What should be done to determine the possibility of corrosion under insulation (CUI) existing?

What should be done to determine the possibility of corrosion under insulation (CUI) existing?

• A. Inspect the integrity of the insulation system for conditions that could lead to CUI.
• B. Inspect only the exterior painting of the pipe.
• C. Measure ambient humidity at the plant entrance.
• D. Replace insulation without prior assessment.

Answer: (A)