A long oil pipeline made of steel is suspected to have developed a scale on the inner surface
Q. A long oil pipeline made of steel is suspected to have developed a scale on the inner surface due to corrosion. Which of the following non-destructive techniques is the most suitable for detecting and quantifying such a defect?
(A) Dye penetrant test (B) Magnetic particle inspection
(C) Ultrasonic inspection (D) Acoustic emission