Practice Test Geeks(SAW) Submerged Arc Welding Certification Practice Test
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Transmission & Drivetrain Systems 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 Transmission & Drivetrain Systems flashcards as text

  1. A transmission bell housing weld joint shows incomplete fusion on the root pass when using SAW. The most effective corrective action is:

    Answer: Increase wire feed speed

    Increasing wire feed speed raises amperage, which increases penetration and delivers more heat to fuse the root of the joint.

  2. When SAW hard-facing a worn splined shaft, the welding sequence should proceed:

    Answer: Circumferentially in balanced opposing passes

    Balanced circumferential passes on opposing sides equalize thermal stresses and minimize axial bowing or warping of the shaft.

  3. Which SAW flux type is classified as agglomerated and offers the primary advantage of:

    Answer: Ability to add alloying elements to the weld pool

    Agglomerated fluxes are bonded with a binder and can incorporate metallic powders or alloy additions that transfer into the weld deposit.

  4. A transfer case weld requires a notch toughness of 20 ft-lb at -40°F. Which alloying element in the SAW wire most improves low-temperature toughness?

    Answer: Nickel

    Nickel additions to SAW wire substantially lower the ductile-to-brittle transition temperature, improving Charpy impact values at sub-zero temperatures.

  5. During SAW of a thick drive axle housing, the procedure calls for a specific flux depth range. Too shallow a flux depth primarily risks:

    Answer: Arc flash and spatter exposure

    Insufficient flux depth fails to fully submerge the arc, allowing visible arc flash and generating spatter that defeats the process's characteristic cleanliness.

  6. Which destructive test is most commonly specified to verify fusion quality in SAW welds on drivetrain housings?

    Answer: Guided bend test

    The guided bend test physically bends a weld coupon to a specified radius, revealing any lack-of-fusion or other internal discontinuities by cracking.

  7. A SAW procedure for drivetrain components lists an 'as-welded' hardness limit of 350 HV maximum in the HAZ. This limit primarily controls:

    Answer: Risk of hydrogen-assisted cracking

    Hardness above approximately 350 HV in the HAZ indicates a martensitic microstructure that is susceptible to hydrogen-induced cracking.