In SMAW, the flux on the electrode produces shielding gases and slag.

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Multiple Choice

In SMAW, the flux on the electrode produces shielding gases and slag.

Explanation:
In SMAW, the flux coating on the electrode has a dual protective role. As the arc heats the flux, it burns and decomposes to release shielding gases that blanket the weld area, protecting the molten metal from atmospheric contamination. At the same time, the flux forms a molten layer that becomes slag, which floats over the weld bead and then hardens to shield the cooling weld from oxidation and impurities. After welding, the slag is chipped away. Because the shielding in SMAW comes from the flux on the electrode rather than an external gas source, this statement is true.

In SMAW, the flux coating on the electrode has a dual protective role. As the arc heats the flux, it burns and decomposes to release shielding gases that blanket the weld area, protecting the molten metal from atmospheric contamination. At the same time, the flux forms a molten layer that becomes slag, which floats over the weld bead and then hardens to shield the cooling weld from oxidation and impurities. After welding, the slag is chipped away. Because the shielding in SMAW comes from the flux on the electrode rather than an external gas source, this statement is true.

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