# 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
Perfect for first-time, renewal applicants
CA CDL General Knowledge Test format:
50 questions
80% passing score
List of questions
1.
A vehicle is loaded with very little weight on the drive axle. What may happen?
2.
When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the rear half of the load run?
3.
Sometimes you need to leave a road to avoid a hazard or emergency. When you do, you should keep in mind, that:
4.
"According to the driver’s manual, why should you limit the use of your horn?"
5.
Perception distance is the distance your vehicle travels from the time:
6.
The North American Cargo Securement Standard cover vehicles weighing:
7.
At what time does a violation occur on this log?
8.
You weigh the truck immediately before and after fueling. Based on the following, determine what percentage of the weight goes to each set of axles:

Before fueling:

steer: 10,200, drives: 31,300, gross: 71,700

After fueling:

steer:11,000, drives: 31,500, gross: 72,700

9.
A row of metal coils loaded with eyes lengthwise requires how many direct tiedowns over each side-by-side row or coil?
10.
A stack of shortwood loaded lengthwise can be secured with one tiedown if:
11.
When you encounter a driver that appears to be distracted, you should:
12.
In cargo securement, what is a 'cleat' defined as?
13.
14.
Major signs of tire failure could include:
15.
16.
In cargo securement, a wedge is defined as:
17.
All of the following are considered excessive speeding, EXCEPT:
18.
Which of these are not part of the front pre-trip inspection?
19.
What is the best advice for drivers when a heavy fog occurs?
20.
You're loaded heavy with 1/2 tank of fuel onboard. Using the following numbers, where should you move the 5th wheel to get it setup properly?

steer axle: 12,300 pounds

drive axles: 33,100 pounds

Weight transfer: 500 pounds per hole
21.
When entering or crossing traffic, observe all of the following EXCEPT _________.
22.
What happens if you spend 8 hours in the sleeper berth?
23.
You should use your mirror to check?
24.
A load weighing 41,500 lbs requires securement against rearward force of:
25.
What are most front-wheel skids caused by:
26.
When stopping behind another vehicle, a safe gap to leave is one that:
27.
A placarded vehicle must have how many identical placards?
28.
Which of these is a good thing to do when steering to avoid a crash?
29.
You may hang up on a railroad track if:
30.
Why does vehicle speed naturally increase on a downgrade?
31.
If you are not sure what to use to put out a hazardous material fire you should:
32.
When turning quickly in an emergency, which of the following applies:
33.
What is the cargo's center of gravity?
34.
In the following picture, what are axles 2 and 3 commonly referred to as?

35.
To satisfy general cargo securement requirements, what is the minimum WLL for securing vehicles under 10,000 lbs?
36.
When you see a pedestrian or bicyclist along the road you should:
37.
If unsure of the exact location of the center of gravity of your cargo, where would you rather have the center of gravity located if you couldn't get it centered?
38.
39.
Any CDL holder found to operating a CMV with ANY alcohol in his/her system will be placed out-of-service for a minimum of:
40.
41.
42.
The distance that you should look ahead of your vehicle while driving is about _____ at low speed.
43.
Using the following numbers, what would be the final result if you moved the 5th wheel back one hole?

steer axle: 12,300 pounds

drive axles: 33,100 pounds

Weight transfer: 500 pounds per hole.
44.
When entering and exiting an expressway, and also generally any time you drive, you should:
45.
A driver will generally be required to have a DOT medical card in order to drive which of the following:
46.
The value specified by the manufacturer as the loaded weight of a combination vehicle is _________.
47.
What kind of extinguisher should be used on burning paper, wood, or cloth?
48.
When securing concrete pipe over 45 inches loaded crosswise, which direction must the tiedowns on the front half of the load run?
49.
The term 'edge protector' refers to:
50.
Products that pose a risk to health, safety
and property during transportation are called: