A drawing sheet designated as A0 has size
- A841 x 1189 mmCorrect
- B594 x 841 mm
- C420 x 594 mm
- D297 x 420 mm
Solution
Concept
Standard dimensions of A0 drawing sheet
Formula
NONE
Step-by-step solution
1. Standard drawing sheet sizes are based on ISO standards where A0 has an area of 1 square meter with a 1:√(2) ratio. 2. The exact dimensions designated for an A0 sheet size are 841 mm by 1189 mm. 3. Therefore, a drawing sheet designated as A0 has a size of 841 x 1189 mm. Answer: A
Explanation
Under the ISO 216 standard for drawing sheets, the A0 size serves as the base designation with an area of 1 square meter. Its exact physical dimensions are 841 mm by 1189 mm based on the standard aspect ratio. Thus, 841 x 1189 mm is the correct size for an A0 drawing sheet.
Why the other options are wrong
B) 594 x 841 mm is the dimensions of an A1 drawing sheet. C) 420 x 594 mm is the dimensions of an A2 drawing sheet. D) 297 x 420 mm is the dimensions of an A3 drawing sheet.
Shortcut
A0 has an area of 1 sq. meter (841x1189 mm); halving the larger side gives subsequent paper sizes.
Common mistake
Confusing the size of A0 with smaller ISO paper sizes like A1 (594 x 841 mm) or misremembering standard paper dimensions.
Correct answer: A) 841 x 1189 mm