SOLAS Metal Fabrication Practice Questions - SOLAS Metal Fabrication Apprenticeship (QQI Advanced Certificate Craft, NFQ Level 6) Exam

Why must low-hydrogen (basic-coated) MMA electrodes such as E7018 be stored in a heated oven or quiver?

To increase their melting rate To keep the flux coating dry and avoid hydrogen pick-up To soften the core wire for easier striking To improve their electrical conductivity

Correct Answer:

To keep the flux coating dry and avoid hydrogen pick-up

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