oregon
CDL Practice Test

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Welcome to the Oregon CDL practice test site. You can take these practice test questions as many times as you like, as all of the driving practice tests on this site are completely free. The questions are all derived from the Oregon CDL driving manual and should help you prepare for the official Oregon CDL test. 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 the statement that best explains the "crack-the-whip" effect.

2 / 40

Select the true statement about double or triple trailers.

3 / 40

Which two special conditions indicate that you should downshift?

4 / 40

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

5 / 40

"Outages" is the word to describe the amount of space required for liquids to expand in as they warm.

6 / 40

Why do air brakes take longer to stop than hydraulic brakes?

7 / 40

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

8 / 40

If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?

9 / 40

What is most likely to occur when the front wheels begin to skid?

10 / 40

A driver that hauls hazardous materials must attend training every:

11 / 40

The driver's manual advises you to disconnect the steering axle brake to keep the rig straight:

12 / 40

Select the true statement in regards to driving a truck with triple or double trailers:

13 / 40

Is this statement true or false: You do not need to use the parking brake if are leaving your vehicle for a short amount of time.

14 / 40

Which of the following statements about the bus interior is false?

15 / 40

Select the load of the trailer that will require the shorter distance to stop.

16 / 40

Select the true statement in regards to converter dollies:

17 / 40

What gauge on the dashboard indicates electrical system charging rate?

18 / 40

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

19 / 40

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

20 / 40

Which of the following is NOT something you need to know in order to determine if you need to use placards?

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

With Division 1.2 or 1.3 Explosive B, how close to the travelled part of the roadway can you park?

23 / 40

What is the best way to stop all skids?

24 / 40

You should___when driving down a long steep hill.

25 / 40

When does stab braking occur?

26 / 40

Alcohol evaporators in some air brake systems help to:

27 / 40

If there is not a sight glass to check the oil level you are required to look for leaks around the _____.

28 / 40

To test the security of the tractor semi trailer connection you should:

29 / 40

Secure baggage and freight in ways that avoid damage and:

30 / 40

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

31 / 40

Select the true statement about speed and stopping distance.

32 / 40

You should___to reduce the air leakage rate.

33 / 40

The air leakage rate for combination vehicles should not be more than _ psi a minute.

34 / 40

Select the statement of what you should not do if you are required to drive through flowing water or deep puddles.

35 / 40

Select the true statement:

36 / 40

What should you hear when you test the trailer brakes by opening the service air line at rear of trailer with the hand valve on?

37 / 40

Select the definition for outage:

38 / 40

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

39 / 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?

40 / 40

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

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CDL Category Practice Tests

CDL Practice Test

How To Get An oregon Commercial Drivers License

To be eligible for a CDL in Oregon, applicants must meet the following age eligibility requirements.

  • Be at least 18 years old to operate a commercial vehicle intrastate (within Oregon only).
  • Be at least 21 years old to operate a commercial vehicle interstate (outside of Oregon).

Oregon CDL applicants must be medically certified that they are physically capable of operating a commercial vehicle and pass a vision test. Oregon applicants must have the forms signed by a CDL-certified doctor.

Applicants are required to submit Form MCSA-5876, a Medical Examiner’s Certificate and Form 735-7369, a Self-Certification of CMV Driving Type.

All required paperwork must be completed before applying for a CDL. These documents must be brought to the appointment at the Oregon Department of Motor Vehicles.

Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in Oregon. Applicants can be disqualified for having multiple licenses.

Oregon CDL Endorsements

  • H – Hazmat Vehicles
  • N – Tank Vehicles
  • P – Passenger Vehicles
  • S – School Bus
  • T – Double or Triple Trailer
  • X – Combination Tank Vehicles and Hazmat Vehicles

Hit the Open Road

oregon CDL License Test Tips

All Oregon CDL applicants must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the Oregon test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The Oregon skills test can be taken 14 days after applicants pass the knowledge test. It includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each section.

Military veterans and current military members can apply to have the skills exam waived if they meet the requirements.

To qualify for a waiver, applicants must:

  • Be active duty military personnel.
  • Operate a commercial vehicle as part of their military duties.
  • Have been discharged from the military within the past 12 months of applying for a CDL.
  • Submit an Application for CDL Skills Test Waiver.

Additional Information

Information on the Oregon Department of Transportation

The Oregon Department of Transportation administers CDL license regulations in Oregon. To get more information contact them via:

Website: https://www.oregon.gov/ODOT/DMV/Pages/DriverID/CDLget.aspx

Phone: 503.945.5000

 

Additional Oregon CDL Helpful Links

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