Hisco Interview Questions and Answers

DPT stands for Dye Penetrant Testing, a non-destructive testing method used to detect surface-breaking defects in materials.

• DPT is commonly used in industries such as aerospace, automotive, and manufacturing.

• The process involves applying a liquid dye penetrant to the surface of a material, allowing it to seep into any surface-breaking defects.

• After a developer is applied, the excess penetrant is removed, and any defect...read more

Undercut in NDT can be found by visually inspecting the weld for a groove or depression along the weld toe.

• Visually inspect the weld for any groove or depression along the weld toe

• Use a magnifying glass or microscope for closer examination

• Perform a dye penetrant test to highlight any undercut

• Ultrasonic testing can also be used to detect undercut

• Consult relevant codes and standards for acceptance criteria