POWER ENGINEERING 2A2 EXAM SCRIPT 2026
QUESTIONS ANSWERS
◉ What does the welding term "fault" mean? Answer: Is used to
denote defect but can also mean imperfection or flaw.
This term should not be used because it lacks definition in a welding
sense
◉ What does the welding term "imperfection" mean? Answer: It is
not defined by ANSI but should be understood to have the same
meaning as flaw.
◉ What are the three classes of weld discontinuities? Answer:
Dimensional
Structural
Base metal properties
◉ What are dimensional discontinuities? Answer: Any
inconsistencies or departures from specified dimensions in the weld,
weld joint, or parent material.
,◉ What are structural discontinuities? Answer: Flaws in the weld
deposit or heat affected zone.
Cracks
Lack of fusion
Pores
Non-metallic inclusions
◉ What are base metal discontinuities? Answer: Deficiencies in the
chemical, physical, or mechanical properties of the base metals
which may contribute to a defect in the weldment.
◉ What are some sights for weld failure? Answer: Highly restrained
tee and corner joints.
◉ What are the five basic weld joints? Answer: Butt
Tee
Lap
Edge
Corner
◉ What welds can cause areas of high stress? Answer: Misaligned
butt joints
, Steep transitions between thick and thin lapped material
◉ What does it mean when the book says...
"The degree of weld quality possible is not the same as the degree of
weld quality necessary." Answer: It means that the function imposed
on the weld determines the required degree of weld quality. For
example, welds for the pressure industry must conform to higher
standards because of the potential for danger.
◉ What are the 7 most common types of NDE? Answer: Visual
Inspection
Magnetic Particle Testing
Liquid Penetrant Testing
Ultrasonic Testing
Radiographic Testing
Acoustic Testing
Leak Testing
◉ What does the NDE term "flaw" mean? Answer: An imperfection
in the material that may or may not be harmful
QUESTIONS ANSWERS
◉ What does the welding term "fault" mean? Answer: Is used to
denote defect but can also mean imperfection or flaw.
This term should not be used because it lacks definition in a welding
sense
◉ What does the welding term "imperfection" mean? Answer: It is
not defined by ANSI but should be understood to have the same
meaning as flaw.
◉ What are the three classes of weld discontinuities? Answer:
Dimensional
Structural
Base metal properties
◉ What are dimensional discontinuities? Answer: Any
inconsistencies or departures from specified dimensions in the weld,
weld joint, or parent material.
,◉ What are structural discontinuities? Answer: Flaws in the weld
deposit or heat affected zone.
Cracks
Lack of fusion
Pores
Non-metallic inclusions
◉ What are base metal discontinuities? Answer: Deficiencies in the
chemical, physical, or mechanical properties of the base metals
which may contribute to a defect in the weldment.
◉ What are some sights for weld failure? Answer: Highly restrained
tee and corner joints.
◉ What are the five basic weld joints? Answer: Butt
Tee
Lap
Edge
Corner
◉ What welds can cause areas of high stress? Answer: Misaligned
butt joints
, Steep transitions between thick and thin lapped material
◉ What does it mean when the book says...
"The degree of weld quality possible is not the same as the degree of
weld quality necessary." Answer: It means that the function imposed
on the weld determines the required degree of weld quality. For
example, welds for the pressure industry must conform to higher
standards because of the potential for danger.
◉ What are the 7 most common types of NDE? Answer: Visual
Inspection
Magnetic Particle Testing
Liquid Penetrant Testing
Ultrasonic Testing
Radiographic Testing
Acoustic Testing
Leak Testing
◉ What does the NDE term "flaw" mean? Answer: An imperfection
in the material that may or may not be harmful
