idaho
CDL Practice Test

1

Idaho! 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.  Good luck!

1 / 40

The pintle hook should be_____ and the converter dolly air tank drain valve is___when doing a walk around inspection of a triple or double trailer.

2 / 40

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

3 / 40

If you have riders on board, you must never refuel:

4 / 40

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

5 / 40

Select the true statement in regards to when a bulk tank vehicle stops at an intersection on a slippery surface:

6 / 40

Operating a motor vehicle with the intent of doing harm to others or physically assaulting a driver or their vehicle is known as?

7 / 40

The minimum tread depth for tires other than the front tires is ____.

8 / 40

Select the statement that best describes what the service line is for.

9 / 40

What position should the heaviest trailer be in when pulling 3 trailers?

10 / 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?

11 / 40

What do yo need to do before supplying air to the air tanks of the second trailer?

12 / 40

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

13 / 40

What are spring brakes?

14 / 40

Why should you use chocks when parking a trailer without spring brakes?

15 / 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?

16 / 40

How far before a railroad crossing should you stop your bus?

17 / 40

How often should you check the tires if your placarded trailer has dual tires?

18 / 40

Select when you should use the parking brake:

19 / 40

Which of the following statements about bus evacuation is true?

20 / 40

Cargo tanks ____.

21 / 40

Anti-lock brakes:

22 / 40

When using turn signals, which of the following should be avoided?

23 / 40

A slack adjuster is:

24 / 40

When transporting hazardous loads, you must check the tires at least:

25 / 40

A "transport index" relates to products that are:

26 / 40

You should decrease to a safe speed before entering a curve and then_____through it.

27 / 40

Liquid surge affects the handling of a tanker by:

28 / 40

How often should air tanks be drained?

29 / 40

Animals and human foodstuffs should not be loaded in the same vehicle with?

30 / 40

These tires should have a minimum tread depth of 4/32 inches.

31 / 40

Which of the following is NOT a basic step to be taken at a crash scene?

32 / 40

To prevent a roll over a driver can 1) keep the cargo as low to the ground as possible and 2) _____.

33 / 40

The container for the mechanism that transforms the steering column action into wheel action is:

34 / 40

Remember to_____when steering to avoid a crash while driving doubles.

35 / 40

Drivers placard their vehicle to _____ the risk.

36 / 40

Make sure____when the front trailer supports are up and the trailer is sitting on the tractor.

37 / 40

What is NOT one of the four skill areas that operating a commercial vehicle requires?

38 / 40

What should you hook up before backing a tractor to a trailer for coupling?

39 / 40

Some hazardous materials may not be loaded together with other hazardous materials. The prohibited combinations are listed in the:

40 / 40

How can you determine if your vehicle is equipped with ABS?

Your score is

The average score is 47%

5/5 - (2 votes)

CDL Category Practice Tests

CDL Practice Test

How To Get A idaho Commercial Drivers License

Applicants can be age 18 or older when applying for their CDL. Those under the age of 21 are not eligible for the Hazmat or Doubles/Triples Endorsement. All applicants must get a DOT medical card to shows their ability to be physically able to drive a commercial motor vehicle.

Any drivers that fall into the following categories are disqualified from receiving their CDL:

  • Having more than one driver’s license.
  • Being convicted of an impaired driving offense in a commercial vehicle within the prior 24 months to submitting the CDL application.
  • Current suspended, revoked, denied, or canceled driver’s license.
  • Having CDL disqualifications in other states.

All applicants are required to complete a practical skills test and knowledge test in order to receive their CDL. Adding endorsements to a CDL will require additional knowledge tests and practical skills tests.

Endorsements
T – Doubles / Triples
P – Passenger
N – Tank Vehicles
H – Hazardous Materials
X – Tank Vehicle That Carries Hazardous Materials

Hit the Open Road

idaho CDL License Test Tips

Applicants for an Idaho CDL must complete a written knowledge test to showcase their retention of the commercial driving laws. Class A drivers are required to take a 70 question assessment that includes 20 questions specifically about combination vehicles. Class B and C applicants are required to pass a 50 question assessment. Those seeking endorsements and removal of the Air Brake Restriction must take additional tests that range between 20 and 30 questions. All tests must be passed with a score of 80 percent or better.

CDL applicants are required to pass a three-part skills test. These parts include a driving test, basic control skills test, and vehicle inspection test. This can be completed at an Idaho State Driving Facility or other approved testing site.

Additional Information

Information on the Idaho Transportation Department

The Idaho Transportation Department administers the CDL requirements and testing in Idaho. To get more information contact them via:

Website: https://trucking.idaho.gov/commercial-drivers-license-cdl/

Phone:  208.334.8000

 

Additional Idaho CDL Helpful Links

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