The learner will identify the fundamentals of GTAW.
Contamination of the weld can occur from insufficient shielding gas, filler metal, and coolant leakage.
Contamination of the weld can occur from insufficient shielding gas, filler metal, and coolant leakage.
True
Contamination of the weld can occur from insufficient shielding gas, filler metal, and coolant leakage.
True
Which of the following is an advantage of GTAW?
Which of the following is an advantage of GTAW?
Excellent control of root pass weld penetration
Which of the following is an advantage of GTAW?
Excellent control of root pass weld penetration
Which of the following is an advantage of GTAW?
Which of the following is an advantage of GTAW?
Generally free of defects and discontinuities
Which of the following is an advantage of GTAW?
Generally free of defects and discontinuities
GTAW can be performed both with and without the use of filler metal.
True
GTAW can be performed both with and without the use of filler metal.
True
Arc length affects which of the following the most?
Arc length affects which of the following the most?
Width of the weld pool
Arc length affects which of the following the most?
Width of the weld pool
What type of welding power source does GTAW use?
CC
CC or Constant Current is used for GTAW.
What type of welding power source does GTAW use?
CC
CC or Constant Current is used for GTAW.
When using GTAW, deposition rates are higher than with GMAW.
False
When using GTAW, deposition rates are lower than with GMAW.
When using GTAW, deposition rates are higher than with GMAW.
False
When using GTAW, deposition rates are lower than with GMAW.
What is a potential problem unique to GTAW?
What is a potential problem unique to GTAW?
Tungsten inclusion
What is a potential problem unique to GTAW?
Tungsten inclusion
Arc voltage is affected by which of the following?
Arc voltage is affected by which of the following?
All of the above
Arc voltage is affected by which of the following?
All of the above
Which of the following is an advantage of GTAW?
Which of the following is an advantage of GTAW?
Typically no spatter is created
Which of the following is an advantage of GTAW?
Typically no spatter is created
GTAW can be used to weld almost any metal including some dissimilar metals.
True
GTAW can be used to weld almost any metal including some dissimilar metals.
True
Because of high shielding gas flow rates, it is easy to shield welds in drafty areas when using GTAW.
Because of high shielding gas flow rates, it is easy to shield welds in drafty areas when using GTAW.
False
GTAW uses relatively low shielding gas flow rates, making it difficult to shield welds from drafts.
Because of high shielding gas flow rates, it is easy to shield welds in drafty areas when using GTAW.
False
GTAW uses relatively low shielding gas flow rates, making it difficult to shield welds from drafts.
What does arc current (amperage) affect the most?
What does arc current (amperage) affect the most?
Weld penetration
What does arc current (amperage) affect the most?
Weld penetration
What shielding gas is most commonly used for GTAW?
What shielding gas is most commonly used for GTAW?
Argon
What does travel speed most greatly affect?
What does travel speed most greatly affect?
Width and penetration of the weld
What does travel speed most greatly affect?
Width and penetration of the weld
You have answered 5 of 10 questions correctly.
50%