SENSE Module #9 Inspection and Testing Principles
Which weld discontinuity results from weld metal flowing out of the joint and laying on the base metal surface without fusing?
Overlap
Which of the following is not a type of weld joint?
Fillet
A weld discontinuity caused by the improper termination of the welding arc is referred to as
a crater crack.
Increasing the carbon content of steel decreases the likelihood of cracking problems.
false
Insufficient shielding gas coverage is likely to cause undercut.
false
Porosity is considered to be the most critical discontinuity
false
Underbead cracking can be caused by welding on wet or contaminated metal.
true
When welding with the GMAW process, incomplete fusion is most likely to occur when using the short circuiting transfer mode.
true
When welding with the GTAW process, tungsten inclusions can be caused by improper grinding of the electrode.
true
When welding with the SMAW process, slag inclusions can be caused by improper cleaning between weld beads.
true
The first inspection method should always be
visual.
A weld formed by progressing along the joint with a side-to-side motion is called a
weave bead.
The height of a weld above the base metal in a groove weld is the
weld reinforcement.
Undercut can be caused by a slow travel speed.
false
A weld having a triangular cross section which is applied to a T-joint, corner joint or lap joint is called a
fillet weld.
The portion of the joint where the two pieces to be joined come closest together is called the
joint root.
A discontinuity that results from the entrapment of gas within the weld is referred to as
porosity.
The pipe welding position in which the axis of the pipe lies fixed at a 45 0 angle is
6G.
Which weld metal discontinuity is generally considered to be the most severe?
Crack
The base material next to the weld that is not melted, but that undergoes structural and metallurgical changes is called the
Heat Affected Zone.
According to the AWS D1.1 code, if a welder continues to use a particular procedure, how long does his/her qualification remain in effect?I
Indefinitely, unless the ability of the welder is questioned.
Which discontinuity is most likely to be caused during the manufacturing of steel plate?
Lamination
With which welding process is it possible to have slag inclusions?
SMAW
Which one of the following test is a destructive test?
Tensile strength
The weld discontinuity caused by starting the welding arc outside the weld joint is referred to as
arc strike.
The most common type of destructive testing of welds is called
bend testing.
The location from which bend specimens are taken is determined
by the code being used.
A(n) ______ fillet weld has the same leg and size dimensions.
equal leg
A linear discontinuity has a width that is close in size to its length.
false
Excessive convexity occurs when the weld metal rolls over the weld toe.
false
Slag trapped in a weld is an example of
inclusions.
During a guided bend test, the welding inspector is observing
quality of fusion.
The problem occurring in weldments due to the non-uniform heating produced by welding is called
slag inclusion.
A weld produced by filling an elongated hole in an overlapping member, fusing it to the member beneath is called a
slot weld.
A weld used to build up thin surfaces and to provide a layer of corrosion protection and/or abrasion-resistance is called a(n)
surfacing weld.
Actions taken to insure good weld quality should always begin prior to welding.
true
The CWI examination contains three parts, each two (2) hours long.
true
A groove that is melted into the base metal adjacent to the toe of the weld and left unfilled is called
undercut.
A weld metal discontinuity caused when the welder fails to completely fill the weld groove is called
underfill.