QC Inspection Engineer Interview Questions and Answers

The heat treatment process used in Sa516 grad 70 plate is called normalizing.

• Normalizing involves heating the plate to a temperature above its critical range and then cooling it in still air.

• This process helps to refine the grain structure and improve the mechanical properties of the plate.

• It also relieves internal stresses and enhances the plate's resistance to brittle fracture.

• Normalizing is typically performed after the plate has been formed and welded.

• The specific tempera...read more

No, Sa105 pipe does not have hard punch on the OD of the pipe.

• Sa105 pipe is a carbon steel pipe used in high-pressure and high-temperature applications.

• It is typically manufactured with smooth surfaces and no hard punches on the OD.

• Any irregularities on the OD of the pipe can affect its performance and integrity.

• Sa105 pipe is commonly used in the oil and gas industry for pipelines, refineries, and petrochemical plants.

The critical angle in UT process is the angle at which the sound wave is refracted instead of being reflected back.

• Critical angle is the angle at which the sound wave is refracted instead of being reflected back

• It is the angle at which the sound wave enters the material at a certain angle and is no longer able to continue through the material

• It is important to know the critical angle in UT process to ensure accurate inspection results

• For example, if the critical angle is not ...read more