provides an extra boost of current to help establish an arc when using electrodes that are hard to start

is the amount of electron flow through an electrical circuit

Torch technique is determined by metal ____ or by depth of bevel

The correct diameter filler metal is approximately _________ the thickness of the base metal

________ changes AC current from one level to another

When welding with DCEP, electron flow from the _______ to the _______

is used to remove slag after the weld is deposited

determines whether current flows into the workpieces or toward the electrode in a DC circuit

is caused by insufficient gas flow to the welding torch

When backhand welding, the torch angle is approximately ____° above the plate

The four basic welding positions are

The cylinder valve is cracked to remove debris (dust, chips) lodged in the outlet nozzle

has a very distinctive, nauseating odor

is caused by the flame going out suddenly on the torch

a check valve/flash arrestor allows the flow of liquid or gas in one direction only

The ______ welding process does not use shielding gas to protect the weld area. In this automated process, the electrode, arc, and weld pool are submerged in a granular flux that is poured on the base metal.

_____ arc welding consists of a spool of hollow wire filled with flux that is fed through the gun. This process does not require external shielding gas. It is commonly used to weld carbon, low-alloy and stainless steels, and cast iron.

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