Exam (elaborations)
GAS METAL ARC WELDING GMAW MIG WELDING TEST 2025
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GAS METAL ARC WELDING GMAWMIG WELDING TEST 2025
Give a thorough definition and explanation of the GMAW process. ANSWER
joins metal by heating it with an electric arc created between the workpiece and
a filler metal electrode that is continually provided.
Other names for the gas metal arc welding technique include: The first
ANSWER is MIG welding.
Which of the following metals should be cut using GMAW? - ANSWER e)
Everything mentioned above
Enumerate the fundamental pieces of equipment needed to set up a GMAW
setup. ANSWER Wire speed and voltage
What is the impact of increasing stick out on penetration? ANSWER c) Will
result in less penetration
Adjusting the gun's inclination will: ANSWER a) alter the weld's penetration
and/or d) result in uneven wire feeding.
Explain the expected behaviour of GMAW equipment as the contact tip wears
out. ANSWER create turbulence in the gas flow, which leads to porosity and
subpar welds.
ANSWER d) Insufficient gas coverage can result from excessive spatter
accumulation in the gun nozzle.
Dirt and moisture on the wire electrode's surface could result in: - ANSWER a)
Porosity
A dirty liner's excessive drag is likely to result in: - ANSWER d) Liner and
contact tip damage
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