API 570 Certification Open Book Exam
with Verified Answers
Hydrotest - ✔✔Pressure test for underground pipelines.
Test Pressure - ✔✔Standard pressure for hydrotest is 200 psig.
Minimum Test Pressure - ✔✔Pressure must be at least 195 psig.
Class 300 Flange - ✔✔Flange rated for 300 psi service.
Design Temperature - ✔✔Maximum temperature for material use.
ASTM A217 gr. C12 - ✔✔Material specification for high-temperature service.
Maximum Allowed Pressure - ✔✔135 psig for Class 300 at 950 °F.
Pipe Retirement Thickness (tmin) - ✔✔Minimum thickness before replacement, 0.218 inches.
Corrosion Allowance - ✔✔Extra thickness to account for corrosion, 0.125 inches.
Minimum Pipe Thickness - ✔✔Calculated thickness after adjustments for tolerances.
SMAW Process - ✔✔Shielded Metal Arc Welding, a welding technique.
Elongated Slag Inclusion - ✔✔Maximum length allowed is 0.392 inches.
, Boiler Feed Water Corrosion - ✔✔Prevented by maintaining magnetite layer.
Liquid Penetrant Procedure - ✔✔Must be qualified for exotic materials.
Welding Procedure Qualification Record (PQR) - ✔✔Document detailing welding procedure
qualifications.
A-Number - ✔✔Identifier for welding materials and procedures.
Peening Prohibition - ✔✔Prohibited on root and final passes.
Corner Radius Requirement - ✔✔Minimum radius for rectangular insert plate is unspecified.
Radiograph Density - ✔✔Minimum density allowed at IQI is 2.00.
Acidic Sour Water Corrosion - ✔✔Copper alloys generally resistant to this corrosion.
CUI Inspections - ✔✔Consider performing at 50% of non-damaged areas.
Relief Device Set Pressure - ✔✔Set no higher than 120% of design pressure.
WFMPT Examination - ✔✔Requires darkened area for black light warm-up.
Hydrotest Pressure for Class 300 - ✔✔Maximum allowed is 1080 psig at 600 °F.
Preheat Temperature Requirement - ✔✔Required for A106 gr. B pipe with low carbon.
with Verified Answers
Hydrotest - ✔✔Pressure test for underground pipelines.
Test Pressure - ✔✔Standard pressure for hydrotest is 200 psig.
Minimum Test Pressure - ✔✔Pressure must be at least 195 psig.
Class 300 Flange - ✔✔Flange rated for 300 psi service.
Design Temperature - ✔✔Maximum temperature for material use.
ASTM A217 gr. C12 - ✔✔Material specification for high-temperature service.
Maximum Allowed Pressure - ✔✔135 psig for Class 300 at 950 °F.
Pipe Retirement Thickness (tmin) - ✔✔Minimum thickness before replacement, 0.218 inches.
Corrosion Allowance - ✔✔Extra thickness to account for corrosion, 0.125 inches.
Minimum Pipe Thickness - ✔✔Calculated thickness after adjustments for tolerances.
SMAW Process - ✔✔Shielded Metal Arc Welding, a welding technique.
Elongated Slag Inclusion - ✔✔Maximum length allowed is 0.392 inches.
, Boiler Feed Water Corrosion - ✔✔Prevented by maintaining magnetite layer.
Liquid Penetrant Procedure - ✔✔Must be qualified for exotic materials.
Welding Procedure Qualification Record (PQR) - ✔✔Document detailing welding procedure
qualifications.
A-Number - ✔✔Identifier for welding materials and procedures.
Peening Prohibition - ✔✔Prohibited on root and final passes.
Corner Radius Requirement - ✔✔Minimum radius for rectangular insert plate is unspecified.
Radiograph Density - ✔✔Minimum density allowed at IQI is 2.00.
Acidic Sour Water Corrosion - ✔✔Copper alloys generally resistant to this corrosion.
CUI Inspections - ✔✔Consider performing at 50% of non-damaged areas.
Relief Device Set Pressure - ✔✔Set no higher than 120% of design pressure.
WFMPT Examination - ✔✔Requires darkened area for black light warm-up.
Hydrotest Pressure for Class 300 - ✔✔Maximum allowed is 1080 psig at 600 °F.
Preheat Temperature Requirement - ✔✔Required for A106 gr. B pipe with low carbon.
