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Welding block 3 exam Questions and
Correct Answers/ Latest Update / Already
Graded
When a constant voltage machine is used, a ______
Ans: D) Small percentage change in voltage leads to a larger
percentage change in current
For GMAW, the electrode wire is directed through in a(n) ____.
Ans: D) Welding gun
U-groove drive rolls in a wire feeder are used to feed _______ electrode
wires
Ans: A) Aluminum
A flowmeter measures and controls the ____ of the gas flow.
Ans: C) Volume
Which if the following determines the nozzle diameter selected for
GMAW
Ans: D) Application and joint access
All rights reserved © 2025/ 2026 |
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For gas metal arc welding on carbon and low-alloy steel, which
shielding gas produces the deepest penetration?
Ans: D) Carbon dioxide
Which AWS specification covers electrodes used for welding low-alloy
steels?
Ans: C) A5.28
In a GMAW electrode designation, S indicates _____
Ans: B) A solid electrode
When the final part of a GMAW electrode designation is a letter-
number combination, the electrode _______
Ans: B) Is a low-alloy electrode
An FCAW carbon steel electrode with improved toughness is indicated
by the letter _____ in the electrode
Ans: C) J
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An FCAW electrode has the flux and alloying materials on the outside.
Ans: False
GMAW and FCAW are semiautomatic welding processes
Ans: True
The FCAW process is used to weld nonferrous alloys.
Ans: False
A disadvantage of FCAW-S is high weld spatter.
Ans: True
When the electrode wire diameter is changed, the drive roll on the wire
feeder must also be changed
Ans: True
FCAW can be performed without a pressurized shielding gas.
Ans: True
All rights reserved © 2025/ 2026 |
Welding block 3 exam Questions and
Correct Answers/ Latest Update / Already
Graded
When a constant voltage machine is used, a ______
Ans: D) Small percentage change in voltage leads to a larger
percentage change in current
For GMAW, the electrode wire is directed through in a(n) ____.
Ans: D) Welding gun
U-groove drive rolls in a wire feeder are used to feed _______ electrode
wires
Ans: A) Aluminum
A flowmeter measures and controls the ____ of the gas flow.
Ans: C) Volume
Which if the following determines the nozzle diameter selected for
GMAW
Ans: D) Application and joint access
All rights reserved © 2025/ 2026 |
, Page |2
For gas metal arc welding on carbon and low-alloy steel, which
shielding gas produces the deepest penetration?
Ans: D) Carbon dioxide
Which AWS specification covers electrodes used for welding low-alloy
steels?
Ans: C) A5.28
In a GMAW electrode designation, S indicates _____
Ans: B) A solid electrode
When the final part of a GMAW electrode designation is a letter-
number combination, the electrode _______
Ans: B) Is a low-alloy electrode
An FCAW carbon steel electrode with improved toughness is indicated
by the letter _____ in the electrode
Ans: C) J
All rights reserved © 2025/ 2026 |
, Page |3
An FCAW electrode has the flux and alloying materials on the outside.
Ans: False
GMAW and FCAW are semiautomatic welding processes
Ans: True
The FCAW process is used to weld nonferrous alloys.
Ans: False
A disadvantage of FCAW-S is high weld spatter.
Ans: True
When the electrode wire diameter is changed, the drive roll on the wire
feeder must also be changed
Ans: True
FCAW can be performed without a pressurized shielding gas.
Ans: True
All rights reserved © 2025/ 2026 |
