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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.
The center of gravity of a load:
2.
What violation occurs on the below example?

Day 1



Day 2

3.
By law, who is ultimately responsible for ensuring the safety and road-worthiness of a CMV?
4.
In case of tire failure, all of the following will be steps in your response EXCEPT:
5.
When driving vehicles with ABS, braking:
6.
When a driver stops and reverses direction to get a better position during the driving exam, it is considered a(n):
7.
Which of these statements about alcohol is NOT true?
8.
The purpose of the retarders is to:
9.
Which of these is true about driving in a tunnel?
10.
Which statement is true about extending the 14 hour on duty clock by using the 8 hour sleeper berth provision?
11.
Methods to keep a cradle from sliding include:
12.
There are three maximum limits you must follow at all times. Those limits are:
13.
Which of these is true about tires and hot weather?
14.
Who is responsible for ensuring that the vehicles, anchor points and other securement components are in good working order?
15.
When coming down a long, steep downgrade, what should be your primary method of controlling your speed?
16.
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?
17.
What is the Federal Standard for maximum weight on a tandem axle vehicle?
18.
Based on the following information, how much fuel can you legally add while remaining legal on the drive axles?

Percentage of fuel weight to drive axles: 25%

Weight Before Fueling: Steer: 11,275, drives: 33,800, gross: 77,420

19.
A left-hand turn should end:
20.
Which of the following are not a primary factor affecting weight distribution across the axles?
21.
A female housing fixed to the side or ends of a vehicle to receive a stake or peg, and may also be used as an anchor point is a:
22.
To avoid driving when tired, if at all possible you should schedule your trips:
23.
What is the most important reason to inspect your truck or bus?
24.
If you are being tailgated, you should not:
25.
All of the following apply to farm vehicle operator CDL exemption EXCEPT:
26.
While driving through an intersection, you should:
27.
What does EOBR stand for?
28.
What is the maximum weight that can be secured by a tiedown with a marked WLL of 5,000 lbs?
29.
What is the main factor that will limit how far back you can slide your tandems?
30.
How does the weight of the vehicle affect stopping distance?
31.
If you need to leave the road in a traffic emergency, you should:
32.
When loading a trailer, if the cargo is loaded all to the rear, it may result in:
33.
Whenever possible, a row of metal coils with eyes vertical requires one direct tiedown to secure against rearward movement at what maximum angle?
34.
If an oncoming vehicle drifts into your lane you should:
35.
Ways that drinking alcohol can affect the brain include:
36.
Based on the following figures, how much fuel can you legally add while remaining legal on the drive axles?

Percentage of fuel weight to drive axles: 30%

Weight Before Fueling: Steer: 11,275, drives: 33,750, gross: 77,220

37.
Which of these is true about radiator shutters and the winter-front during winter driving?
38.
One option of positioning bundles of building materials is:
39.
Is the following example within legal HOS limits?

- A trucker starts driving at 12:00pm
- At 5pm the driver takes a 1 hour break
- At 6pm the driver begins driving again
- At 11:30pm, the driver shuts down and goes off duty for 10 consecutive hours.
40.
All of the following are good tips to staying fit and ready to drive, EXCEPT:
41.
Which of the following is NOT a characteristic of tire failure?
42.
When you are parked on the side of the road at night you must:
43.
What is the minimum WLL used to block forward movement of cargo weighing 36,500 lbs?
44.
Which of these statements about acceleration is true?
45.
A sign of a confused driver who may present a potential hazard is:
46.
When involved in an accident and not seriously injured, basic steps you should take include assist the injured, notify authorities, and:
47.
Which of these is specifically prohibited when securing crushed or flattened vehicles?
48.
In terms of cargo securement, what is a 'well'?
49.
Blocking is used to:
50.
Specifically prohibited in the testing area are cellphones and:
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