# Free Colorado CDL General Knowledge Practice Test 2023

Our CDL practice tests:
Based on 2021 CO commercial driver's license manual
Perfect for first-time, renewal applicants
CO CDL General Knowledge Test format:
50 questions
80% passing score
List of questions
1.
You must drive through deep or flowing water, you should not:
2.
By law, who is ultimately responsible for ensuring the safety and road-worthiness of a CMV?
3.
Which statement below is false?
4.
Which of these statements about using turn signals is true?
5.
Any driver convicted of violating an out-of-service order will be disqualified for a minimum of:
6.
What is the aggregate WLL of two indirect tiedowns with a WLL of 5,000 lbs, and one tiedown with a WLL of 6,000 lbs?
7.
When securing an intermodal container on a chassis, what is the maximum allowable vertical travel when secured?
8.
Who is responsible for ensuring that the vehicles, anchor points and other securement components are in good working order?
9.
10.
How many tiedowns are required on a stack of shortwood loaded crosswise?
11.
When securing rolls of paper with eyes vertical, how many points of contact are required to consider a roll secure?
12.
All vehicles on all highways have a maximum allowable height of:
13.
Which of the following statements about speed management is true?
14.
The responsibility for repairing items noted on the pre-trip report that affect safety belongs to:
15.
Which means of securement is prohibited when transporting coils with
the coil eye crosswise on the vehicle?
16.
What is the best advice for drivers when a heavy fog occurs?
17.
To help slow the vehicle to reduce the need for using the service brakes, some vehicles are equipped with:
18.
A device placed between the deck of a vehicle and car or between articles of cargo, intended to provide greater friction than exists naturally between these surfaces is:
19.
If you are driving while sleepy, the safest remedy is:
20.
Why should you always plan on arriving to your destination as quickly as possible?
21.
What does EOBR stand for?
22.
If you have a road emergency and must park on the shoulder, how soon should you put out your triangles?
23.
You receive a scale ticket and your drive axles are 32,200 and your trailer tandems are 35,100. Based upon the two most common tandem slider rail hole spacings, what is the minimum number of holes you would have to slide the tandems to get the weight legal, and in which direction?
24.
In what circumstance can shortwood be treated as longwood?
25.
What is the Federal standard for the weight limit on a single axle?
26.
Why did Congress enact the Bridge Formula in 1975?
27.
"Fully Contained" means:
28.
In addition to preventing engine freezing, proper coolant levels help _________.
29.
A chain marked with a
4 is identified as what kind?
30.
Extra care is needed to keep your vehicle centered in your lane because commercial vehicles:
31.
Which of these is true about hauling hazardous materials?
32.
Empty trucks:
33.
How far should a driver look ahead of the vehicle while driving?
34.
In the following picture, what are axles 2 and 3 commonly referred to as?

35.
Which statement is true?
36.
Under the adverse driving conditions exception, how many additional hours can you drive?
37.
When using tiedowns for securing cargo, what is the general rule regarding cargo length.
38.
When your vehicle is out of gear for more than its length, it will be scored as:
39.
Which of these is the proper signal to change lane?
40.
Mirror adjustment can only be checked accurately when:
41.
Which statement below accurately describes the 11 hour driving limit?
42.
43.
Stab braking should not be used on vehicles with:
44.
Given that general cargo securement requires a WLL of at least 50% of cargo weight, how many 11mm wire rope tiedowns would be required for a load of 26,000 lbs?
45.
The most common cause of skids is:
46.
If you hear on the radio that there is a major snowstorm forecast along your route, will you qualify for the Adverse Driving Conditions Exception?
47.
What does BAC stand for?
48.
Indirect tiedowns create what direction of force?
49.
Which of the following will alter the gross vehicle weight?
50.
Specifically prohibited in the testing area are cellphones and: