Q. According to AST M E709-95 and API, after removing magnetization of parts afterexamination, the residual magnetism shall not exceed (1 gauss = 0.0001 tesla): (Solved)
1. 3 × 10-4T (3gauss)
2. 4 × 10-4T (4 gauss)
3. 6 × 10-4T (6gauss)
4. 8 × 10-4T (8 gauss)
- a. 3 × 10-4T (3gauss)