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Free California CDL General Knowledge Practice Test 2023

You are looking for actual practice for your coming CDL test? So you have come to the right place. Our CA General Knowledge Practice Test has the same questions as the real exam which is based on the California CDL Handbook. Our test covers most of the subject areas on the California General Knowledge Test such as shifting techniques, railroad crossing safety, drunk driving laws, and much more to make you become a safer driver. In addition, each question has a detailed explanation that will help you understand the concept and answer future questions about it correctly. If you don't get the pass right away, don't worry, you can take this California CDL practice test an unlimited number of times to make sure you learn all the questions. Our practice test will refine your driving knowledge so you can earn your CDL and start driving on the roads. Let’s take our CDL practice test now!

Our CDL practice tests:
Based on 2021 CA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
CA CDL General Knowledge Test format:
50 questions
40 correct answers to pass
80% passing score
Study now
List of questions
1.
You are checking your tires for a pre-trip inspection. Which of these statements is true?
2.
Which of these statements is true?
3.
Weight transmitted to the ground by one axle or one set of axles called:
4.
Which of these statements about certain types of cargo is true?
5.
You are inspecting hydraulic brakes. You should pump the brake pedal three times then apply firm pressure to the pedal for five seconds. If the brakes are working properly, the pedal should:
6.
Which of these is a good thing to remember when crossing or entering traffic with a heavy vehicle?
7.
When loading and securing a boulder, it should be:
8.
Retarders:
9.
What violations occurred on Day 2 of this example?
Day 1

Day 2
10.
To prevent rolling, how many points of contact are required, at minimum, for a boulder resting on a rounded or partially rounded side?
11.
When driving at night, you should:
12.
What is the minimum amount of rearward force that a cargo securement system must withstand?
13.
What is the Aggregate WLL of the securement system for a load secured with 7 tiedowns: 3 rated at WLL of 4,000 lbs, 2 at 6,500, and 1 at 8,000?
14.
A tiedown is defined as:
15.
Adding or burning off fuel will mainly change the amount of weight on which axles?
16.
Circumstances that would make wheels and rims unsafe include the following except:
17.
The maximum distance from the rear allowed for attaching mechanisms used to secure roll-on/roll-off containers is:
18.
Impaired drivers who present potential hazards may tend to:
19.
Cargo is contained when:
20.
The bridge formula _____.
21.
What will be the ultimate limitation that prevents you from putting the trailer tandems as far to the rear of the trailer as possible?
22.
Which of these do not provide extra gears on some trucks?
23.
You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true?
24.
When loading paper rolls with eyes horizontal, which of the following is not a requirement for stacking a second layer?
25.
Which of these should you NOT do in an emergency situation?
26.
Which of these statements about rear drive wheel braking skid is true?
27.
Which of the following is NOT a requirement for shortwood loaded lengthwise?
28.
You are driving a 40-foot vehicle at 55 mph. The road is dry, and visibility is good. What is the least amount of space that you need to have in front of your vehicle?
29.
What should you do if a car coming toward you at night keeps its high beams on?
30.
Drivers of trucks and tractor-trailers with cargo must check that the cargo is well secured within the first ___ miles of the trip.
31.
When banding paper rolls with eyes vertical, you should:
32.
After turning and getting up to speed:
33.
Under the adverse driving conditions exception, how many additional hours can you drive?
34.
High beams should only be used at a distance of:
35.
What is a pallet used for?
36.
When securing a metal coil with eyes lengthwise, all of the following are steps for securement option #1 except for:
37.
Combination vehicles must display license plates:
38.
Overall length limit on vehicles transporting machinery, poles, or structural objects is:
39.
If you do not have a CB-radio, what procedure should you follow on an accident scene?
40.
Backing your vehicle in a straight line without crossing over or touching the exercise boundaries is called:
41.
The basic control skills exam allows for a maximum of how many points scored?
42.
Which of these items is NOT checked for a pre-trip inspection?
43.
What should you do when your vehicle hydroplanes?
44.
Putting too much weight towards the rear may cause all of these EXCEPT:
45.
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:
46.
Some causes of fuel fires include improper fueling, driver smoking, and:
47.
How long does it typically take a tractor-trailer to cross a single set of railroad tracks?
48.
Which of these is the most important thing to remember about emergency braking?
49.
Oil, coolant, charging circuit warning lights should go out _________.
50.
When securing paper rolls with friction mats as a primary method:
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