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

Select the best description of a baffle tank:

2 / 40

There must be a hazardous materials identification number on the ______ and on the ______.

3 / 40

The best way to go into a curve is to decrease your speed going into the curve and then ____going through it.

4 / 40

Before backing under the trailer after connecting the air lines you should:

5 / 40

What school bus accidents should be reported?

6 / 40

What should you do if you start a trailer skid?

7 / 40

Air tanks should be drained:

8 / 40

Signs of distracted drivers include:

9 / 40

Select when you should use the parking brake:

10 / 40

Buses may carry small-arms ammunition labeled ORM-D, emergency hospital supplies, and drugs. However, buses must never carry:

11 / 40

The interlock system for the brake and accelerator on a transit coach may be used:

12 / 40

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

13 / 40

Five hazard classes that require placarding in any amount are ______.

14 / 40

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

15 / 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?

16 / 40

Buses may NOT have recapped or regrooved tires:

17 / 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:

18 / 40

How do you hook a combination to a second trailer without spring brakes and without using wheel chocks?

19 / 40

While driving on a clear night with low beam headlights, you should be able to stop within:

20 / 40

If the hazardous materials are classified as FORBIDDEN you should:

21 / 40

What does the drain valve for air tanks remove?

22 / 40

If you are transporting cargo, you should inspect the cargo and securing devices:

23 / 40

An "A/W" the first column of the hazardous materials table means:

24 / 40

The method for testing hydraulic brakes for leaks is to _____.

25 / 40

Select the correct description for a bulkhead tank.

26 / 40

The gauge that needs to come up to normal levels after starting the engine within a few seconds is _____.

27 / 40

Select the inappropriate way to test for the low pressure warning signal.

28 / 40

Select the definition for outage:

29 / 40

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

30 / 40

Which of the following is NOT an acceptable type of marking for hazardous materials?

31 / 40

What can side to side surge cause?

32 / 40

What is the correct number of red reflective triangles that you should carry?

33 / 40

How should you inspect a converter dolly?

34 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

35 / 40

Overhead inside mirror is used to:

36 / 40

The best way to have control on curves is:

37 / 40

What does the service brake system do?

38 / 40

What is always required before loading, driving, or unloading a tanker?

39 / 40

An example of a low pressure warning signal for air brakes is:

40 / 40

How many different hazard classes are there?

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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.