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ASE Collision Repair & Refinish

B4 Collision — Structural Repair — practice test

Studying for B4 (Collision — Structural Repair)? Overhaul Prep has 158 verified B4 questions written to the current task list — in the same formats the real exam uses (direct, Technician A/B, EXCEPT and most-likely-cause). Every answer comes with a written explanation, so you learn why instead of memorising a letter.

158B4 questions
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9,711questions in total
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Sample B4 questions

Straight from the bank — answers highlighted, with the explanation underneath.

Which body/frame construction uses the body panels and reinforcements themselves as the load-bearing structure?

  1. Full-frame (body-on-frame)
  2. Unibody (unitized)
  3. Ladder frame
  4. Perimeter frame
WhyIn a unibody, the sheet-metal panels, rails, and reinforcements form an integral load-carrying structure, unlike body-on-frame designs that bolt a body to a separate frame.

Tech A says a unibody carries crash loads through its panels and reinforcements. Tech B says a full-frame vehicle carries most loads through a separate frame the body bolts to. Who is correct?

  1. Technician A only
  2. Technician B only
  3. Both Technicians A and B
  4. Neither Technician
WhyBoth are correct: a unibody is an integral structure, while body-on-frame vehicles carry loads mainly through the separate frame.

After a front-end repair, a vehicle's wheelbase measures shorter on the left than on the right. This is MOST likely caused by:

  1. Uncorrected mash in the left rail
  2. Diamond damage that was corrected
  3. Excess weld-through primer
  4. Twist
WhyAn unequal, shortened wheelbase on one side points to residual mash (collapsed length) in that rail that was not fully pulled back to spec.

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