Free 2027 CO DMV Practice Tests

Based on the official Colorado Driver's Handbook. Get ready for your CO DMV written exam with our comprehensive practice tests.

Car Motorcycle CDL Handbooks location_on DMV Locations

CO CDL General Knowledge

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Questions 30
Mistakes 6 Max
Passing 80%

CO CDL Air Brakes

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Questions 25
Mistakes 5 Max
Passing 80%

CO CDL Combination Vehicles

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Questions 20
Mistakes 4 Max
Passing 80%

CO CDL Hazmat (H)

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Questions 30
Mistakes 6 Max
Passing 80%

CO CDL Tanker (N)

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Questions 20
Mistakes 4 Max
Passing 80%

CO CDL Doubles & Triples (T)

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Questions 20
Mistakes 4 Max
Passing 80%

CO CDL Passenger (P)

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Questions 20
Mistakes 4 Max
Passing 80%

CO CDL School Bus (S)

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Questions 20
Mistakes 4 Max
Passing 80%
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Practice by Topic

menu_book General Knowledge 7 Q compress Air Brakes 8 Q local_shipping Combination Vehicles 8 Q science Hazardous Materials 8 Q water_drop Tanker 8 Q view_comfy Doubles & Triples 8 Q directions_bus Passenger Transport 8 Q school School Bus 7 Q

Commercial Driver's License (CDL)

Class A Prep Class B Prep Class C Prep Air Brakes Endorsement

Colorado DMV Test FAQ

How many questions are on the Colorado CDL permit test?

The CO DMV CDL knowledge test has 25 multiple-choice questions.

What is the passing score?

You must answer at least 20 questions correctly (80%) to pass.

Can I retake the test if I fail?

Yes. Retake policies vary by state; CO DMV typically lets you re-attempt the knowledge test after a short waiting period.