kentucky
CDL Practice Test

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Welcome to the site for practicing questions on the Kentucky CDL test. The site is free and you are able to take the practice test as many times as you need to. Questions are from the KY CDL Manual and cover items such as Air Brakes, Double/Triple Trailers, Hazardous Materials, and School Busses. 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 how you can tell if your vehicle is equipped with an anti-lock braking system:

2 / 40

How should the hand valve be used?

3 / 40

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

4 / 40

How do you know when your brakes are fading?

5 / 40

Two causes of tire fires are ______.

6 / 40

Do not tow or push a disabled bus with riders aboard the vehicle, unless:

7 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

8 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

9 / 40

Select the true statement about stop valves in a cargo tank:

10 / 40

You are checking the_______when looking at the dipstick to see if the lubrication is at the safe operating range or above the refill line.

11 / 40

You may use DANGEROUS placards instead of separate placards for each Table 2 hazard class when:

12 / 40

Class A explosives must not be transported in a combination vehicle if the vehicle includes:

13 / 40

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

14 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

15 / 40

This object should not be spliced, cut, chafed, or worn through to allow steel braid to show.

16 / 40

What are some of the important parts in the steering system?

17 / 40

Be careful to check the_____when unloading the smaller tanks of bulk heads.

18 / 40

This gauge will indicate if the generator or alternator is charging:

19 / 40

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

20 / 40

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

21 / 40

The locking jaws of the kingpin should close around:

22 / 40

____is what can legally hold the parking brake or emergency brake in position for a bus, truck, or truck tractor.

23 / 40

This object should not move more than an inch by pulled by hand with the brakes released for manual slack adjusters.

24 / 40

The 3 parts of the air brake system are: service brakes, parking brakes, and ____.

25 / 40

If there is no traffic light or attendant, how far from the draw of a drawbridge must you stop?

26 / 40

Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?

27 / 40

In Column 1 the symbol "I" means:

28 / 40

You should adjust all the outside left and right side convex mirrors to see:

29 / 40

What gauge on the dashboard indicates electrical system charging rate?

30 / 40

Do converter dollies have spring brakes?

31 / 40

The transport index of a radioactive material:

32 / 40

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

33 / 40

The most important hand signal you should agree on with a helper is:

34 / 40

The reason a bulk liquid tanker is hard to handle is:

35 / 40

Which of the following statements about loading and unloading cargo tanks is false?

36 / 40

You should check your mirrors while making a lane change:

37 / 40

If you have to swerve to avoid a hazard, it's important to:

38 / 40

The correct trailer height when coupling the rear trailer is:

39 / 40

Tankers used to transport hazardous materials on vehicles must be marked with:

40 / 40

You should_____when the low pressure warning is activated:

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CDL Category Practice Tests

CDL Practice Test

How To Get A kentucky Commercial Drivers License

All applicants must possess a valid Kentucky Class D driver’s license and meet all the below requirements to be eligible for their CDL. Applicants who are age 18 may apply for their CDL license. These drivers are restricted to in-state driving, may not operate school buses, or haul hazardous materials. Applicants must be 21 years of age or older to drive out-of-state and receive their School Bus and/or Hazardous Materials Endorsement(s). All drivers applying for their commercial driver’s license must provide the Division of Driver Licensing with a valid DOT medical card.

Drivers who fall into the below categories are disqualified from receiving their CDL:

  • Having more than one driver’s license.
  • Current license is suspended or revoked.
  • Being convicted of driving under the influence of alcohol within 24 months of submitting an application.
  • Being convicted of two or more serious moving violations within a 36 month period.

All CDL applicants are required to complete both knowledge tests as well as a practical skills test.

Endorsements
T – Double/ Triples
P – Passenger
N – Tank
H – Hazardous Materials
S- School Bus

Hit the Open Road

kentucky CDL License Test Tips

General knowledge tests for Class B and C driver applicants are comprised of 50 questions. Those applying for a Class A CDL are required to complete the initial 50 questions as well as 20 additional questions about combinations. Each endorsement requires the applicant to complete a separate knowledge assessment. Endorsements for Doubles/Triples, School Bus, Tank, and Passenger Transport are comprised of 20 questions. The Hazardous Materials Endorsement requires a 30 question test. Lastly, the removal of the Air Brake Restriction is comprised of 25 questions. All assessments must be passed with a score of 80 percent or better.

All applicants will need to take a skills test that assesses their ability to operate their intended vehicle. Once applicants receive their Kentucky CDL permit after completing the knowledge assessment(s), they may apply for the skills test 14 days later. The skills test is comprised of three different parts that will all be assessed in one testing session. These areas include the pre-trip inspection, basic control skills, and driving test. All applicants must successfully show their skills in all three of these areas to be considered eligible for their CDL.

Additional Information

Information on the Kentucky Division of Driver Licensing

The Kentucky State Police regulates CDL requirements in Kentucky. To get more information contact them via:

Website: http://kentuckystatepolice.org/drivers-testing/

Phone:  502.782.1800

 

Additional Kentucky CDL Helpful Links

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