How Do I Earn a Class A CDL in Oregon?

You will need a Class A CDL if you plan on driving any vehicle with a weight of over 26,000 pounds and a detachable trailer. This includes most tractor-trailers and semi-trucks. In addition to passing the general knowledge test, you will also need to take the combinations vehicle endorsement test. You will also need to pass a road skills test in a Class A qualified vehicle.

How Do I Earn a Class B CDL in Oregon?

A Class B CDL is required if you are going to be driving any vehicle that weighs more than 26,000 pounds and the trailer is not detachable, like trash trucks and most dump trucks. Because the trailer cannot detach you will not need to pass the additional combination vehicle endorsement exam, however, if your vehicle has air brakes, you will need to pass that endorsement test. You will also need to perform and pass your road skills test in a qualified Class B vehicle.

How Do I Earn a Class C CDL in Oregon?

Requirements for a Class C CDL depend entirely upon which type of vehicle you will be driving. For example: If you are driving a passenger bus, you will need to take the passenger transport endorsement test. If you’re driving a school bus, you will need the passenger transport endorsement as well as the school bus endorsement. There is also a separate endorsement for hazmat vehicles, and you will need to provide whichever vehicle you intend to drive for your road test.

How do you test the service brake stopping action?

Drive at around 5 mph and push the brake pedal firmly

Drive at around 20 mph and push the brake pedal firmly

Push the brake pedal while standing still, see if it feels "normal" as you push it

Drive at around 35 mph and push the brake pedal firmly

Why must the emergency and parking brake use a mechanical force rather than air pressure or hydraulic fluids?

As a mechanical force cannot leak

As air pressure becomes less effective in warm weather

As air pressure becomes less effective in cold weather

How should you use brakes on a long and steep decline?

As a supplement to the braking effect from engine braking

By using them as the main braking component over the braking effect from engine braking

When the rear wheels follow a shorter path across a turn than the front wheels

When the front wheels move off the paved part of the road

When the front wheels follow a shorter path across a turn than the rear wheels

When the rear wheels move off the paved part of the road

Which of the following is true in regards to turning a large vehicle?

The last trailer will off-track the most

The tractor should turn close to the curb

Turning wide using multiple lanes is prohibited

When the front wheels move off the paved part of the road

Why is it very important to correctly lock the latch when coupling a pintle hook?

Failure may lead to separation of the trailer and vehicle

Failure may lead to an air pressure drop in the brake system

Failure may lead to the emergency brakes being activated

Failure may lead to the brake system not working correctly

If you mistakenly connect the wrong glad hands to each other on a vehicle without spring brakes:

You will be able to drive but not brake

You won't get air to the tractor

You will be able to brake but not drive

You uncouple the triple-trailer rig by:

Pulling the dolly out and then unhitching the dolly

Keeping the dolly in place and uncoupling as you would any double-bottom rig

If you want to connect the converter hook to the front trailer:

Reverse the first semitrailer into place in front of the dolly tongue

Hook the dolly to the front trailer

Lock the pintle hook and secure the converter gear support in the raised position

Which of the following is NOT part of the additional check you need to do for double/triple trailers before you drive?

Make sure the rear converter dolly air tank drain valve is open

Make sure the pintle hook is latched

Make sure the safety chains are secured

Make sure the light cords are connected to the sockets

Which of the following is not part of uncoupling the converter dolly?

Applying the spring brakes or chocking the wheels

Releasing the pintle hook on the first semi-trailer

After a vehicle inspection, the motor carrier has to:

Repair any items that may affect safety

Repair any item that were found during the vehicle inspection

Repair only selected items deemed necessary

What is Gross Vehicle Weight Rating (GVWR)?

The value specified by the manufacturer as the loaded weight of a single vehicle

The total weight of a single vehicle including its load

The total weight of a combination of vehicles including the load

The value specified by the manufacturer as the loaded weight of a combination vehicle

At a crash scene, what can you do to help a person who’s unconscious?

Check that the person is breathing normally

What is outage or ullage?

The amount a liquid tank falls short of being full

The amount a gas tank falls short of being full

The amount of excess fuel the HazMat vehicle must have for safe transportation

The max. amount of explosives that may be carried on a specific HazMat vehicle

The role of a professional driver at the scene of an accident is to:

Communicate the danger of HazMat to emergency personnel

Provide emergency personnel with the shipping papers and emergency response information

What should you do if asked to load Division 6.1 (cyanides) with 10 pounds of acid?

Inform them that these products must be loaded in different cargo spaces

Load them on opposite ends of the cargo

What do you need to know to decide which placards to use?

The weight of all classes of HazMat being transported

The amount of each hazard being transported

The hazard class of the materials being transported

Shows how close you can load Class 7 (radioactive materials) to other materials

Shows the recommended materials to transport with packages of Class 7 (radioactive materials)

Shows the height and width of the package

You are driving and notice your seating position is uncomfortable. When should you adjust your seating position?

After dropping off all passengers

You come upon a drawbridge with a green traffic light. What should you do?

Proceed slowly and make sure the drawbridge is safe to cross

Stop before the drawbridge and manually inspect the bridge to make sure it is safe to cross

What do you have to inspect the emergency exits for during the pre-trip inspection?

Emergency exits should operate smoothly, close securely from the inside, and be without damage

The release handle of an emergency exit should be operated properly from both inside and outside the school bus

Red lights or other emergency exit warning devices must be working properly

How can you make sure the locking jaws are functioning properly?

By looking into the fifth-wheel gap to see that the locking jaws are closed around the kingpin

By driving the vehicle quickly forward and testing the locking jaws

By feeling with your hand inside the fifth-wheel gap to check that the locking jaws are closed around the kingpin

As you approach the vehicle, look for:

Coolant, oil, grease or fuel under the vehicle

The vehicle leaning to one side or the other

In a static leakage test:

You will check the level of leakage when the brakes are not applied

You will check the level of leakage when the brakes are applied

Which of these alternatives do you NOT have to check when inspecting the steering system?

Steering wheel - must not be frayed or look worn

Steering box - the box must be securely mounted, without missing parts, and not leaking

Steering hoses - look for damage to the power steering hoses or power steering fluid leaks

Steering linkage - all connecting links, arms, rods etc. must be present and not cracked or worn

You are preparing to leave after unloading students. When should the alternating flashing red lights be turned off?

Just before you pull away from the unloading area

As soon as you have unloaded the students

Approximately 100 feet after you have started driving again

You have finished your route. Why should you walk through the school bus before leaving it?

To look for stuff left on the bus

To look for vandalism and open windows or doors

How will you know that something is not working with the ABS?

The ABS-lamp stays on after bulb-check

The ABS-lamp comes on at start-up

Which of the following is NOT part of the unloading procedures on a route?

Ask students to walk 5 feet away from the bus

Count all students in the bus so you can keep track of how many students are leaving / entering the bus

Account for all students before you leave

Ensure all students remain seated until told to exit

What is considered "enough outage"?

When the tank will not be full at 130 degrees Fahrenheit

When the tank will not be full at 50 degrees Fahrenheit

When the tank will not be full at 80 degrees Fahrenheit

When the tank will not be full at 110 degrees Fahrenheit

What is a smooth bore tank?

Smooth bore tanks is an unbaffled tank

Smooth bore tanks have baffles inside that slow down the flow of the liquid

Free Oregon CDL Practice Tests 2023

Ace your OR CDL tests easily on the first try using our popular CDL course. Select general knowledge and/or all necessary endorsement tests below:

General Knowledge Practice Test

Official test facts

Passing score: 80 %
Number of questions: 50
Correct answers needed to pass: 40
Length: 60 min

Hazardous Materials Practice Test

Official test facts

Passing score: 80 %
Number of questions: 30
Correct answers needed to pass: 24

Double and Triple Trailers Practice Test

Official test facts

Passing score: 80 %
Number of questions: 20
Correct answers needed to pass: 16

Tanker Vehicles Practice Test

Official test facts

Passing score: 80 %
Number of questions: 20
Correct answers needed to pass: 16

Air Brakes Practice Test

Official test facts

Passing score: 80 %
Number of questions: 25
Correct answers needed to pass: 20

Combination Vehicles Practice Test

Official test facts

Passing score: 80 %
Number of questions: 20
Correct answers needed to pass: 16

Passenger Vehicles Practice Test

Official test facts

Passing score: 80 %
Number of questions: 20
Correct answers needed to pass: 16

School Bus Practice Test

Official test facts

Passing score: 80 %
Number of questions: 20
Correct answers needed to pass: 16

Pre-Trip Inspection Practice Test

How Difficult are the CDL Exams?

That depends on how well you’ve prepared. If you’ve just tried to memorize the manual, the CDL exams may be harder than they need to be.

With Zutobi, you can learn test-relevant material in a way that’s easy to understand and, therefore, easy to remember. If you've practiced using our state-specific CDL practice tests, you can walk in on test day with full confidence because you will have already seen all of the questions they could throw at you.

The Oregon CDL manual is based on the same template and federal regulations from the FMCSA (Federal Motor Carrier Safety Administration) that is used by all states. The CDL manual, tests, and regulations are nearly identical across the US with only minor differences.

All CDL applicants must successfully complete driver training from an FMCSA-approved provider if getting a class A or class B CDL, or an H, S, or P endorsement. Zutobi is an FMCSA-approved theory provider.

Pass Your Oregon CDL Tests With Zutobi

There are several steps to earning your commercial driver’s license in any state, and that includes taking and passing the CDL general knowledge exam and the necessary endorsement exams. Zutobi is your study guide for all things CDL-related.

Up-to-date Oregon CDL practice tests that are designed to mimic the real written exam. You’ll be fully prepared for the real thing because you’ll have seen it before.
Detailed statistics will let you quickly identify your weak areas and the exact topics you need to improve on.
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Each practice test question comes with an answer and a detailed explanation that allows you to learn from your mistakes.
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Perhaps most importantly - we’ll help you get your CDL on time. Delaying as little as a week or month can result in a big hit to your earnings.

FMCSA Certificate

Zutobi is an approved FMCSA theory provider for all 50 states and Washington D.C.
After completing a CDL module, we will electronically notify the TPR that you are eligible to sit the corresponding test.

Try Our FREE Oregon CDL Practice Tests Today

Test your knowledge with our free Oregon CDL practice tests now and then take a look at our popular course for commercial drivers. Zutobi is specially designed to help you earn a passing score on your CDL general knowledge exam and endorsement tests on your first try.

Ace your DMV test, guaranteed

Free Oregon CDL Practice Tests 2023

General Knowledge Practice Test

Official test facts

Hazardous Materials Practice Test

Official test facts

Double and Triple Trailers Practice Test

Official test facts

Tanker Vehicles Practice Test

Official test facts

Air Brakes Practice Test

Official test facts

Combination Vehicles Practice Test

Official test facts

Passenger Vehicles Practice Test

Official test facts

School Bus Practice Test

Official test facts

Pre-Trip Inspection Practice Test

How Difficult are the CDL Exams?

Pass Your Oregon CDL Tests With Zutobi

FMCSA Certificate

Try Our FREE Oregon CDL Practice Tests Today

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