CDL Practice Tests by Endorsement and Knowledge Test Section

One unofficial question bank for each CDL knowledge test, with the source section shown on every question.

15 pages

General Knowledge CDL Practice Test on the Federal Safety RulesTap an answer to see the right choice, the reason and the 49 CFR section behind it.
Hazmat Practice Test From the Federal Hazardous Materials RulesOn this hazmat CDL practice test, tap an answer to see the 49 CFR section behind it.
CDL Air Brakes Practice Test From the Federal Brake RulesOn this air brakes CDL practice test, tap an answer to see the federal brake rule behind it.
CDL Combination Practice Test on Fifth Wheels and Trailer BrakesTap an answer to see the right choice and the CFR section behind it.
Tanker Endorsement Practice Test From the Federal Cargo Tank RulesTap an answer to see the right choice and the cargo tank rule in 49 CFR behind it.
Passenger Endorsement Practice Test From the Federal Bus RulesTap an answer to see the right choice and its 49 CFR section.
School Bus Endorsement Practice Test on Stop Arms, Mirrors and ExitsTap an answer to see the right choice and the federal standard it comes from.
Doubles and Triples Endorsement Practice Test From the Federal RulesTap an answer to see the right choice and its CFR section.
Texas Commercial Rules Practice Test From the Transportation CodeTap an answer to see the right choice and its Transportation Code section.
CDL Pre Trip Inspection Practice Test From the Federal RulesTap an answer to see the federal inspection rule behind it.
Metal Coil Endorsement Practice Test for New York's M EndorsementTap an answer to see the right choice and the paragraph of 49 CFR Part 393 behind it.
ELDT Practice Test for the Entry-Level Driver Training Theory UnitsTap an answer to see the right choice, the reason, its training unit and the CFR section behind it.
Examen CDL CombinaciónCada respuesta se marca al instante, con la sección federal que la respalda; muchas dan el término en inglés.
CDL School Bus Practice Test in SpanishResponda y vea al instante la respuesta correcta, con la norma federal del autobús escolar que la respalda.
Tank Endorsement Practice Test in SpanishCada pregunta trae su respuesta, la razón y la regla de tanques de carga del 49 CFR que la respalda.

These are unofficial practice tests for the CDL knowledge tests, one page for each section or endorsement: general knowledge, air brakes, combination vehicles, hazardous materials, tank vehicles, passenger, school bus, and doubles and triples. Four more sit beside them: the federal rules behind the pre-trip inspection, the federal coil rule behind New York's metal coil endorsement, entry-level driver training theory, and the Texas Commercial Rules exam, written from the Texas Transportation Code.

More about these tools

Every question names the section its answer comes from. On the federal pages that is nearly always Title 49 of the Code of Federal Regulations. Driving technique that appears only in a state CDL manual is left out, so each bank covers the rules part of its test and says so. A pass in exam mode therefore means the written rules only. On the eight knowledge test pages, exam mode passes at the federal mark of 80 percent.

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