Red Seal Welding Practice Exam

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Enhance your skills for the Red Seal Welding Exam. Get ready with multiple choice questions and in-depth explanations. Achieve your certification with confidence!

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What does the letter 'C' stand for in an ER70C-X electrode?

Carbon
Composite filler metal
Compact
Cobalt

The correct answer is: Composite filler metal

The letter 'C' in an ER70C-X electrode stands for "composite filler metal." This type of electrode is a combination of pure metal powder and flux, making it different from other pure metal electrodes such as ER1400. Option A, carbon, is incorrect because carbon is not the main component of this type of electrode. Option C, compact, is incorrect because compactness does not describe the composition of the electrode. Option D, cobalt, is also incorrect as cobalt is not the main component of this type of electrode.