Welder Red Seal · Question
A welder is assigned to perform a vertical-up groove weld (3G position) on a structural beam using SMAW. They start with an E7018 electrode, but find the puddle too fluid and difficult to control from washing out. What adjustment and electrode type would typically improve control in vertical-up welding for this scenario?
For vertical-up welding with E7018, the puddle can be challenging to control due to gravity. Decreasing the amperage incrementally reduces the heat input, allow
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Question: A welder is assigned to perform a vertical-up groove weld (3G position) on a structural beam using SMAW. They start with an E7018 electrode, but find the puddle too fluid and difficult to control from washing out. What adjustment and electrode type would typically improve control in vertical-up welding for this scenario?
Answer options:
- Increase amperage and use E6013. ✅ Decrease amperage incrementally with E7018.
- Switch to E6010 and maintain amperage.
- Switch to E7014 and decrease amperage.
Correct answer: Decrease amperage incrementally with E7018.
Explanation: For vertical-up welding with E7018, the puddle can be challenging to control due to gravity. Decreasing the amperage incrementally reduces the heat input, allowing the puddle to solidify faster and become more manageable without compromising the electrode's low-hydrogen properties and strength.
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