What CDL endorsements can I practice?

General knowledge, air brakes, hazmat, passenger, school bus, tanker, and doubles/triples — with state-specific endorsement tests where available.

Is this the actual DMV CDL test?

No. These are practice questions aligned with common CDL test topics. Always confirm requirements with your state DMV.

CDL & endorsements

CDL license practice tests

Studying for your commercial driver license? Practice general knowledge, air brakes, hazmat, passenger, school bus, tanker, and doubles/triples endorsements.

Step 1

Select your state

Step 2

Endorsement

California · General knowledge

CDL General Knowledge Test

CDL exam prep by endorsement

The CDL general knowledge test is required for every commercial driver. Endorsements like hazmat, passenger, and tanker require additional exams.

Use short practice quizzes to memorize air brake procedures, cargo rules, and endorsement-specific regulations before your DMV or third-party testing center appointment.

Frequently asked questions

What CDL endorsements can I practice?: General knowledge, air brakes, hazmat, passenger, school bus, tanker, and doubles/triples — with state-specific endorsement tests where available.
Is this the actual DMV CDL test?: No. These are practice questions aligned with common CDL test topics. Always confirm requirements with your state DMV.

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