Test Your Code Knowledge – Volume 4.1

Question:  For a given vessel, a production impact test plate meeting the requirements of UG-84(i) for a Cat A joint is welded using a WPS containing three welding processes. All three of the welding processes on the WPS were used to make the weld deposit and the requirements of UG-84(h)(5) were met. If another Cat. A or Cat. B joint exists in this vessel and was welded using the same WPS, but only with one of the welding processes listed, is an additional production impact test plate required?