1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
All tests
/
 
 
 
 
 
Advertisement
Based on official Colorado exam questions

CO CDL General Knowledge Exam Simulator 2025

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements

Have you always wanted to drive one of those heavy trucks you saw as a kid? Or perhaps the school bus driver inspired you to follow their career path once you grew up. Make your dream career a reality and begin the process of obtaining a Colorado Commercial Driver’s License (CDL) today. Your determination to achieve your professional goals will play a crucial role in this journey, but you must also meet several licensing requirements. To obtain a Commercial Learner’s Permit (CLP), you must obtain a valid DMV Medical Examiner’s Certificate, provide the necessary documentation, pay the license fees, and pass the official CDL General Knowledge (permit) test. This exam consists of 50 questions based on the official Colorado commercial driver license manual (Colorado CDL Handbook 2025). After holding a CLP for at least 14 days and completing Entry-Level Driver Training (ELDT) from a registered training provider, you can schedule and take the CDL skills test.

If you have difficulty understanding the various aspects of commercial driving theory, you should adopt a smarter approach and change your study routine. You cannot become an expert overnight, so we recommend dedicating a few days to understanding the basic concepts and several more weeks to master this subject. Our other CDL practice tests can strengthen your knowledge through active learning, which is more effective than traditional learning methods. When you’re ready, take our Colorado CDL General Knowledge Exam Simulator to see if you can pass the official exam. This intuitive tool has been recently updated for October 2025 and includes the latest updates brought by DMV rules or state law. All 50 questions have multiple answer choices, but only one is correct.

You get unlimited attempts, nonstop access, and the flexibility to practice at your own pace. All you need is a compatible device and a stable internet connection. Your dream career is within reach. We’ll get you there faster with our intuitive tools, but you must put in the time and effort necessary to become a safe and responsible commercial driver. Whether it takes weeks or months, remember there’s no time limit during your learning phase.

5 min to complete
Available in EN and ES
CO commercial driver's license
Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
This test is a Premium member exclusive. You'll get

All 650 exam-like questions specific to Colorado

Interactive learning with AI personal tutor

Unique 360° Virtual Road Simulations

Get your money back if you don’t pass

Verified for accuracy: October 2025

Reviewed by Steven Litvintchouk, M.S.
Chief Educational Researcher (ACES member)
Methodology & Editorial Policy

What to expect on the actual CO exam

50

questions

40

correct answers to pass

80%

passing score

Are you in another state?

Ask AI Coach
Hi there! I'm Officer Frank