Welding 2, Module 8 Exam Questions
and Answers 100% Solved | Graded A+
In the past, GTAW was called_________________. Today the,
the nonstandard TIG, is still used, including in the control
nomenclature marked on some welding machines. - ✔✔(TIG)
Tungsten Inert Gas, welding
A combination on the arc and the gas generates substantial levels
of __________________, which reacts with the oxygen in the
area of the weld. - ✔✔ultraviolet light or(UV)
UV radiation can ionize oxygen in the atmosphere near the weld,
which can lead to a rise in ozone and ___________________ -
✔✔nitrogen dioxide levels.
It is recommended that the walls of the work area be
_______________ with a paint that reduces reflections from the
UV light generated by the GTAW process. - ✔✔painted
1
©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
, ___________________ nonstandard term STRAIGHT
POLARITY, is almost always used for performing GTAW on
Ferrous and nonferrous materials. - ✔✔Direct Current Electrode
Negative (DCEN)
This high voltage, high frequency current creates a very stable arc
that is able to jump a gap of about ___________ - ✔✔1/2
inch(=13mm).
High frequency current has such low amperage, it creates
________________. - ✔✔very little heat
High Frequency has 2 purposes. to stabilize AC and allow DC arc
to be started without touching the _________________ to the
work. High voltage allows it to jump the gap between the two. -
✔✔tungsten electrode
Welders use ___________ to perform GTAW. The type of
welding current (DCEN, DCEP) depends on the type and
thickness of the BASE METAL. - ✔✔CC welding machines
2
©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
and Answers 100% Solved | Graded A+
In the past, GTAW was called_________________. Today the,
the nonstandard TIG, is still used, including in the control
nomenclature marked on some welding machines. - ✔✔(TIG)
Tungsten Inert Gas, welding
A combination on the arc and the gas generates substantial levels
of __________________, which reacts with the oxygen in the
area of the weld. - ✔✔ultraviolet light or(UV)
UV radiation can ionize oxygen in the atmosphere near the weld,
which can lead to a rise in ozone and ___________________ -
✔✔nitrogen dioxide levels.
It is recommended that the walls of the work area be
_______________ with a paint that reduces reflections from the
UV light generated by the GTAW process. - ✔✔painted
1
©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
, ___________________ nonstandard term STRAIGHT
POLARITY, is almost always used for performing GTAW on
Ferrous and nonferrous materials. - ✔✔Direct Current Electrode
Negative (DCEN)
This high voltage, high frequency current creates a very stable arc
that is able to jump a gap of about ___________ - ✔✔1/2
inch(=13mm).
High frequency current has such low amperage, it creates
________________. - ✔✔very little heat
High Frequency has 2 purposes. to stabilize AC and allow DC arc
to be started without touching the _________________ to the
work. High voltage allows it to jump the gap between the two. -
✔✔tungsten electrode
Welders use ___________ to perform GTAW. The type of
welding current (DCEN, DCEP) depends on the type and
thickness of the BASE METAL. - ✔✔CC welding machines
2
©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
