idaho
CDL Practice Test

0

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

Never refuel your bus:

2 / 40

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

3 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

4 / 40

Why should you not use the trailer hand brake to straighten out a jack knifing trailer?

5 / 40

The main reason you should pull the dolly out from under a trailer before disconnecting it from the trailer in front is:

6 / 40

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

7 / 40

What are spring brakes?

8 / 40

If you double your speed, what will happen to your stopping distance?

9 / 40

What is the most important reason for doing a vehicle inspection?

10 / 40

It takes special care to drive tankers with liquid in them because:

11 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

12 / 40

Mirrors with a convex surface or "spot" mirrors _____.

13 / 40

You should_____when the low pressure warning is activated:

14 / 40

While completing the 2nd component of the air brake check you are required to turn the electrical power on, begin fanning off the air pressure by rapidly relasing and apply the foot brake and _____.

15 / 40

Select the false statement about tractor protection valves.

16 / 40

When you have a major leak in the service line and put on the brake, the service air pressure will escape and cause the:

17 / 40

Select the factors that can cause your brakes to fade or fail:

18 / 40

What do you check when doing a visual inspection of the coupling?

19 / 40

You are driving a 60 foot truck at 55 MPH, how much space (in seconds) should you keep in front of you?

20 / 40

Which of the following answers lists the three types of emergency equipment you must have on your bus?

21 / 40

If you are driving a 100-foot truck with double trailers at 30 mph in dry conditions, how many seconds of space should there be between your truck and other vehicles?

22 / 40

Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?

23 / 40

Select the answer that is controlled by the foot brake.

24 / 40

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

25 / 40

When would a drive-wheel skid result in a jackknife when pulling doubles?

26 / 40

On a drawbridge, you do not need to stop, but must slow down and make sure it's safe, when:

27 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

28 / 40

How often should you check your cargo?

29 / 40

You do not have to stop at railroad crossings, but must slow down and carefully check for other vehicles:

30 / 40

You should_____when checking the slack adjusters on S-Cam brakes.

31 / 40

When this item is missing or loose, movement may occur between the fifth wheel assembly and the frame.

32 / 40

With the controlled braking method, you _____?

33 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

34 / 40

You should check that the _____are secure, caps are on tight, and is not leaking.

35 / 40

With Division 1.1, 1.2, or 1.3 Class A or B, how close can you park to a bridge, tunnel, or building?

36 / 40

Which of the following should you do when confronted by an aggressive driver?

37 / 40

Select the true statement in regards to stopping distance and speed:

38 / 40

You should check your tires every ____ or every ____ when driving in very hot weather.

39 / 40

The crack-the-whip effect is more likely to cause the front trailer to tip over.

40 / 40

What does the service brake system do?

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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.