delaware
CDL Practice Test

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This site is available to practice and prepare to take the Delaware CDL test. These tests are free and you are able to take them as many times as you would like. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50-minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin. 

1 / 40

Select the action that is not recommended when driving on slippery roads:

2 / 40

The system that needs to be checked for signs of leaks with rust or carbon soot and damage is the _____.

3 / 40

If you work for an interstate carrier:

4 / 40

Puddles or dripping fluids from the underside of the transmission and engine may indicate:

5 / 40

What is the purpose of the supply pressure gauge?

6 / 40

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

7 / 40

You can be sure air is supplied to the second trailer by:

8 / 40

Carry-on baggage cannot be stored:

9 / 40

When conducting a pre-trip inspection, the most important item to verify is _____.

10 / 40

Which of the following is not a prohibited practice on the bus:

11 / 40

What is the best way to stop all skids?

12 / 40

To maintain alertness during the trip, drivers should:

13 / 40

What are you checking when looking at the lubrication level on a dipstick?

14 / 40

How do you make sure the trailer height is correct before coupling?

15 / 40

What is the normal operating range for a truck's oil pressure?

16 / 40

What is the standee line?

17 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

18 / 40

Which of the following hazard classes utilizes a transport index in order to determine how much of it can be loaded on a single vehicle for transport?

19 / 40

How should the trailer be lined up when preparing to back the tractor up?

20 / 40

Where are shut-off valves located?

21 / 40

How high should you crank the landing gear?

22 / 40

How do you make sure the air lines are not crossed and the trailer brakes are working after supplying air to the trailer?

23 / 40

To test the security of the tractor semi trailer connection you should:

24 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

25 / 40

____is the most common type of foundation brakes used by heavy vehicles.

26 / 40

A driver that hauls hazardous materials must attend training every:

27 / 40

What is the minimum amount of distance you should maintain when driving at 50 mph in ideal conditions with a 100 ft twin trailer combination?

28 / 40

When stopped on a divided highway where should your reflectors be placed?

29 / 40

What should you hear when you have the hand valve on and are testing the trailer brakes by opening the service air line at the back of the trailer?

30 / 40

When backing your vehicle, which of the following is NOT recommended

31 / 40

What should you do if the low air pressure warning comes on for only one system in a truck or bus that has a dual air brake system?

32 / 40

If your bus has an emergency exit door, it must:

33 / 40

What is the best way to see the sides and rear of your vehicle?

34 / 40

Who is responsible for certifying on the bills of lading that the hazardous materials are prepared properly?

35 / 40

While completing the 3rd component of the air brake check of a combination vehicle, at what psi should the tracor protection valve and parking brake valve should pop out?

36 / 40

Drivers who transport route controlled radioactive materials must carry a dated certificate of radioactive materials training. This training must have ocurred within the last:

37 / 40

After coupling with a trailer, what position should the front trailer supports be in before driving away?

38 / 40

When checking the wheelchair lift, the things you should look for are:

39 / 40

Which contains more alcohol: a 12-ounce glass of 5% beer, a 5-ounce glass of 12% wine or a 1 1/2-ounce shot of 80 proof liquor?

40 / 40

Select the true statement about slack adjusters:

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CDL Category Practice Tests

CDL Practice Test

How To Get A delaware Commercial Drivers License

Those who are 18 years of age and older can apply for their CDL. To receive privileges for out-of-state driving, doubles/triples, hazmat, and transporting vehicles, residents must be at least the legal age of 21 years old. All CDL applicants are required to comply with the MCSR 49 CFR 391.41 section of the Federal Codes regarding commercial driving medical requirements. Individuals must present a medical examiner’s certificate at the time of their CDL application.

Any of the following will automatically disqualify an applicant from receiving their CDL:

  • Having a revoked, suspended, canceled, or denied driver’s license.
  • Being convicted in the past 24 months of driving impaired in a commercial vehicle.
  • Having disqualified CDL privileges in another state.
  • Possessing more than one operator’s license.

All applicants are required to complete an on-site vision test, knowledge test(s), and a practical skills test. All tests must be successfully passed before a Delaware resident can be issued their CDL.

Endorsements
S – School Bus
X – Tank and Hazmat
T – Doubles and Triples
P – Passenger
N – Tank Vehicles
H – Hazardous Materials

Hit the Open Road

delaware CDL License Test Tips

Delaware residents must complete, at the minimum, one knowledge test to be considered eligible for a CDL. Depending on the Class and the Endorsements that are sought, individuals may have to undergo additional testing. All tests must be passed with a score of 80 percent or more. General knowledge tests for Class B and C drivers are 50 questions. Those seeking their Class A will have 50 general knowledge questions with an additional 20 questions about combination driving. Endorsements and the Air Brake Restriction Removal require additional knowledge tests that are between 20 and 30 questions each.Once an individual passes their knowledge test they are given a commercial learning permit (CLP). After waiting 14 days, the holder can take their skills test. This is a three part test that assesses the individual’s ability to operate a commercial motor vehicle. The test includes a pre-trip inspection, a driving test, and a basic controls test. All three parts must be successfully passed for the applicant to be eligible for their CDL. If applying for a special endorsement, the individual must take their test in the vehicle the endorsement is for.

Additional Information

Information on the Delaware Division of Motor Vehicles

The State of Delaware Division of Motor Vehicles provides oversight and administration for the CDL requirements and testing in Delaware. To get more information contact them via:

Website: https://www.dmv.de.gov/DriverServices/drivers_license/CDL/index.shtml

Phone:  302.326.5000

 

Additional Delaware CDL Helpful Links

Please use the links below to access more valuable Delaware CDL testing resources and to learn more about practice driving tests for the state of Delaware.