// SCORE BREAKDOWN
Comprehensive CDL exam prep with 600+ questions and structured learning, solves clear exam preparation need.
// ABOUT
Pass your Commercial Driver's License (CDL) written test the first time. CDL Exam is a complete study tool built around FMCSA and AAMVA standards — 600+ practice questions, diagram-based scenarios, timed full exams, and a searchable reference library, all in one focused app. Whether you're chasing a Class A, B, or C license, adding a HazMat, Tanker, Passenger, School Bus, or Doubles/Triples endorsement, or just starting your CLP, CDL Exam walks you from your first study session to exam day. WHAT YOU GET 600+ practice questions covering every CDL knowledge test Class A · Class B · Class C — dedicated question filters per class Endorsements: HazMat (H), Tanker (N), Passenger (P), School Bus (S), Doubles/Triples (T) Air Brakes, Combination Vehicles, Pre-Trip Inspection Progressive difficulty — easy → medium → hard Detailed explanations citing the relevant 49 CFR rule or CDL manual section REAL TEST FORMAT Multiple-choice questions with four options each 80% passing threshold (FMCSA / AAMVA standard) Timed Full Exams: 50-question practice or 100-question simulation Diagram-based items for coupling, air brake systems, vehicle classes, placards, road signs, off-tracking, stopping distance, and more Case-based scenarios drawn from real CDL manuals SMART STUDY TOOLS Flag difficult questions and jump around with the question navigator Track performance per category — see which topics to focus on Review your last 20 full-exam attempts Quick reference tab with license classes, HOS rules, air brake pressures, placards, road sign shapes and colors, weight limits, and disqualification rules BUILT FOR EVERY DEVICE Universal app — iPhone and iPad, portrait and landscape Two-column layouts on iPad and landscape phones make large question sets easier to scan Clean, high-contrast night-ready design COVERAGE HIGHLIGHTS Vehicle classes, GVWR/GCWR thresholds, and permit limits Coupling and uncoupling procedures, fifth wheel, pintle hook Air brake components, leakage tests, low-air warning, stab braking Pre-trip inspection — engine, chassis, brakes, coupling, lights, cargo HazMat: 9 hazard classes, placarding, ERG, shipping papers, attendance, routing Tanker: liquid surge, baffles, rollover prevention, DOT tank specs Passenger buses: loading, RR crossings, emergency exits, evacuation School buses: danger zones, red lights and stop arm, crossing gates, RR stop Doubles/Triples: dolly coupling, crack-the-whip, off-tracking Hours of Service (property and passenger carriers), ELDT, Clearinghouse NO ACCOUNT REQUIRED Your progress stays on your device. No subscriptions. No ads interrupting your study. Built by driving professionals for driving professionals. Study hard, stay safe, and earn that CDL.