HomeASE B3 Auto Body Exam PrepQuestions 21–30
ASE B3 Auto Body Exam PrepPart 3 of 3

ASE B3 Auto Body Exam Prep Exam Questions & Answers 2026 (21–30)

ASE B3 Auto Body Exam Prep practice questions and answers 2026. Tap an option to test yourself — you'll see the correct answer and a plain-English explanation for every question. Free, no login.

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  1. Q21When preparing to repair a vehicle with Advanced Driver Assistance Systems (ADAS), a technician should:

    • APermanently disable all sensors
    • BIgnore calibration until painting is complete
    • CReplace all ADAS components with new ones
    • DDocument existing calibration settings
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    ✓ Correct answer: D. Document existing calibration settings

    Documenting the existing calibration settings before beginning repairs is essential to ensure proper restoration of ADAS systems after repair work is completed.

  2. Q22After a vehicle has been in a collision, scanning for diagnostic trouble codes should be performed:

    • AOnly if warning lights are illuminated
    • BOnly if the vehicle doesn't start
    • CBoth before and after repairs
    • DOnly after repairs
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    ✓ Correct answer: C. Both before and after repairs

    Scanning for diagnostic trouble codes should be performed both before and after repairs to identify all issues and verify they've been resolved.

  3. Q23When preparing to remove surface contaminants before body repair, which product should NOT be used on aluminum panels?

    • AIsopropyl alcohol
    • BSteel wool
    • CPlastic abrasive pads
    • DAluminum-specific cleaner
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    ✓ Correct answer: B. Steel wool

    Steel wool should not be used on aluminum panels as it can cause galvanic corrosion when steel particles embed in the aluminum.

  4. Q24Technician A says that undocumented previous repairs should be noted in the current repair documentation. Technician B says that verifying prior repairs is only necessary for warranty work. Who is right?

    • AA only
    • BB only
    • CBoth A and B
    • DNeither A nor B
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    ✓ Correct answer: A. A only

    Technician A is correct that undocumented previous repairs should always be noted in current repair documentation. Technician B is incorrect because verifying prior repairs is important for all repairs, not just warranty work.

  5. Q25The most appropriate position for a vehicle on a frame rack during preparation for structural repairs is:

    • ATilted 45 degrees to one side
    • BAs low as possible to the ground
    • CAngled with the front higher than the rear
    • DRaised to a comfortable working height
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    ✓ Correct answer: D. Raised to a comfortable working height

    Raising the vehicle to a comfortable working height is the most appropriate position for preparation because it allows proper visibility and access to damaged areas while maintaining worker ergonomics.

  6. Q26Before removing a damaged door, what should be done first?

    • ABreak the window glass
    • BApply penetrating oil to hinges
    • CDisconnect power and electrical connections
    • DRemove the interior door panel
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    ✓ Correct answer: C. Disconnect power and electrical connections

    Before removing a damaged door, the power and electrical connections should be disconnected first to prevent damage to wiring and electrical components.

  7. Q27When storing a removed bumper cover that will be reinstalled later, the technician should:

    • APlace it outside in the sun to maintain flexibility
    • BPlace it in a clean area away from foot traffic
    • CStack it with other removed parts
    • DLeave it leaning against the vehicle
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    ✓ Correct answer: B. Place it in a clean area away from foot traffic

    When storing a removed bumper cover for later reinstallation, it should be placed in a clean area away from foot traffic to prevent additional damage or contamination.

  8. Q28Which of the following is the correct first step in preparing to repair a vehicle with collision damage?

    • AReview the damage report and create a repair plan
    • BOrder all potentially needed parts
    • CBegin disassembling damaged areas
    • DTake the vehicle for a test drive
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    ✓ Correct answer: A. Review the damage report and create a repair plan

    Reviewing the damage report and creating a repair plan is the correct first step because it establishes what needs to be done before beginning any physical work.

  9. Q29When a vehicle with ADAS (Advanced Driver Assistance Systems) needs repair, which system requires special attention during preparation?

    • ACabin air filter
    • BEngine control module
    • CClimate control system
    • DForward-facing camera system
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    ✓ Correct answer: D. Forward-facing camera system

    The forward-facing camera system requires special attention during preparation because it often needs precise calibration after repairs to ensure proper operation of many ADAS functions.

  10. Q30Technician A says that cleaning adhesive residue from a surface can be done with a plastic scraper. Technician B says that a metal scraper works best on all surfaces. Who is right?

    • ABoth A and B
    • BNeither A nor B
    • CA only
    • DB only
    Show answer

    ✓ Correct answer: C. A only

    Technician A is correct because plastic scrapers safely remove adhesive without damaging surfaces. Technician B is incorrect because metal scrapers can damage painted surfaces and should not be used on all surfaces.

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