# 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.
The driver is responsible for all of the following, EXCEPT for:
2.
3.
Which of these is the best general rule for night driving?
4.
What is the minimum WLL of each tiedown used to secure crushed or flattened vehicles?
5.
Which of these statements about cold weather driving is true?
6.
Why is it important to shift gears correctly?
7.
A hook-lift container is:
8.
A row of metal coils loaded with eyes lengthwise requires how many direct tiedowns over each side-by-side row or coil?
9.
Which of these is correct about emergency or evasive action?
10.
The aggregate WLL for logs loaded lengthwise must be at least:
11.
What keeps an engine cool in hot weather driving?
12.
In case of tire failure, you should do all of the following, EXCEPT:
13.
In mountain driving you will have to use a lower gear to drive safely on a grade. Which of these does NOT affect your choice of gear?
14.
How many knots are acceptable in a properly working tiedown?
15.
How current must your logbook be?
16.
Which of the following are not a primary factor affecting weight distribution across the axles?
17.
When entering or crossing traffic, observe all of the following EXCEPT _________.
18.
When you sight-side back your vehicle into an alley stopping as close as possible to the rear of the alley it is called:
19.
While driving, ice builds up on your wipers and they no longer clean the windshield. You should:
20.
Circumstances that would make wheels and rims unsafe include the following except:
21.
The maximum distance from the rear allowed for attaching mechanisms used to secure roll-on/roll-off containers is:
22.
Drivers must inspect the securement of cargo every 150 miles or:
23.
You should use your mirror to check?
24.
If you cannot see the driver of a vehicle, then:
25.
Cargo and securement devices should be checked within how many miles after starting a trip?
26.
What is a reusable, transportable enclosure that is especially designed with integral locking devices that secure it to a container chassis trailer to facilitate the efficient and bulk shipping and transfer of goods by, or between various modes of transport, such as highway, rail, sea, and air.?
27.
Distracted driving could be any of the following EXCEPT:
28.
Using the following numbers for your calculations, how much weight will come off your steer axle?

Miles per gallon: 7

Miles travelled: 280

Percenatage of fuel weight on steer axle: 80%
29.
What is a cab shield?
30.
An example of reckless driving is:
31.
Whenever possible, a row of metal coils with eyes vertical requires one direct tiedown to secure against rearward movement at what maximum angle?
32.
In general, the best braking technique to use in maintaining a safe speed when driving on a downgrade is:
33.
Drivers must have a CDL to legally drive:
34.
A dunnage bag is:
35.
The maximum allowable overall length for semitrailers is:
36.
In order to perform the in-cab and gauge inspection, which of the following must be done?
37.
When securing heavy vehicles, what is the minimum WLL of each tiedown?
38.
What day and time did a violation occur in the below example?
Day 1

Day 2
39.
When securing metal coils in a sided vehicle without anchor points:
40.
Which of the following are covered by the specific log securement requirements?
41.
What should you do when your vehicle hydroplanes?
42.
A device placed on the exposed edge of an article to distribute tiedown forces over a larger area of cargo than the tiedown itself, to protect the tie-down and/or cargo from damage, and to allow the tiedown to slide freely when being tensioned is a:
43.
Convex (curved) mirrors:
44.
"You do not have a hazardous materials endorsement on your commercials driver’s license. You are asked to deliver hazardous materials in a placarded vehicle. You should:"
45.
How much space in front of you is needed while driving on a highway?
46.
You receive a scale ticket and your drive axles are 35,400 and your trailer tandems are 31,100. 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?
47.
Most good drivers will look ahead:
48.
Products that pose a risk to health, safety
and property during transportation are called:
49.
When securing paper rolls with eyes vertical in a sided vehicle all of the following are acceptable, EXCEPT:
50.
What kind of extinguisher would you most likely use to fight an electrical fire?