Question

On a 4 point fabric grading system (ASTM D5430) when the length of the defect is more than 3.2 inches but less than 6 inches, how many demerit points are given?

• A. 3 points
• B. 2 points
• C. 4 points
• D. 1 point

Hint:

Memorize the defect length categories and corresponding demerit points for the 4-point system.

Answer 1

The Correct Option is B

Step 1: Understanding the 4-Point System: The 4-point system (ASTM D5430) is a widely used method for inspecting and grading fabric quality. Defects are assigned penalty points (demerit points) based on their size and severity. The total number of penalty points per unit length (e.g., per 100 square yards) determines the fabric's grade.
Step 2: Defect Length and Points (4-Point System): In the 4-point system: Defect Length (inches) | Demerit points Up to 3 | 1 >3 and up to 6 | 2 >6 and up to 9 | 3 >9 | 4
Step 3 : Applying the information: Since the defect length is more than 3 inches but less than 6 inches, it falls into the second category, receiving 2 demerit points.