• 55 questions

ASE Practice Test B2 & B3: the B3 Non-Structural Test

Unofficial non-structural damage repair practice in the six content areas of ASE's B3 test, every answer with its source.

A hit on the front of a fender leaves a buckle near the door edge. What kind of damage is the buckle?

Pick an answer, then press Check answer. Then you see Correct or Not quite, with the reason. Keys: A to D pick, Enter checks.

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Exam mode: 55 questions, 90 minutes.

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Unofficial practice questions, not affiliated with the National Institute for Automotive Service Excellence (ASE). Bank checked October 13, 2026.

Next step The B2 half: painting and refinishingASE B4 structural repair practice

All 55 questions

Preparation 7

  • A technician needs the gloves and respirator called for by a seam sealer. Which section of its safety data sheet covers that? 29 CFR 1910.1200, (g)(2). ASE B3 content area A, Preparation (7 of 55 questions)
  • The battery has just been disconnected before a dash panel is removed. Why can an air bag still deploy? Wikipedia, Airbag, Operation and Maintenance. ASE B3 content area A, Preparation (7 of 55 questions)
  • Before trim is removed near a hybrid battery, a marking is seen on a cover. How is the high voltage symbol of FMVSS 305 colored? 49 CFR 571.305, S5.4.1.1. ASE B3 content area A, Preparation (7 of 55 questions)
  • The underside of a panel is covered with sound-deadening undercoat. What is done before the hammer and dolly are used on it? US Army subcourse OD1653, Metal Body Repair, lesson 1, hammer finishing. ASE B3 content area A, Preparation (7 of 55 questions)
  • Where must safety data sheets be kept, under the OSHA hazard communication standard? 29 CFR 1910.1200, (g)(8). ASE B3 content area A, Preparation (7 of 55 questions)
  • Which working voltage makes an electrical component a "high voltage source" under FMVSS 305? 49 CFR 571.305, S4, definitions. ASE B3 content area A, Preparation (7 of 55 questions)
  • Why is tar, gravel and road dirt scraped from the underside of a fender before it is bumped out? US Army subcourse OD1653, Metal Body Repair, lesson 1, roughing and aligning. ASE B3 content area A, Preparation (7 of 55 questions)
Show all 55 questions (48 more)

Outer body panel repairs 17

  • A bumper system is rebuilt with its absorbers and reinforcement. At what speed is the barrier impact of the federal bumper standard run? 49 CFR 581.5, (a). ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A crease lies where no dolly can be put behind the panel. Which method uses the strength of the panel crown and a spoon? US Army subcourse OD1653, Metal Body Repair, lesson 1, hammer finishing. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A dent is driven out from behind without first releasing the locked ridge around it. What is the result? US Army subcourse OD1653, Metal Body Repair, lesson 1, roughing and aligning. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A door closes only to its first catch after an adjustment. How much load must a primary door latch hold in that secondary latched position, under FMVSS 206? 49 CFR 571.206, S4.1.1.1. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A door panel is caved in, with a hard ridge around the dent. What is worked first? US Army subcourse OD1653, Metal Body Repair, lesson 1, roughing and aligning. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A door shell is checked after a side hit. Where does a door get most of its strength? US Army subcourse OD1653, Metal Body Repair, lesson 1, body construction. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A fender sits too far back against the door. How is a bolted fender moved forward and held there? Auto Body Repair and Repainting: Instructional Units (1974), ERIC ED114594, roughout unit, job sheet 2, align a fender. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A hit on the front of a fender leaves a buckle near the door edge. What kind of damage is the buckle? Auto Body Repair and Repainting: Instructional Units (1974), ERIC ED114594, roughout unit, terms and definitions. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A hood latch assembly is replaced after a front hit. What does FMVSS 113 require of a front-opening hood that could block the driver's view if it opened? 49 CFR 571.113, S4.2. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A panel was creased in three stages during a collision. In what order is the damage corrected? US Army subcourse OD1653, Metal Body Repair, lesson 1, analyzing damage. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • A replacement rocker panel has been welded on. How is corrosion protection put back inside the closed section? Wikipedia, Rustproofing, Aftermarket. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • An aluminum panel is fastened with bare steel hardware where road water collects. Which kind of corrosion does this set up? Wikipedia, Galvanic corrosion, opening section. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • In direct (on-dolly) hammering, where does the hammer strike? US Army subcourse OD1653, Metal Body Repair, lesson 1, hammer finishing. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • In indirect (off-dolly) hammering, where is the dolly held and where do the blows fall? US Army subcourse OD1653, Metal Body Repair, lesson 1, hammer finishing. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • What is a pick hammer used for in metal bumping? US Army subcourse OD1653, Metal Body Repair, lesson 1, hammer finishing. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • What is direct damage? Auto Body Repair and Repainting: Instructional Units (1974), ERIC ED114594, roughout unit, terms and definitions. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)
  • Why should a dolly block never be gripped tightly during bumping? US Army subcourse OD1653, Metal Body Repair, lesson 1, roughing and aligning. ASE B3 content area B, Outer Body Panel Repairs, Replacements, and Adjustments (17 of 55 questions)

Metal finishing and body filling 8

  • A stretched area of a steel panel is to be hot shrunk. How is the first spot heated? US Army subcourse OD1653, Metal Body Repair, lesson 1, metal shrinking. ASE B3 content area C, Metal Finishing and Body Filling (8 of 55 questions)
  • During hot shrinking of steel, when is the heated spot quenched with water? US Army subcourse OD1653, Metal Body Repair, lesson 1, metal shrinking. ASE B3 content area C, Metal Finishing and Body Filling (8 of 55 questions)
  • How are plastic body filler and its hardener mixed? Auto Body Repair and Repainting: Instructional Units (1974), ERIC ED114594, body filling unit, job sheet 2. ASE B3 content area C, Metal Finishing and Body Filling (8 of 55 questions)
  • How is a body file handled on the return stroke? US Army subcourse OD1653, Metal Body Repair, lesson 1, body file. ASE B3 content area C, Metal Finishing and Body Filling (8 of 55 questions)
  • How is the first coat of plastic filler applied to a ground metal surface? Auto Body Repair and Repainting: Instructional Units (1974), ERIC ED114594, body filling unit, job sheet 3. ASE B3 content area C, Metal Finishing and Body Filling (8 of 55 questions)
  • Paint is to be ground off a panel with a disk sander. Why is an open coat disk chosen? US Army subcourse OD1653, Metal Body Repair, lesson 1, sanding disks. ASE B3 content area C, Metal Finishing and Body Filling (8 of 55 questions)
  • Which tools are used to cold shrink a stretched panel? US Army subcourse OD1653, Metal Body Repair, lesson 1, metal shrinking. ASE B3 content area C, Metal Finishing and Body Filling (8 of 55 questions)
  • Why does heat shrinking an aluminum panel call for extra care? US Army subcourse OD1653, Metal Body Repair, lesson 1, metal shrinking. ASE B3 content area C, Metal Finishing and Body Filling (8 of 55 questions)

Glass and hardware 5

  • A power window with automatic closing is reset after a regulator is replaced. What must it do when it meets an obstruction, under FMVSS 118? 49 CFR 571.118, S5.1. ASE B3 content area D, Glass and Hardware (5 of 55 questions)
  • A side window has shattered into the door. How are the small glass fragments removed? US Army subcourse OD1653, Metal Body Repair, lesson 2, installing glass, safety precautions. ASE B3 content area D, Glass and Hardware (5 of 55 questions)
  • A tempered door glass is slightly too wide for its channel. Can it be ground to fit? US Army subcourse OD1653, Metal Body Repair, lesson 2, types of glass. ASE B3 content area D, Glass and Hardware (5 of 55 questions)
  • Before replacement glass is installed, what is inspected and corrected? US Army subcourse OD1653, Metal Body Repair, lesson 2, installing glass. ASE B3 content area D, Glass and Hardware (5 of 55 questions)
  • In door hardware terms, what is the sash channel? Auto Body Repair and Repainting: Instructional Units (1974), ERIC ED114594, glass unit, terms and definitions. ASE B3 content area D, Glass and Hardware (5 of 55 questions)

Welding, cutting and removal 12

  • A MIG arc makes a popping sound, and the bead is discolored, porous and spattered. What does the Navy manual point to? US Navy Steelworker, Volume 1 (1996), chapter 8, regulators. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • A replacement panel is fitted and tack welded. What is a tack weld for? US Navy Steelworker, Volume 1 (1996), chapter 3, types of welds. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • How does brazing differ from welding? Wikipedia, Brazing, opening section. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • In GMAW (MIG) welding, what happens when there is too little wire stick-out? US Navy Steelworker, Volume 1 (1996), chapter 8, wire stick-out. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • On a constant voltage GMAW machine, how is the welding current raised? US Navy Steelworker, Volume 1 (1996), chapter 8, welding machine. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • Surface porosity shows in a MIG bead on an outer panel. Which is a cause the Navy manual lists? US Navy Steelworker, Volume 1 (1996), chapter 8, common weld defects. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • Thin body sheet metal is MIG welded. Which type of metal transfer was developed for thin-gauge metal? US Navy Steelworker, Volume 1 (1996), chapter 8, types of GMA welding. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • Which current and polarity does the Navy manual recommend for gas metal-arc welding? US Navy Steelworker, Volume 1 (1996), chapter 8, welding machine. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • Which travel technique does the Navy manual give for GMAW on light-gauge metal? US Navy Steelworker, Volume 1 (1996), chapter 8, welding positions. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • Which wire diameters does the Navy manual give as generally used for GMAW on thin materials? US Navy Steelworker, Volume 1 (1996), chapter 8, filler wires. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • Why does resistance spot welding of aluminum need a more powerful welder than steel does? Wikipedia, Spot welding, Applications. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)
  • With a self-regulating GMAW power source, what happens to the welding current as wire stick-out increases? US Navy Steelworker, Volume 1 (1996), chapter 8, wire stick-out. ASE B3 content area E, Welding, Cutting, and Removal (12 of 55 questions)

Plastic repair 6

  • A bumper cover is repaired by hot air welding. What must the filler rod be made of? Wikipedia, Plastic welding, Hot gas welding. ASE B3 content area F, Plastic Repair (6 of 55 questions)
  • A cracked panel is identified as a thermoset. Why can it not be repaired by plastic welding? Wikipedia, Thermosetting polymer, opening section. ASE B3 content area F, Plastic Repair (6 of 55 questions)
  • In speed tip welding of a polypropylene part, what must be done with the melted welding rod? Wikipedia, Plastic welding, Speed tip welding. ASE B3 content area F, Plastic Repair (6 of 55 questions)
  • What are the three stages of welding a thermoplastic, in order? Wikipedia, Plastic welding, opening section. ASE B3 content area F, Plastic Repair (6 of 55 questions)
  • What is sheet molding compound (SMC), used for some composite body panels? Wikipedia, Sheet moulding compound, opening section. ASE B3 content area F, Plastic Repair (6 of 55 questions)
  • Which kind of plastic can be softened with heat, reshaped, and hardens again when it cools? Wikipedia, Thermoplastic, opening section. ASE B3 content area F, Plastic Repair (6 of 55 questions)

How this list was compiled: Our own questions, written to the test specifications and task list for Non-Structural Analysis and Damage Repair (Test B3) in the ASE Collision Study Guide (https://ase.com/wp-content/uploads/ASE_Collision_Study_Guide.pdf, marked (c) ASE 2026, read 2026-10-13): A preparation 7 questions, B outer body panel repairs, replacements, and adjustments 17, C metal finishing and body filling 8, D glass and hardware 5, E welding, cutting, and removal 12, F plastic repair 6; total 55. The bank holds the same 7, 17, 8, 5, 12 and 6. Each fact was read on 2026-10-13 in the public text named under its question: US Army subcourse OD1653, Metal Body Repair (archive.org/details/metal-body-repair); US Navy Steelworker, Volume 1 (1996), chapters 3 and 8; Auto Body Repair and Repainting: Instructional Units (1974), ERIC ED114594; federal rules at ecfr.gov (49 CFR 571.113, 571.118, 571.206, 571.305 and 581.5, 29 CFR 1910.1200); and Wikipedia for corrosion, air bags, spot welding, brazing and plastics. The sample questions printed in the study guide were not used. Licence: Questions, choices and explanations are original work of this site.

How it works

This free ASE B3 practice test is the non-structural half of the B2 & B3 pair: 55 questions of our own, weighted like the real test. It is unofficial and not affiliated with the National Institute for Automotive Service Excellence (ASE).

Read the full guide

How the 55 questions are split

ASE's study guide splits the 55 scored questions: preparation 7, outer body panel repairs, replacements and adjustments 17, metal finishing and body filling 8, glass and hardware 5, welding, cutting and removal 12, and plastic repair 6. This bank holds the same counts.

B2 and B3 together

An ASE practice test for collision repair B2 & B3 is two tests. This page is B3. For painting and refinishing, take the ASE B2 practice test.

Where the answers come from

Hammer, dolly, shrinking and glass work rest on a US Army body repair course, welding on a Navy manual, body filler on a public instructional unit, and latches, power windows and high voltage on federal standards.

  • Outer body panels and welding are 29 of the 55 questions. Start with those two topics.
  • Learn the four hammer methods by where the dolly sits: under the damage, under the low spot, absent, or replaced by a pick.

Questions and answers

Is there an ASE B3 practice test free of charge?

Yes. This ASE B3 practice test is free: all 55 questions, a timed round and a printed paper test, with no account. The questions are our own, not the ones on the real test.

How many questions are on the ASE B3 test?

ASE's 2026 Collision study guide lists 65 questions in 90 minutes: 55 scored and 10 that are not counted. They are not marked, so answer all of them. The recertification test is 28 questions in 45 minutes.

Are ASE B2 and B3 one test?

No. B2 is Painting and Refinishing and B3 is Non-Structural Analysis and Damage Repair. Each has its own 55 scored questions and 90 minutes, and each counts toward Master Collision Repair and Refinish Technician.

What is on the ASE B3 non-structural test?

Shop tasks: reading the damage and planning the repair, removing and aligning hoods, doors, fenders and bumpers, straightening and shrinking metal, body filling, glass and window regulators, welding and cutting panels, and repairing plastic parts.

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