CDL vs CDL Practice Test Pro

Pass your CDL knowledge test the first time. CDL Prep is built from the official CDL manual — every question written to exam style, every answer explained, every fact cited back to the manual section it comes from. WHAT YOU GET • 886 practice questions across all 8 sections: General Knowledge, Air Brakes, Combination Vehicles, Hazmat, Tanker, Doubles/Triples, Passenger, and School Bus • Free 20-question diagnostic that finds your weak spots in minutes • Exam simulator with real test conditions and an optional timer • Smart review: the app tracks what you miss and brings it back until you know it — flag any question to study it later • Pre-trip inspection trainer: the full Class A checklist with word-for-word "point and say" scripts, plus a recite mode that drills it into memory • Study notes: the manual's high-yield facts condensed into quick reading for every section • Exam readiness score so you know when you're actually ready to book the test • Daily streaks to keep you consistent • Works 100% offline — study anywhere, no signal needed EVERY STATE The CDL knowledge test follows the same federal standard (49 CFR 383) in all 50 states. Pick your state and CDL Prep personalizes the app and links you to your state's DMV. FREE TO START The diagnostic, study notes, smart review, and pre-trip walkthrough are free, plus 2 practice tests per core section. Go Premium for unlimited tests, all 5 endorsements, and the pre-trip recite mode. Download CDL Prep and pass with confidence.

The federal CDL knowledge test requires 80 percent to pass, across eight subtests: General Knowledge, Air Brakes and Combination Vehicles, which every Class A applicant sits, plus five endorsements you choose based on what you plan to haul: Doubles/Triples, Tank Vehicles, Hazardous Materials, Passenger and School Bus. This app drills every subtest, one question at a time, and explains the method after every answer. WHAT IS INSIDE - Over 1,400 practice questions across all eight CDL subtests - An explanation with every question, worked through step by step - Core mock exam: 30 questions blending General Knowledge, Air Brakes and Combination Vehicles, with the same 80 percent pass mark as the real test - A standalone practice exam for each endorsement you select THE SUBTESTS General Knowledge covers vehicle inspection, basic control, backing, space and speed management, hazard perception, cargo, hours of service and trip planning. Air Brakes covers system nomenclature, contaminated air, the low pressure warning, pre-trip inspection, parking brake use and grade braking. Combination Vehicles covers coupling, off-tracking, skid control and ABS. Doubles/Triples, Tank Vehicles, Hazardous Materials, Passenger and School Bus each cover the topics for that endorsement. HOW YOU STUDY - Pick your endorsements during setup, or change them later in Settings - Set a daily goal and the home screen tracks it, with a streak for the days you keep - Spaced review brings each question back just before you would forget it - Weak spots gathers the ones you keep getting wrong - Accuracy by topic group, weakest first, so you always know where the time should go - Bookmark anything you want to come back to - Enter your test date and the review schedule tightens as it approaches - Every attempt at every exam is kept, so you can open a past run and read through what you missed ABOUT SCORING 80 percent to pass is the actual federal minimum for the CDL knowledge test, not a house rule. This app covers federal, general content for Class A only: it does not cover state-specific additions to the test. No in-app purchases, no subscription. NOT AFFILIATED This app does not represent a government entity. It is an independent study tool, not affiliated with, endorsed by, or sponsored by the FMCSA, any state DMV, or any official CDL testing program. Original Source: https://www.fmcsa.dot.gov/registration/commercial-drivers-license