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18 Cards in this Set
- Front
- Back
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The composition of the base metal is the major factor to consider when selecting: |
Answer: Filler materials |
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Which organizations have written specifications for wire feed filler metals? |
Answer: AWS & CSA |
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When added to ER70S-2, silicon, aluminum and manganese are used as: |
Answer: deoxidizers |
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Cast refers to the: |
Answer: circle formed by one wrap of the wire |
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When wires are packaged in sealed containers, it is mainly to protect them from: |
Answer: moisture and contamination |
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Improperly cleaned wires most often produce welds with: |
Answer: porosity |
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Filler metals containing additional deoxidizers are intended for use on: |
Answer: moderately rusty low-carbon steels. |
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What does G stand for in the CSA FCAW electrode classification E492T-G? |
Answer: general classification for electrodes not covered under any other classification |
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In the GMAW short-circuiting transfer mode, metal is transferred: |
Answer: when the electrode comes in contact with the weld pool |
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Very fine droplets metal transferred across the arc in axial fashion describes what mode of metal transfer? |
Answer: spray |
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Which GMAW mode of metal transfer is best suited for welding thin metals? |
Answer: short-circuiting arc transfer |
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Which MCAW mode of metal transfer is best suited for welding metals? |
Answer: pulsed arc transfer |
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A pull type welding gun is designed to be used with: |
Answer: soft wires |
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What type of wire drive system allows greater machine-to-work distances? |
Answer: push-pull system |
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When using GMAW on mild steel, the most popular type of wire feed system is a: |
Answer: push system |
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In addition to maximizing operator comfort, what is the purpose of the curved neck on welding gun? |
Answer: It ensures proper electrical transfer to the wire electrode |
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The welding cable assembly is constructed to: |
Answer: supply current, gas and wire to the welding gun |
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What is the main purpose of the contact tube? |
Answer: It transfers the welding current to the filler wire |
