oregon
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

A tank trailer should never be fully loaded due to:

The baffles aren't as effective.

The movement is stronger.

The liquid can expand causing a leak from the trailer.

The will be more shifting of the load.

2 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

In a fire-safe pouch under the driver's seat that you can reach while you are driving.

On the driver's seat anytime you are outside of the vehicle.

In a locked glove compartment anytime you are outside of the vehicle.

In a fire-safe pouch under the passenger seat while you are driving.

3 / 40

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

pull off the road and park in an open area

find a service station to pull into

open the door and jump out of the vehicle

open the hood and let the flames die down

4 / 40

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

to prevent a runaway trailer

the trailer wheels are free to turn as there will be no service brakes should the air supply in the trailer air tank leak

to prevent someone from stealing the vehicle

the trailer wheels are free to turn as there will be no emergency brakes should the air supply in the trailer air tank leak

5 / 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.

coolant level

washer fluid level

battery fluid level

oil level

6 / 40

Before transporting a sealed load, you must check:

that you don't exceed gross weight and axle weight limits

a small sample of whatever is inside

all of these answers are correct

a picture of whatever is inside

7 / 40

Select the reason as to why you should not use the trailer hand valve while driving.

the trailer brakes will not be evenly applied

it releases too much air from the system

it could cause the trailer to skid

it should not be used on dry roads due to road conditions

8 / 40

Air tanks need to be drained:

to prevent water and oil from building up in the tank

air tanks should absolutely never be drained

to keep the tanks warm when not in use

to keep the tanks cold when not in use

9 / 40

Select the true statement about baffled tankers:

None of the answers listed.

It has separate tanks.

It has walls with holes inside for liquid to flow through.

It has hollow balls in it to slow the motion of the liquid in the trailer.

10 / 40

Select the true statement about converter dollies:

they typically require a glad hand converter

because of their small size they have little braking power

they usually do not have spring brakes

all answers listed

11 / 40

An air system that is fully charged will typically have ___ psi of pressure.

125

250

200

12 / 40

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

As a safety feature when the exit door is open.

To replace the rear door emergency buzzer.

To replace the parking brake.

All of these answers are correct.

13 / 40

Select the statement that is true in regards to managing space to the sides.

you should try to avoid driving next to others when possible

all answers listed

high gust winds do not cause any issues for triples and doubles

you should always keep your vehicle to the right side of the lane

14 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

The arm bar

The release arm

The locking pins

The apron

15 / 40

The Emergency Response Guidebook (ERG):

Is studied by emergency personnel to help keep the public safe.

All of these answers are correct.

Contains an index of hazardous material id numbers, which is why you must label things correctly.

Was created by the national department of transportation, so it is used nationwide.

16 / 40

One reason hauling liquids in tank vehciles require special care is:

Because of the movement of the liquid.

Because of strong winds.

Because of the extreme weight.

Because of uneven expansion.

17 / 40

Which trailer should be the first one after the tractor?

the trailer that weighs the least

none of the answers listed

the trailer that is the shortest in length

the trailer that weighs the most

18 / 40

Select the true statement in regards to the liquid inside of a bulk tank causing a tank truck to roll sideways.

All answers listed.

It can occur even with baffles inside that slow the flow.

It can occur even when driving at the posted speed limit.

It can occur when driving through a curve.

19 / 40

Signs of distracted drivers include:

individuals listening to music too loudly

drivers having conversations with passengers

vehicles exiting the roadway

individuals driving at a consistent speed above the speed limit

20 / 40

What is incorrect concerning disruptive passengers?

You must ensure the disurptive rider's safety as well as that of others.

It may be safer to wait and discharge the disruptive passenger at the next scheduled stop or a well-lighted area where there are other people.

Don't discharge such riders where it would be unsafe for them.

You must remove the disruptive passenger immediately for the safety of the others.

21 / 40

When approaching a school bus stop, you should:

Continuously check all mirrors.

All of these answers are correct.

Activate your overhead amber lights.

Gradually decrease speed until the stop.

22 / 40

Why is understanding the loading and unloading procedures so critical?

Because motorists ignore students walking to school.

Because school district officials have the authority to conduct surprise quizzes and you must know the correct answers to keep your job.

Because many students are killed while getting on and off a school bus each year.

Because only high school students understand how to cross the road.

23 / 40

Select the factors that can cause your brakes to fade or fail:

all of these answers are correct

using the service brakes excessively

the brakes are out of adjustment

not relying on engine braking enough

24 / 40

Vehicle handling can become unsafe if the weight is not properly balanced. Hard steering can be caused by:

under loaded front axles

high center of gravity

too little weight on the driving axles

too much weight on the steering axles

25 / 40

For Division 1.1 or 1.2 Explosives A, should the floor liner required be stainless steel?

Yes

Never use a floor liner for any explosive class

Any type of floor liner is sufficient

26 / 40

Which of the following is the proper definition of a cargo tank?

A bulk container which can be securely affixed to a vehicle.

A bulk container permanently attached to a vehicle.

A bulk container not permanently attached to a vehicle.

None of these answers are correct.

27 / 40

Which of the following is NOT an important reason to look far ahead when you are driving?

determine if there are any upcoming traffic lights that might require you to stop

look for vehicles coming into your lane

determine if there are any hills coming up

look for brake lights from slowing vehicles

28 / 40

Select the true statement in regards to empty trucks:

none of the answers listed

they may have poor traction due to bouncing and wheel lockup

they are easier to stop because there isn't cargo shifting in the trailer

they require a shorter stopping distance than a fully loaded trailer

29 / 40

What does the drain valve for air tanks remove?

oil and water

air and oil

water and air

oil and dirt

30 / 40

What product is typically carried in a liquid tank trailer without baffles?

Fertilizer.

Fuel.

Food or milk products.

Hydrogen peroxide.

31 / 40

Why are you required to take an exam about air brakes?

it is a federal requirement

all trucks have air brakes

you would have to get a CDL with a restriction otherwise

you cannot receive a CDL at all otherwise

32 / 40

Before pulling away, make sure the landing gear of the trailer is:

Raised and that the handle is secured.

Down and that the handle is secured.

Down and that the handle is hanging free.

Raised and that the handle is hanging free.

33 / 40

Select the reason as to why air tanks need to be drained:

to release water and other contaminents which may cause brakes to fail in freezing weather

tanks usually do not need to be drained

to provide greater control of your vehicle

to prevent the left sided brake from locking up

34 / 40

You must not allow riders to stand:

Within two feet of any window.

Within two feet of an emergency exit.

In front of the standee line.

Between the wheel wells.

35 / 40

In what position should the converter dolly air tank drain valve be in for double trailer combination?

in a 1/3 open position

in a closed position

in an open position

in a halfway closed position

36 / 40

Select how you would check the truck's slack adjusters.

brake hard after accelerating

listen for any strange noises while applying pressure to the brake pedal

while wearing gloves, pull hard on each slack adjuster that you can reach

all of these answers are correct

37 / 40

_____ create a little above 90 degree angle between the adjuster arm and push rod when the brakes are released and no less than 90 degrees when the brakes are applied.

slack adjusters

air lines

brake drums

brake disc

38 / 40

Which two special conditions indicate that you should downshift?

starting down a hill and entering a curve

starting up a hill and entering a curve

starting down a hill and finishing a curve

starting up a hill and finishing a curve

39 / 40

How often should you check the cargo you are transporting?

all of these answers are correct

within the first 50 miles after beginning a trip

after every break you take during driving

every 150 miles or every three hours

40 / 40

This object should be checked to make sure that the cap(s) are on tight, that it is secure, and there are no leaks.

Windshield fluid line

Exhaust system

Air coolant system

Fuel tank

Your score is

The average score is 0%

5/5 - (2 votes)

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.

oregon CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get An oregon Commercial Drivers License

Hit the Open Road

oregon CDL License Test Tips

Additional Information

Information on the Oregon Department of Transportation

Additional Oregon CDL Helpful Links

oregon
CDL Practice Test