GATE ME 2024 Set 1 — Question 32

MCQ+1 / -0.33EasyWelding ProcessesJoiningManufacturing Processes

Manufacturing Processes → Joining → Welding Processes

Last updated 5 September 2026

Question

The most suitable electrode material used for joining low alloy steels using Gas Metal Arc Welding (GMAW) process is

Correct answer (C) low alloy steel Solution In Gas Metal Arc Welding (GMAW), also known as MIG welding, a consumable wire electrode is continuously fed into the weld pool. 1. The electrode material must be compatible with the base metal to ensure a sound joint with matching mechanical and chemical properties. 2. For welding low alloy steels, the electrode is typically a low alloy steel wire of similar composition. 3. Tungsten is used as a non-consumable electrode in Gas Tungsten Arc Welding (GTAW/TIG), not GMAW. 4. Copper and cadmium are not standard electrode materials for welding steel in this process. Therefore, low alloy steel is the most suitable electrode material. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (C) low alloy steel Solution In Gas Metal Arc Welding (GMAW), also known as MIG welding, a consumable wire electrode is continuously fed into the weld pool. 1. The electrode material must be compatible with the base metal to ensure a sound joint with matching mechanical and chemical properties. 2. For welding low alloy steels, the electrode is typically a low alloy steel wire of similar composition. 3. Tungsten is used as a non-consumable electrode in Gas Tungsten Arc Welding (GTAW/TIG), not GMAW. 4. Copper and cadmium are not standard electrode materials for welding steel in this process. Therefore, low alloy steel is the most suitable electrode material.

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