South Dakota CDL Written Test — Questions, Cost & Study Tips (2026)

Studying for your South Dakota CDL written exam? Here is what applicants typically need to know before visiting South Dakota DMV.

How many questions on the South Dakota CDL test?

South Dakota general knowledge written exams commonly include about 50 multiple-choice questions for the core CDL knowledge test. Endorsements such as air brakes, combination vehicles, hazmat, and passenger are separate written tests if your license class requires them.

PassCDL mirrors this structure: start with general knowledge, then add endorsement practice for the tests you need.

South Dakota CDL test cost (approximate)

Written exam fees at South Dakota DMV are typically $20–$30 per attempt (varies by office and endorsement). Failing and retesting can cost more than a month of PassCDL Pro — many students prefer unlimited practice before test day.

South Dakota study tip

South Dakota DMV CDL applicants pass written tests at driver license exam stations.

Free SD CDL practice test

Use our South Dakota CDL practice test for scored questions and explanations. PassCDL Pro adds full exam simulations, all endorsements, and unlimited retakes.

See also: How many questions on the CDL test? · CDL general knowledge study guide

Educational practice only — not affiliated with South Dakota DMV or any state DMV.