Principles of Shielded Metal Arc Welding

What does the acronym SMAW stand for?

a: Shielded Metal Arc Welding Explanation

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b: Shielded Magnetic Arc Welding Explanation

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c: Strong Magnetic Arc Welding Explanation

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d: Solid Metal Arc Welding Explanation

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What type of joint can be made using SMAW welding?

a: Butt joint Explanation

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b: Lap joint Explanation

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c: T-joint Explanation

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d: All of the above Explanation

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What type of electrode is used in SMAW welding?

a: Flux-cored Explanation

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b: Stick Explanation

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c: Wire Explanation

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d: Tungsten Explanation

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What type of power source is used in SMAW welding?

a: DC Explanation

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b: AC Explanation

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c: Both A & B Explanation

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d: None of the above Explanation

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What is the purpose of the flux coating on the electrode in SMAW welding?

a: To protect the weld from oxidation Explanation

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b: To provide a shielding gas Explanation

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c: To improve the mechanical properties of the weld Explanation

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d: All of the above Explanation

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What type of metal can be welded using SMAW?

a: Steel Explanation

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b: Aluminium Explanation

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c: Copper Explanation

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d: All of the above Explanation

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What is the major advantage of SMAW welding?

a: Speed Explanation

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b: Portability Explanation

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c: Automation Explanation

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d: All of the above Explanation

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During DC SMAW, which polarity concentrates more heat on the electrode

a: Direct Current straight polarity Explanation

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b: Direct current reverse polarity Explanation

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c: Polarity does not matter Explanation

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What type of groove is constructed for vertical position welding?

a: V shaped groove Explanation

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b: No groove Explanation

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c: U shaped groove Explanation

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Which of the following defect can result from using wet or damp electrode?

a: Lack of fusion Explanation

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b: porosity Explanation

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c: slag inclusion Explanation

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d: Undercut Explanation

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