CWI Part A Sample Exam Questions with
Correct Answers
What process uses a granular flux that can ne manually added to the weld pool? ESW
What are the acceptable methods for the control of raw materials? -Color coding
-Alphanumeric
-Location segregation
The direction of a flaw perpendicular to the axis of a weld is identified as? Transverse
What discontinuity is associated with the shrinkage stresses in the through thickness direction of
a thick plate? Lamellar tear
When can Oxygen be substituted for compressed air? Never
What welding process can be performed with a capacitor discharge? SW
,What does it mean if no information appears to the left of a groove weld symbol? The
weld is to be complete joint penetration
For Carbon steels, what is the hardness / tensile strength relation? Direct: increase the
hardness, you increase the tensile strength
Using preheat has what effect? Slower cooling rate and a wider heat effected zone
Can a lamellar tear be detected with Visual Testing (VT)? No
CO2 type laser welding processes can produce full penetration, single pass welds in material
approximately how thick? 1-1/4"
A groove weld symbol with no information appearing to the right means? The weld is to
be continuous throughout the entire joint
The 2G position in pipe welding has the axis of the pipe in what position? Vertical and
the plane of the weld is horizontal
, As the temperature of the base metal is decreased, what happens to the strength? Impact
strength decreases
The distance from the joint root perpendicular to a line drawn from toe to toe of a fillet weld is?
Theoretical throat
What test would be least effective for judging weld soundness in the as-welded condition?
Straight beam UT
The perception threshold of electrical current is? The level of amps where most people
feel a tingle
What is the major advantage of EBW? Dissimilar metal can be welded
The material that adheres to the bottom side of a cut made with the PAC process is known as?
Dross
The information appearing to the right of a weld symbol is? Length of the weld required
Correct Answers
What process uses a granular flux that can ne manually added to the weld pool? ESW
What are the acceptable methods for the control of raw materials? -Color coding
-Alphanumeric
-Location segregation
The direction of a flaw perpendicular to the axis of a weld is identified as? Transverse
What discontinuity is associated with the shrinkage stresses in the through thickness direction of
a thick plate? Lamellar tear
When can Oxygen be substituted for compressed air? Never
What welding process can be performed with a capacitor discharge? SW
,What does it mean if no information appears to the left of a groove weld symbol? The
weld is to be complete joint penetration
For Carbon steels, what is the hardness / tensile strength relation? Direct: increase the
hardness, you increase the tensile strength
Using preheat has what effect? Slower cooling rate and a wider heat effected zone
Can a lamellar tear be detected with Visual Testing (VT)? No
CO2 type laser welding processes can produce full penetration, single pass welds in material
approximately how thick? 1-1/4"
A groove weld symbol with no information appearing to the right means? The weld is to
be continuous throughout the entire joint
The 2G position in pipe welding has the axis of the pipe in what position? Vertical and
the plane of the weld is horizontal
, As the temperature of the base metal is decreased, what happens to the strength? Impact
strength decreases
The distance from the joint root perpendicular to a line drawn from toe to toe of a fillet weld is?
Theoretical throat
What test would be least effective for judging weld soundness in the as-welded condition?
Straight beam UT
The perception threshold of electrical current is? The level of amps where most people
feel a tingle
What is the major advantage of EBW? Dissimilar metal can be welded
The material that adheres to the bottom side of a cut made with the PAC process is known as?
Dross
The information appearing to the right of a weld symbol is? Length of the weld required
