Practice Test GeeksAWS Practice Test
← All AWS Flashcard Decks

Submerged Arc Welding (SAW) Flashcards

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

Read the first 7 Submerged Arc Welding (SAW) flashcards as text

  1. What is the typical operating current range for most single-wire Submerged Arc Welding applications?

    Answer: 300–1,500 amperes

    Single-wire SAW typically operates between 300 and 1,500 amperes, enabling the high heat input and deep penetration that characterize the process on heavy structural components.

  2. In SAW, the use of DCEP (electrode positive) versus DCEN (electrode negative) primarily affects:

    Answer: Penetration depth and deposition rate

    DCEP provides deeper penetration with moderate deposition, while DCEN provides a higher deposition rate with shallower penetration, allowing welders to optimize for their application.

  3. Which type of SAW flux is manufactured by fusing the raw materials at high temperature and then crushing?

    Answer: Fused flux

    Fused flux is produced by melting all ingredients together and then crushing the solidified mass to the desired particle size, resulting in a chemically homogeneous product with consistent composition.

  4. Excessive flux depth in SAW can cause which welding defect?

    Answer: Rough weld surface and gas pockets (porosity)

    If flux depth is too great, gases generated in the weld pool cannot escape, causing porosity; excess flux also inhibits arc visibility and can produce a rough, uneven bead surface.

  5. When qualifying a SAW welding procedure under AWS D1.1, which essential variable change requires requalification?

    Answer: A change from fused flux to bonded flux

    AWS D1.1 considers a change in flux type (e.g., from fused to bonded) an essential variable because it can affect weld metal mechanical properties and chemical composition.

  6. What is the function of the 'run-on' and 'run-off' tabs used in SAW of structural joints?

    Answer: To allow the arc to stabilize and reach full penetration before entering the production weld

    Run-on tabs allow the arc to start and stabilize before entering the actual weld joint, while run-off tabs allow the weld to terminate past the joint end, preventing craters and incomplete fusion at the weld ends.

  7. In SAW, the interpass temperature limit specified in a WPS is critical primarily to:

    Answer: Control heat input and maintain the required mechanical properties and HAZ characteristics

    Interpass temperature control limits cumulative heat input, which affects grain growth, HAZ width, and mechanical properties such as toughness and strength in the completed weldment.