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

When there is a hazardous materials emergency. You should:

2 / 40

With the controlled braking method, you _____?

3 / 40

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

4 / 40

Water is drained from the compressed air tanks because:

5 / 40

What are spring brakes?

6 / 40

Which of the following would NOT be part of a standard vehicle inspection?

7 / 40

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

8 / 40

Where can you find a shipper’s certification?

9 / 40

Should your air compressor stop working:

10 / 40

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

11 / 40

How do you check the connection after locking the kingpin into the fifth wheel?

12 / 40

When should you drain air tanks that do not have an automatic tank drain?

13 / 40

The baffles in a tank trailer help to control:

14 / 40

Which of these is a good rule for backing a straight bus?

15 / 40

The amount of liquid you can carry depends on:

16 / 40

Select the true statement in regards to converter dollies:

17 / 40

Which of the following is a key steering component?

18 / 40

The most dangerous time during the school bus ride is:

19 / 40

Select the true statement in regards to large combination vehicles taking longer to stop.

20 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

21 / 40

What is the first thing to do if your vehicle catches fire while driving?

22 / 40

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

23 / 40

The brake pushrod should not move more than____for manual slack adjusters.

24 / 40

Which signals may be used to warn of a stopped vehicle that contains explosives?

25 / 40

What might happen if a trailer is too high when you try to couple?

26 / 40

Air tanks should be drained:

27 / 40

When not towing a trailer, why should the tractor glad hands be locked?

28 / 40

A placard is required for a combustible liquid at?

29 / 40

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

30 / 40

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

31 / 40

Which of the following statements about downshifting is NOT true?

32 / 40

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:

33 / 40

What does the service brake system do?

34 / 40

The trailer height is correct for connecting a converter dolly to a second or third trailer when:

35 / 40

Select the true statement in regards to a converter dolly:

36 / 40

What can you do at an accident site to help avoid another accident?

37 / 40

What gauge on the dashboard indicates electrical system charging rate?

38 / 40

Under which two special conditions should you downshift?

39 / 40

When backing, what is the best method to use to avoid blind spots?

40 / 40

You should brake on a long steep downgrade hill as a supplement to the braking effects of the engine

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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.