API 570 PRACTICE TEST QUESTIONS
WITH 100% CORRECT ANSWERS
Who has the responsibility to determine the extent of PMI performed? - Answer-
owner/user
An inservice process pipe should be classified as Class 1 when the % of H2S exceeds:
- Answer-3%
A welder becomes unqualified when he has not welded using the: - Answer-Process for
6 months
A PQR test coupon with a shell thickness of "T" can generally be used to qualify a wall
thickness on the WPS up to. - Answer-2T
a pipe has a thickness designation of "40S". what does the "S" mean? - Answer-
stainless steel
Generally socket-welded pipe is not used for nominal pipe sizes above: - Answer-2
inches
A propane piping system should be classified as? - Answer-Class 1
According to ASME/ANSI B16.5 flanges from plate materials can only be used for: -
Answer-Blind flanges
The corrosiveness of soils can be determined by measuring the soils: - Answer-
Resistivity
Preheat should never be substituted for PWHT if: - Answer-The PWHT was designed to
prevent environmental cracking
During welding, non-esential variables: - Answer-Must be recorded only on the WPS
and must be followed by the welder.
During a hydrotest, all joints should be: - Answer-left uninsulated
ASME/ANSI B16.5 requires flanges to be: - Answer-marked with the class rating.
Graphitization of carbon steels begins to occur when metal temperatures exceed: -
Answer-800 F
During pipe fabrication who has overall responsibility for compliance with the code? -
Answer-owner/user
WITH 100% CORRECT ANSWERS
Who has the responsibility to determine the extent of PMI performed? - Answer-
owner/user
An inservice process pipe should be classified as Class 1 when the % of H2S exceeds:
- Answer-3%
A welder becomes unqualified when he has not welded using the: - Answer-Process for
6 months
A PQR test coupon with a shell thickness of "T" can generally be used to qualify a wall
thickness on the WPS up to. - Answer-2T
a pipe has a thickness designation of "40S". what does the "S" mean? - Answer-
stainless steel
Generally socket-welded pipe is not used for nominal pipe sizes above: - Answer-2
inches
A propane piping system should be classified as? - Answer-Class 1
According to ASME/ANSI B16.5 flanges from plate materials can only be used for: -
Answer-Blind flanges
The corrosiveness of soils can be determined by measuring the soils: - Answer-
Resistivity
Preheat should never be substituted for PWHT if: - Answer-The PWHT was designed to
prevent environmental cracking
During welding, non-esential variables: - Answer-Must be recorded only on the WPS
and must be followed by the welder.
During a hydrotest, all joints should be: - Answer-left uninsulated
ASME/ANSI B16.5 requires flanges to be: - Answer-marked with the class rating.
Graphitization of carbon steels begins to occur when metal temperatures exceed: -
Answer-800 F
During pipe fabrication who has overall responsibility for compliance with the code? -
Answer-owner/user
