26. Which of the following is NOT explicitly mentioned as a step in failure analysis? a) Description of the failure situation b) Visual examination c) Testing for radiation damage d) Chemical design analysis 27. Metallographic sections are typically taken through which areas? a) Contaminated regions only b) Fracture surfaces and other locat c) Clean and polished surfaces d) Areas with the most corrosion

26. The correct answer is c) Testing for radiation damage. Failure analysis typically involves a description of the failure situation, visual examination, and chemical design analysis, but not necessarily testing for radiation damage.<br /><br />27. The correct answer is b) Fracture surfaces and other locations. Metallographic sections are typically taken through fracture surfaces and other locations to gain a comprehensive understanding of the material's microstructure and the cause of failure.