Quality Group Lead Interview Questions and Answers

Chemical used for penetration is typically a surfactant or wetting agent.

• Surfactants reduce surface tension and allow liquids to spread more easily.

• Examples include detergents, soaps, and emulsifiers.

• Wetting agents help liquids penetrate surfaces more effectively.

Weld bead offset can be caused by various factors such as incorrect welding parameters, poor fit-up, or improper torch angle.

• Incorrect welding parameters such as voltage, current, or travel speed

• Poor fit-up of the parts being welded

• Improper torch angle leading to uneven deposition of weld metal

• Inadequate cleaning of the base metal before welding

• Lack of operator skill or experience