CDL Practice Test


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

Which trailer should be the first one after the tractor?

2 / 40

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

3 / 40

Which of the following parts do not get checked in the Bus Interior inspection:

4 / 40

To test the tractor-trailer connection for security, you should:

5 / 40

Where are the two main places where the hazardous material identification number appears?

6 / 40

Some school busses are marked with the LNG placard. What does LNG stand for?

7 / 40

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

8 / 40

When checking for_____you are looking for dripping fluids or puddles on the ground below the transmission or engine.

9 / 40

Select the true statement about baffled tankers:

10 / 40

What is a passive railway crossing?

11 / 40

This carries hydraulic fluid or air to the wheel brake assemby.

12 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

13 / 40

You should keep a minimum of ____between another vehicle and the double trailer with 100 ft truck driving at 30 mph.

14 / 40

You should____in order to inspect the coupling.

15 / 40

Which of the following statements about downshifting is NOT true?

16 / 40

When driving tank vehicles you should:

17 / 40

The school bus driver may be the only contact person from school system some parents meet. The percentage of such parents is as high as:

18 / 40

A commercial motor vehicle (CMV) is defined as:

19 / 40

What does it mean when the safety valve releases air?

20 / 40

Why is understanding the loading and unloading procedures so critical?

21 / 40

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

22 / 40

A tractor should not be backed under a trailer until the whole air system is:

23 / 40

Air pressure loss in a vehicle with a fully charged air system should be less than_______after the initial drop and brake applied.

24 / 40

Drivers placard their vehicle to _____ the risk.

25 / 40

You can be sure air is supplied to the second trailer by:

26 / 40

Drivers who transport route controlled radioactive materials must carry a dated certificate of radioactive materials training. This training must have ocurred within the last:

27 / 40

How do you check the power steering fluid?

28 / 40

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

29 / 40

You should turn off your engine when loading flammable liquid unless:

30 / 40

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

31 / 40

Overhead inside mirror is used to:

32 / 40

Select the true statement about retest markings:

33 / 40

When arriving at the destination announce:

34 / 40

In the slide mechanism of the sliding fifth wheel, this object should have no missing pins or be loose when fully engaged.

35 / 40

You should be extra cautious when___while driving a smooth bore tanker combination.

36 / 40

What should the driver pay special attention to when driving smaller tanks?

37 / 40

The bus driver must accept responsibility for supervising and controlling students while on the bus route. Who is the person in charge?

38 / 40

Forward and back surge is powerful in this type of tanker.

39 / 40

You are checking the_______when looking at the dipstick to see if the lubrication is at the safe operating range or above the refill line.

40 / 40

The two other places where the hazardous identification number must appear are:

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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.