Practice Test Geeks(SAW) Submerged Arc Welding Certification Practice Test
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Equipment Setup & Operation Flashcards

7 cards from real SAW practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Equipment Setup & Operation flashcards as text

  1. What is the primary function of the flux hopper in a SAW system?

    Answer: To store and feed granular flux onto the weld joint ahead of the arc

    The flux hopper stores granular flux and feeds it through a nozzle onto the joint, burying the arc to protect the weld pool.

  2. When setting up a SAW machine for a new joint configuration, which parameter should typically be adjusted FIRST?

    Answer: Wire feed speed (amperage)

    Wire feed speed controls amperage and is the primary variable that determines heat input, so it is set first before fine-tuning voltage and travel speed.

  3. A SAW tractor unit is equipped with an oscillation attachment. What is the main purpose of oscillating the electrode?

    Answer: To widen the bead and improve fusion on wide groove joints

    Electrode oscillation widens the weld bead to fill wide grooves or produce weave beads, improving side-wall fusion.

  4. Which contact tip material is most commonly used in SAW torches handling high current levels above 1000 A?

    Answer: Chromium-zirconium copper alloy

    Chromium-zirconium copper alloys offer high electrical conductivity combined with superior heat resistance needed at very high amperages.

  5. When using a tandem SAW setup, the leading electrode is typically operated with:

    Answer: DCEP to maximize penetration

    The leading electrode in tandem SAW uses DCEP (reverse polarity) to achieve maximum penetration into the base metal.

  6. What happens if the contact-tip-to-work distance (CTWD) is too short in SAW?

    Answer: The wire extension is too short, increasing current and risk of burnback

    Too short a CTWD reduces electrical stick-out, concentrating heat at the arc rather than preheating the wire, and increases the risk of the arc burning back into the contact tip.

  7. A flux recovery system on a SAW installation is designed to:

    Answer: Separate slag from unfused flux and return unfused flux to the hopper

    Flux recovery systems vacuum up flux after welding, separate reusable unfused flux from slag, and return it to the hopper to reduce waste.