
- C
P
- D
S
Detailed Technical Solution & Explanation
The International Organization for Standardization (ISO 216 / ISO 5457) establishes the 'A' series format (A0, A1, A2, A3, A4) as the universal standard for technical and engineering drawing sheets. An A0 sheet has an area of exactly with an aspect ratio of , and all subsequent sizes are derived by successive halving.
Option Analysis:
•
Option A (A): Correct; standard international designation for drawing paper sheets (e.g., A0 to A4).
•
Option B (D): Incorrect; American ANSI drawing series uses ANSI D, but ISO standardizes 'A'.
•
Option C (P): Incorrect; not a recognized ISO sheet series.
•
Option D (S): Incorrect.
Reference: Demo2 · Set 1NEC Licensure Syllabus