API 570 Practice Test Questions With Verified Solutions

In severe refinery services which type of pipe is normally used? seamless Pressure applied inside a pipe creates stress in the pipe wall. These stresses are highest on which weld orientation? longitudinal weld Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal service. 10% for welded pipe, the normal thickness of under-tolerance is? .010 or 10 mils when qualifying a weld procedure the esential variables must: be recorded on both the WPS & PQR a pipe has a thickness designation of "40S". what does the "S" mean? stainless steel Generally socket-welded pipe is not used for nominal pipe sizes above: 2 inchesA propane piping system should be classified as? Class 1 According to ASME/ANSI B16.5 flanges from plate materials can only be used for: Blind flanges The corrosiveness of soils can be determined by measuring the soils: Resistivity Preheat should never be substituted for PWHT if: The PWHT was designed to prevent environmental cracking During welding, non-esential variables: Must be recorded only on the WPS and must be followed by the welder. During a hydrotest, all joints should be: left uninsulated ASME/ANSI B16.5 requires flanges to be: marked with the class rating.Graphitization of carbon steels begins to occur when metal temperatures exceed: 800 F During pipe fabrication who has overall responsibility for compliance with the code? owner/user Who has the responsibility to determine the