Welding block 3 Exam UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
When a constant voltage machine is used, a ______ - CORRECT ANSWER 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) ____. - CORRECT
ANSWER D) Welding gun
U-groove drive rolls in a wire feeder are used to feed _______ electrode wires - CORRECT
ANSWER A) Aluminum
A flowmeter measures and controls the ____ of the gas flow. - CORRECT
ANSWER C) Volume
Which if the following determines the nozzle diameter selected for GMAW - CORRECT
ANSWER D) Application and joint access
For gas metal arc welding on carbon and low-alloy steel, which shielding gas produces the
deepest penetration? - CORRECT ANSWER D) Carbon dioxide
Which AWS specification covers electrodes used for welding low-alloy steels? - CORRECT
ANSWER C) A5.28
In a GMAW electrode designation, S indicates _____ - CORRECT ANSWER B) A
solid electrode
When the final part of a GMAW electrode designation is a letter-number combination, the
electrode _______ - CORRECT ANSWER B) Is a low-alloy electrode
, An FCAW carbon steel electrode with improved toughness is indicated by the letter _____ in
the electrode - CORRECT ANSWER C) J
An FCAW electrode has the flux and alloying materials on the outside. - CORRECT
ANSWER False
GMAW and FCAW are semiautomatic welding processes - CORRECT ANSWER True
The FCAW process is used to weld nonferrous alloys. - CORRECT ANSWER False
A disadvantage of FCAW-S is high weld spatter. - CORRECT ANSWER True
When the electrode wire diameter is changed, the drive roll on the wire feeder must also be
changed - CORRECT ANSWER True
FCAW can be performed without a pressurized shielding gas. - CORRECT
ANSWER True
In the FCAW-S process, a shielding gas prevents oxygen and nitrogen from getting into the
weld pool - CORRECT ANSWER False
In general, FCAW-G is used more often in indoor fabrication facilities. - CORRECT
ANSWER True
The only gas used by itself to weld carbon steel and low-alloy steels with FCAW-G is carbon
dioxide. - CORRECT ANSWER True
An argon-carbon dioxide mixture us used for welding thicker nonferrous metals - CORRECT
ANSWER False
ACTUAL QUESTIONS AND CORRECT
ANSWERS
When a constant voltage machine is used, a ______ - CORRECT ANSWER 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) ____. - CORRECT
ANSWER D) Welding gun
U-groove drive rolls in a wire feeder are used to feed _______ electrode wires - CORRECT
ANSWER A) Aluminum
A flowmeter measures and controls the ____ of the gas flow. - CORRECT
ANSWER C) Volume
Which if the following determines the nozzle diameter selected for GMAW - CORRECT
ANSWER D) Application and joint access
For gas metal arc welding on carbon and low-alloy steel, which shielding gas produces the
deepest penetration? - CORRECT ANSWER D) Carbon dioxide
Which AWS specification covers electrodes used for welding low-alloy steels? - CORRECT
ANSWER C) A5.28
In a GMAW electrode designation, S indicates _____ - CORRECT ANSWER B) A
solid electrode
When the final part of a GMAW electrode designation is a letter-number combination, the
electrode _______ - CORRECT ANSWER B) Is a low-alloy electrode
, An FCAW carbon steel electrode with improved toughness is indicated by the letter _____ in
the electrode - CORRECT ANSWER C) J
An FCAW electrode has the flux and alloying materials on the outside. - CORRECT
ANSWER False
GMAW and FCAW are semiautomatic welding processes - CORRECT ANSWER True
The FCAW process is used to weld nonferrous alloys. - CORRECT ANSWER False
A disadvantage of FCAW-S is high weld spatter. - CORRECT ANSWER True
When the electrode wire diameter is changed, the drive roll on the wire feeder must also be
changed - CORRECT ANSWER True
FCAW can be performed without a pressurized shielding gas. - CORRECT
ANSWER True
In the FCAW-S process, a shielding gas prevents oxygen and nitrogen from getting into the
weld pool - CORRECT ANSWER False
In general, FCAW-G is used more often in indoor fabrication facilities. - CORRECT
ANSWER True
The only gas used by itself to weld carbon steel and low-alloy steels with FCAW-G is carbon
dioxide. - CORRECT ANSWER True
An argon-carbon dioxide mixture us used for welding thicker nonferrous metals - CORRECT
ANSWER False
