API 570 PRACTICE TEST 2026
WITH CORRECT VERIFIED
ANSWERS
when qualifying a weld procedure the esential variables must: - ANSWER --
be recorded on both the WPS & PQR
a pipe has a thickness designation of "40S". what does the "S" mean? -
ANSWER --stainless steel
In severe refinery services which type of pipe is normally used? - ANSWER --
seamless
Pressure applied inside a pipe creates stress in the pipe wall. These stresses are
highest on which weld orientation? - ANSWER --longitudinal weld
Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal
service. - ANSWER --10%
, for welded pipe, the normal thickness of under-tolerance is? - ANSWER --
.010 or 10 mils
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
During pipe fabrication who has overall responsibility for compliance with the
code? - ANSWER --owner/user
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
WITH CORRECT VERIFIED
ANSWERS
when qualifying a weld procedure the esential variables must: - ANSWER --
be recorded on both the WPS & PQR
a pipe has a thickness designation of "40S". what does the "S" mean? -
ANSWER --stainless steel
In severe refinery services which type of pipe is normally used? - ANSWER --
seamless
Pressure applied inside a pipe creates stress in the pipe wall. These stresses are
highest on which weld orientation? - ANSWER --longitudinal weld
Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal
service. - ANSWER --10%
, for welded pipe, the normal thickness of under-tolerance is? - ANSWER --
.010 or 10 mils
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
During pipe fabrication who has overall responsibility for compliance with the
code? - ANSWER --owner/user
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
