If you're studying for a PDR technician certification or preparing for a hail repair knowledge assessment, this free printable practice test PDF covers every topic you'll face on exam day. Download it, print it, and study the metal working theory, tool knowledge, damage assessment, and industry billing concepts that separate certified technicians from beginners.
The PDR practice test PDF is built around the knowledge domains tested in I-CAR, National PDR Standards, and employer-administered PDR technician assessments. Here's a breakdown of each major area.
PDR technicians must understand how steel behaves under impact. When a panel is dented, the metal deforms. If the deformation stays within the elastic range, the metal will spring back when pushed. If it crosses into plastic deformation, the metal has permanently changed shape and requires careful manipulation to restore. You need to understand crown (the raised area around a dent) and low spots (the deepest point of the damage), how metal stress radiates from an impact point, and why over-pushing a repair is difficult to reverse.
Tool knowledge is central to any PDR certification exam. Slide hammers and glue pulling systems allow exterior dent repair without accessing the panel from behind — critical for areas with no rod access. Rods vary by length, material, and tip shape; selecting the right rod for a given access point is a judgment skill tested on both written and practical exams. LED lighting boards create reflective shadow lines across the panel surface, letting the technician see the exact location and shape of the damage in real time as they work.
Hail repair technicians are often paid per dent, so accurate assessment is a critical professional skill. Hail mapping boards are placed on each vehicle panel to provide a grid reference. The technician counts dents within each grid square, measures individual dent diameter and depth, and produces a damage report used to generate a repair estimate. Exams test your ability to read a hail map, apply matrix or per-line pricing, and identify when damage exceeds PDR limits and requires conventional body work.
Different panels require different access strategies. Doors typically have access through the window opening or by removing interior panels and access plugs. Hood and trunk lids may be accessed through the engine bay or trunk opening, but bracing and support structures limit rod placement. Roof panels are among the most restricted and often require specialized rods or glue pulling. Quarter panels are frequently unibody and have limited internal space. Exams test your knowledge of access points, panel types, and when a given repair method is appropriate.
PDR technicians who work in hail repair or insurance-referred repair work need to understand how estimates are generated and supplemented. The two primary pricing systems are per-line pricing (a flat rate per dent based on size) and matrix billing (a grid that prices repairs by panel type, dent count, and size). Insurance adjusters use these systems to authorize initial payments, but field conditions often reveal additional damage — this is documented in a PDR supplement submitted to the insurance company for approval before additional work is performed.
Certification through I-CAR (Inter-Industry Conference on Auto Collision Repair) provides nationally recognized credentials that many dealerships, body shops, and independent hail repair operations require before hiring. The National PDR Standards organization maintains written standards for repair quality, tool use, and damage assessment that inform certification exam content. Understanding these standards — not just the hands-on technique — is what written exams test, and what this PDF is designed to help you prepare for.