Senior Welding Engineer Interview Questions and Answers

PQR is a Procedure Qualification Record which documents the welding parameters used to qualify a welding procedure. WPQ is a Welder Performance Qualification which certifies a welder's ability to produce sound welds.

• PQR is a document that specifies the welding parameters used during the qualification of a welding procedure

• WPQ is a certification that confirms a welder's ability to produce sound welds according to a qualified welding procedure

• PQR is used to establish the weldin...read more

Essential variables are key parameters in welding procedures that must be strictly controlled to ensure the quality and integrity of the weld.

• Essential variables are critical parameters that directly affect the quality of the weld.

• They must be strictly controlled and monitored during the welding process.

• Examples of essential variables include welding current, voltage, travel speed, preheat temperature, and interpass temperature.