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1. A pull type wire feeder is used for welding with soft and small diameter electrodes. Correct Answer: True 2. In a constant-voltage welding machine, arc length remains constant with changes in electrode extension. Correct Answer: True 3. A constant-voltage welding machine is commonly used for GMAW. Correct Answer: True 4. Alternating current is used for welding in the overhead position on mild steel. Correct Answer: False 5. The constant-voltage welding has a slightly sloping volt-ampere curve. Correct Answer: True 6. Inadequate gas shielding is one cause of porosity. Correct Answer: True 7. Poor arc starting is a symptom of a worn contact tip. Correct Answer: True 8. If the electrode extension is increased, welding current is decreased. Correct Answer: True

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GMAW-Equipment

1. A pull type wire feeder is used for welding with soft and small diameter electrodes.
Correct Answer: True



2. In a constant-voltage welding machine, arc length remains constant with changes in
electrode extension.
Correct Answer: True



3. A constant-voltage welding machine is commonly used for GMAW.
Correct Answer: True



4. Alternating current is used for welding in the overhead position on mild steel.
Correct Answer: False



5. The constant-voltage welding has a slightly sloping volt-ampere curve.
Correct Answer: True



6. Inadequate gas shielding is one cause of porosity.
Correct Answer: True



7. Poor arc starting is a symptom of a worn contact tip.
Correct Answer: True



8. If the electrode extension is increased, welding current is decreased.
Correct Answer: True

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