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CDL Prep: Exams & Study Guides

CALIFORNIA CDL PRACTICE TEST

The CDL test in California has 50 questions. You must successfully answer at least 40 questions (80%) in order to pass. The California CDL Handbook's topics are covered by the general knowledge test. The following areas must be thoroughly studied by all Class A, B, and C CDL applicants: Hazmat & Passenger Vehicles, Air Brakes (if you intend to drive a vehicle with air brakes), Vehicle Inspection Test, Basic Control Skills Test, and Other Topics. Additionally, there will be questions on the Combination Vehicles segment of the Class A CDL test. To get ready for the actual CA general knowledge exam, take our CA CDL practice test ...(see more)
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1. Is it true that as long as the engine is not overheated, it is completely safe to remove the radiator cap?

Yes
No
Yes, as long as there is no overflow
Yes, as long as the radiator isn't damaged

2. What is the greatest weight allowed for any vehicle or combination of vehicles, plus load, in the state of Texas?

50,000 pounds
60,000 pounds
70,000 pounds
80,000 pounds

3. Which drivers might be exempt from needing a CDL to drive a CMV in the state of Arkansas?

Active duty military personnel driving military vehicles
Farm owners driving a farm vehicle
Recreational vehicles less than 26,000 pounds
All of these

4. If you have a cargo fire inside a box trailer, it's important that you...?

Keep driving until you reach help
Don't open the doors
Get an extinguisher on the fire as quickly as possible
Enlist the help of bystanders

5. Which of these will cause you to lose your CDL for a minimum of one year for the first offense?

Driving a commercial motor vehicle (CMV) when your blood alcohol content (BAC) is .04% or higher
Refusing to undergo blood alcohol testing when asked to do so
Committing a felony that involves your use of a CMV
All of the above

6. Checking your vehicle's suspension does NOT include checking

the shock absorbers.
the air suspension components.
the tires.
the axle positioning parts.

7. How far into your trip should you make your first inspection of your cargo?

At your first rest stop
Within 25 miles
Within 50 miles
Within 100 miles

8. If you're driving a 30-foot vehicle below 40 miles per hour, how much time should you leave between yourself and the vehicle in front?

2 seconds
3 seconds
4 seconds
5 seconds

9. If you must leave the road to avoid a collision, you should...?

Avoid braking
Keep one set of wheels on the pavement
Stay on the shoulder until fully stopped
All of the above

10. If you have a second conviction for DUI while operating either a CMV or your personal vehicle, what is the minimum amount of time you will lose your CDL privileges?

2 years minimum
Life
5 years minimum
10 years minimum

11. Which of the following determines the safe speed for going down a steep downgrade?

The total weight of the vehicle and cargo
The steepness of the grade
The road conditions
All of these

12. Before descending a hill, it's essential to be in the right gear because…?

It will help you speed up when you get to the bottom
It's illegal to change gears on a hill
It will help extend the life of the gearbox
You won't be able to drop to a lower gear once you start descending

13. During your pre-trip test, when examining hoses with the instructor, you need to look for

puddles on the ground.
the location of the dipstick.
frays in the water pump belt.
low windshield washer fluid level.

14. How many days do you have to change your CDL to Arizona, after moving your permanent domicile to Arizona?

30 days
15 days
60 days
90 days

15. Which of these substances can impair your ability to drive safely?

Coffee
Some cold medicines
Homeopathic medicines
Soda

16. Which of the following can you NOT use a B:C fire extinguisher on?

Electrical fire
Gasoline fire
Wood
Grease fire

17. If you are drowsy, what action should you take before driving farther?

Drink a cup of coffee.
Open your vehicle's windows for some fresh air.
Pull off the road and get some sleep.
Drink energy drinks.

18. Which of these is not a possible penalty for having more than one license?

Being put in jail
Being fined up to $5,000
Having your California CDL canceled
Warning for a first offense

19. Which of these should make you reject a vehicle until it is rectified?

Tires from different manufacturers
Tires that are different sizes
Tires that are retreads
Tires that have different tread patterns

20. How far ahead should drivers look while driving, according to the manual?

10 to 12 seconds
5 to 10 seconds
12 to 15 seconds
7 to 12 seconds
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CA CDL Practice Test

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Number of questions:
20
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Correct answers to pass:
18
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Passing score:
90%
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