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GMAW Review Questions and Answers Fully Solved 100%
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An inactive gas commonly used as shielding. _____ is much heavier than air, so it effectively shields the weld area. - ️️argon An undesirable depression in the weld bead. A _____ can cause cracking if it is not properly filled. - ️️crater An active gas commonly used as shielding for GMA...

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  • November 9, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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GMAW Review
An inactive gas commonly used as shielding. _____ is much heavier than air, so it
effectively shields the weld area. - ✔️✔️argon

An undesirable depression in the weld bead. A _____ can cause cracking if it is not
properly filled. - ✔️✔️crater

An active gas commonly used as shielding for GMAW. ____ ______is inexpensive but
yields a violent arc. - ✔️✔️carbon dioxide


The non-profit society that regulates the industrial standards for welding and promotes
the welding industry. - ✔️✔️American Welding Society

A measurement that indicates the amount of current flowing in a circuit, which is
measured in amperes. GMAW _____ is determined by wire speed. - ✔️✔️amperage

A steel that consists of iron and carbon, without any additional materials. - ✔️✔️carbon
steel

A welding machine that maintains a constant voltage setting while compensating for
changes in amperage. - ✔️✔️constant voltage welder

A gas that reacts with other elements. GMAW uses both active and inactive gas as
shielding. - ✔️✔️active gas

An electrode that conducts electricity to the arc but also melts into the weld as a filler
metal. - ✔️✔️consumable electrode

The device located inside the welding gun that conducts electricity to the electrode. The
_____ ___ is usually made of copper. - ✔️✔️contact tip

A metal's ability to resist attack by other elements and chemicals. - ✔️✔️corrosion
resistance

The device that indicates the amount of shielding gas present in the gas cylinder. -
✔️✔️cylinder pressure gauge

An abbreviation for direct current electrode positive. _____ is another way of expressing
direct current with reverse polarity. - ✔️✔️DCEP

, A material that removes oxygen from the molten weld puddle and arc. Oxygen can ruin
a weld bead. - ✔️✔️deoxidizer

The rate at which an electrode melts into the molten weld puddle to form a weld. -
✔️✔️deposition rate

A term used in industry for the backhand technique. - ✔️✔️drag angle

A metal's ability to be drawn, stretched, or formed without breaking. - ✔️✔️ductility

The opposition to current flow. Excessive stickout causes increased _________
___________ between the electrode and workpiece. - ✔️✔️electrical resistance

An imaginary line through the center of the electrode. - ✔️✔️electrode axis

A measurement of the thickness of the electrode. GMAW has the thinnest _________
_________, which allows it to weld thin base metals. - ✔️✔️electrode diameter

The distance from the end of the contact tip to the end of the electrode. -
✔️✔️electrode extension

The insulated lining that surrounds the wire electrode and supports it from the wire
feeder to the contact tip. - ✔️✔️electrode liner

A weld that solidifies quickly. ____ ________ welds are more easily performed out-of-
position, and they reduce the risk of a leaking weld puddle. - ✔️✔️fast-freeze weld

A metal that contains iron. Steel is the most popular _________ metal. - ✔️✔️ferrous
metal

Metal deposited into the weld that often adds strength and mass to the welded joint. The
wire electrode for GMAW is the ______ ______. - ✔️✔️filler metal

Moving the electrode along the workpiece in the direction of welding. - ✔️✔️forehand
technique or push

An external device used to house shielding gas. Shielding gas flows from the ___
________, to the gas hose, to the welding gun. - ✔️✔️gas cylinder

The device inside the welding gun through which shielding gas flows. - ✔️✔️gas
diffuser

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