In the CSA 47.1 S classification test, the stop on the fillet side is located at how many inches in?

In the CSA 47.1 S classification test, the stop on the fillet side is located at how many inches in?

• A. 4.5 inches
• B. 3 inches
• C. 5 inches
• D. 2 inches

Answer: (A)

In this CSA 47.1 S classification test, the stop on the fillet side is set at 4.5 inches in from the root. This exact distance standardizes where the welder ends the test run, creating a consistent length of fillet to evaluate. Having a fixed stop location ensures the bead geometry, heat input, and fusion can be judged against the same reference across all tests. If the stop were placed much closer, there wouldn’t be enough weld length to properly assess technique and quality; if it were much farther, the tail of the weld could affect the inspection and the test limits. The 4.5-inch position strikes the right balance, giving a reliable, repeatable region for evaluation.

In this CSA 47.1 S classification test, the stop on the fillet side is set at 4.5 inches in from the root. This exact distance standardizes where the welder ends the test run, creating a consistent length of fillet to evaluate. Having a fixed stop location ensures the bead geometry, heat input, and fusion can be judged against the same reference across all tests. If the stop were placed much closer, there wouldn’t be enough weld length to properly assess technique and quality; if it were much farther, the tail of the weld could affect the inspection and the test limits. The 4.5-inch position strikes the right balance, giving a reliable, repeatable region for evaluation.