Red Seal Welding Practice Exam

What kind of electrode is E7018 - A1?

1. High alloy electrode

2. Medium alloy electrode

3. Low alloy electrode

4. Non-alloy electrode

The correct answer is: Low alloy electrode

E7018 - A1 is a low alloy electrode. This electrode is commonly used for welding low alloy steels, which typically have less than 5% alloy content. Options A and B are incorrect because they refer to high and medium alloy electrodes, respectively. These types of electrodes are used for welding steels with higher alloy content. Option D is incorrect because E7018 - A1 is not a non-alloy electrode. It contains alloy material to provide better strength and toughness to the weld.