1|Page
CWB WELDING INSPECTOR LEVEL 2 EXAM NEWEST ACTUAL
EXAM COMPLETE 200 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY
GRADED A+||NEWEST VERSION!!!
an arc made between the electrode and constricting nozzle,
excluding the workpiece from the electrical circuit - ANSWER-
non transferred arc
A welding arc is formed when ___ ___ is forced to flow across a
gap between two electrodes at a relatively low voltage -
ANSWER-high current
power sources can be classified as constant current, constant
voltage or _____ - ANSWER-both
thee volt-ampere curve of a constant current pwoer source is
described as _____ - ANSWER-drooping
In any arc welding setup, there is a continuous drop in ____
from the lower-most point of the contact between the contact
tip and the wire, to the molten weld pool or workpiece -
ANSWER-voltage
,2|Page
There is a jet-like flow of ___ ___ in the arc column which gives
it some stiffness and force. Allow the welder to manipulate and
direct molten metal at the desired location - ANSWER-ionized
gases
___ ___ is a critical and controllable parameter, which is directly
related to the arc voltage - ANSWER-Arc length
Arc blow is likely to cause what type of weld flaws? - ANSWER-
incomplete fusion
Since pinch force on the electrode increase with the square of
the current, smaller and smaller droplets are detached as ____
increases - ANSWER-current
_____ ______ can have a significant effect on the shape of the
weld bead and depth of penetration - ANSWER-Electrode
polarity
In GTAW, DCEN welding, ____ percent of the heat is directed to
where the arc meets the workpiece - ANSWER-70
,3|Page
In GTAW, DCEP welding, 70 percent of the heat is directed via
current flow to where the arc meets the ____ - ANSWER-
Electrode
In GTAW setup up for DCEN, what term best describe the
tungsten electrode in the welding circuit? - ANSWER-Cathode
When polarity is reversed (DCEP) the _____ becomes the
cathode - ANSWER-workpiece
The weld pool cannot easily emit electrons because the molten
weld pool is at a much lower ______ than the tungsten and will
resist the release of electrons - ANSWER-Temperature
GTAW setup for DCEN produces welds with penetration that can
be described as what? - ANSWER-Deep and narrow
GTAW setup for DCEP produces welds with penetration that can
be described as what? - ANSWER-shallow and wide
GTAW setup for AC produces welds with penetration that can
be described as what compared to DCEP/DCEN? - ANSWER-
medium
, 4|Page
The heat balance of consumable electrode processes as in
SMAW differs from that of non-consumable tungsten arcs. A
greater amount of heat is generated at the _____ rather than
the ____. - ANSWER-cathode, anode
When using GMAW, ____ is the polarity of choice as it leads to
greater heat generation at the workpiece - ANSWER-DCEP
what kind of stainless steel is still susceptible to hydrogen
induced cold cracking? - ANSWER-Martensitic
What does HICC stand for? - ANSWER-hydrogen induced cold
cracking
What are the two main reasons transformer/rectifier power
sources are becoming less than popular than inverter types? -
ANSWER-weight and power consumption
What relatively new welding polarity configuration can achieve
reduced heat input and lower distortion while still achieving
good penetration and fusion, and also reliably weld in all
positions? - ANSWER-Pulsed DCEN
CWB WELDING INSPECTOR LEVEL 2 EXAM NEWEST ACTUAL
EXAM COMPLETE 200 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY
GRADED A+||NEWEST VERSION!!!
an arc made between the electrode and constricting nozzle,
excluding the workpiece from the electrical circuit - ANSWER-
non transferred arc
A welding arc is formed when ___ ___ is forced to flow across a
gap between two electrodes at a relatively low voltage -
ANSWER-high current
power sources can be classified as constant current, constant
voltage or _____ - ANSWER-both
thee volt-ampere curve of a constant current pwoer source is
described as _____ - ANSWER-drooping
In any arc welding setup, there is a continuous drop in ____
from the lower-most point of the contact between the contact
tip and the wire, to the molten weld pool or workpiece -
ANSWER-voltage
,2|Page
There is a jet-like flow of ___ ___ in the arc column which gives
it some stiffness and force. Allow the welder to manipulate and
direct molten metal at the desired location - ANSWER-ionized
gases
___ ___ is a critical and controllable parameter, which is directly
related to the arc voltage - ANSWER-Arc length
Arc blow is likely to cause what type of weld flaws? - ANSWER-
incomplete fusion
Since pinch force on the electrode increase with the square of
the current, smaller and smaller droplets are detached as ____
increases - ANSWER-current
_____ ______ can have a significant effect on the shape of the
weld bead and depth of penetration - ANSWER-Electrode
polarity
In GTAW, DCEN welding, ____ percent of the heat is directed to
where the arc meets the workpiece - ANSWER-70
,3|Page
In GTAW, DCEP welding, 70 percent of the heat is directed via
current flow to where the arc meets the ____ - ANSWER-
Electrode
In GTAW setup up for DCEN, what term best describe the
tungsten electrode in the welding circuit? - ANSWER-Cathode
When polarity is reversed (DCEP) the _____ becomes the
cathode - ANSWER-workpiece
The weld pool cannot easily emit electrons because the molten
weld pool is at a much lower ______ than the tungsten and will
resist the release of electrons - ANSWER-Temperature
GTAW setup for DCEN produces welds with penetration that can
be described as what? - ANSWER-Deep and narrow
GTAW setup for DCEP produces welds with penetration that can
be described as what? - ANSWER-shallow and wide
GTAW setup for AC produces welds with penetration that can
be described as what compared to DCEP/DCEN? - ANSWER-
medium
, 4|Page
The heat balance of consumable electrode processes as in
SMAW differs from that of non-consumable tungsten arcs. A
greater amount of heat is generated at the _____ rather than
the ____. - ANSWER-cathode, anode
When using GMAW, ____ is the polarity of choice as it leads to
greater heat generation at the workpiece - ANSWER-DCEP
what kind of stainless steel is still susceptible to hydrogen
induced cold cracking? - ANSWER-Martensitic
What does HICC stand for? - ANSWER-hydrogen induced cold
cracking
What are the two main reasons transformer/rectifier power
sources are becoming less than popular than inverter types? -
ANSWER-weight and power consumption
What relatively new welding polarity configuration can achieve
reduced heat input and lower distortion while still achieving
good penetration and fusion, and also reliably weld in all
positions? - ANSWER-Pulsed DCEN
