API 577 Exam Questions And Answers Graded A+

API 577 Exam Questions And Answers Graded A+ How many welds does API 577 require to be radiographed? Zero. (The number of welds to RT is established by the primary code) Arc Blow The deflection of an arc from its normal path because of magnetic forces Arc Length The distance from the top of the welding electrode to the adjacent surface of the weld pool Autogenous Weld (one without filler metal) A fusion made without filler metal Backing A material or device placed against the backside of the joint, or at both sides of a weld in welding, to support and retain molten weld metal Defect A discontinuity or discontinuities that by nature or accumulated effect render a part or product unable to meet minimum applicable acceptance standards or specifications. The term designated reject ability Discontinuity An interruption of the typical structure of a material, such as a lack of homogeneity in its mechanical, metallurgical, or physical characteristics. A discontinuity is not necessarily a defect Inclusion Entrapped foreign solid material, such as slag, flux, tungsten, or oxide Undercut A groove melted into the base metal adjacent to the weld toe or weld root and left I filled by weld metal Corrective action of non-conformance Action is based on nature of non-conformance Which welding process is most widely used SMAW Describe the SMAW process Arc between covered electrode and weld pool. Heat of arc comes from tip of a consumable covered electrode. Shielding comes from decomposition of the electrode coating Basic functions of the SMAW electrode coating