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

What is a technical name?

The name for a hazardous material used in scientific journals and texts, recognized as its chemical and microbiological name.

The name for a hazardous material most commonly used on the street.

The name for a hazardous material most commonly used in the trucking community, accepted as standard.

The medical term for hazardous materials used by medical personnel.

2 / 40

This object should not move more than an inch by pulled by hand with the brakes released for manual slack adjusters.

The brake chambers

The brake pushrod

The bounce absorbers

The air lines

3 / 40

All standing riders must stay:

In front of the standee line.

Forward of the rear of the driver's seat.

Behind the standee line.

Within two feet of an emergency exit.

4 / 40

Select how brakes work on long, steep downgrades:

it's the main braking mechanism with the engine braking system available for emergency situations

they are a supplement to the braking effect of the engine

it does not do anything

it is the main braking mechanism

5 / 40

A tank trailer should never be fully loaded due to:

The liquid can expand causing a leak from the trailer.

The movement is stronger.

The baffles aren't as effective.

The will be more shifting of the load.

6 / 40

Where should you place your warning devices if you must stop on a one-way or divided highway?

50 feet, 100 feet, and 150 feet toward approaching traffic

10 feet, 100 feet, and 200 feet toward approaching traffic

100 feet, 200 feet, and 300 feet toward approaching traffic

20 feet, 50 feet, and 100 feet toward approaching traffic

7 / 40

Where is compressed air stored?

in the hose lines

in the compartment for the engine

in the storage tank

in the gasoline tank

8 / 40

Be careful to check the_____when unloading the smaller tanks of bulk heads.

weight distribution

the fuel to air ratio

percentage of alcohol

percentage of water

9 / 40

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

Brake drums

Connector rods

Brake lines/hoses

Slack pieces

10 / 40

The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.

sticking straight up

below the locking lever

above the locking lever

threaded through the locking lever

11 / 40

Overhead inside mirror is used to:

See the area where students exit the bus.

See all of the students.

See the blind spot immediately behind the bus.

Monitor traffic that approaches and enters the blind spot area.

12 / 40

You must not allow riders to stand:

Between the wheel wells.

In front of the standee line.

Within two feet of an emergency exit.

Within two feet of any window.

13 / 40

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

your mirrors

all of these answers are correct

rear view cameras

a helper

14 / 40

Select the true statement in regards to the center of gravity for tanks:

The center of gravity is generally lower than with other large trucks.

The vehicle can turn over even when driving at the posted speed limit for curves.

The vehicle can handle higher speeds around curves than other large trucks.

None of the answers listed.

15 / 40

Select the statement that best describes what the service line is for.

it is controlled by the foot brake and carries air

it is controlled by the trailer hand brake and carries air

it is controlled by the foot brake or trailer hand brake and carries air

all answers listed

16 / 40

The method for testing hydraulic brakes for leaks is to _____.

pump the brake pedal 5 times and apply firm pressure for 3 seconds the pedal should not move

all of these answers are correct

hold the brake down for 5 seconds and listen for leaks

pump the brake pedal 3 times and apply firm pressure for 5 seconds the pedal should not move

17 / 40

How many seats may be placed in the aisle if the bus is a charter and is carrying agricultural (farm) workers?

18 / 40

Suspension systems:

keep the axles in place

keep the load secure

keep the steering wheel tight

keep the brake drums from failing

19 / 40

Which of the following is a reason that shippers package material?

Because it is the shipper's responsibilty to choose the correct packaging for a material classified as "hazardous".

All of these answers are correct.

Because it is the shipper's responsibility to determine whether or not a material is hazardous.

Because it is the shipper's responsibility to correctly label the transport vehicle with precautionary placards.

20 / 40

How do you make sure the trailer height is correct before coupling?

visually check that they are level height wise

you do not need to do a visual check

visually check that the rear trailer is lower than the fifth wheel so that the trailer raises slightly when the dolly is pushed under it

visually check that the lead trailer is higher than the fifth wheel so that the trailer will lower when the dolly is pushed under it

21 / 40

What do you do first during step 3 of starting the engine and inspecting the inside of the cab?

Start the engine after getting in the cab.

Shift the gear to neutral.

Listen for any unsual noises after starting the engine.

Make sure the parking brake is activated after getting in the cab.

22 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

it depends on how heavy the load is

none

1 to 1 1/2 inches

1/2 to 1 inch

23 / 40

Shifting into a lower gear and removing your foot off of the accelerator to slow your vehicle is known as?

anti-lock braking

brake fade

double clutching

engine braking

24 / 40

Which of the following are some suspension system defects?

broken leaves in leaf spring

leaking shock absorbers

cracked or broken spring hangers

all of these answers are correct

25 / 40

It takes special care to drive tankers with liquid in them because:

The low center of gravity of the load.

The high center of gravity of the load.

The baffles create odd rocking motions.

The movement of the liquid even when the truck is stopped.

26 / 40

To avoid rollover when going through a curve, the best thing to do is:

Drive at a speed higher than the posted speed limit.

Ride the brakes through the curve.

Drive at a speed below the posted speed limit.

Pump the brakes through the curve.

27 / 40

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

have a drink to calm your nerves

put out warning devices so people don't run into the accident site

stay in your vehicle and do nothing until help arrives

leave your vehicle, do nothing, and get to higher ground

28 / 40

If you work for an interstate carrier:

None of these answers are correct.

If there are no defects, no report is necessary.

You must complete a written inspection report for each bus driven.

Only fill out report for buses with defects.

29 / 40

What are the three hazard classes should NOT be loaded into a trailer that has a heater air conditioner unit?

Class 1 explosives, class 3 flammable liquids, and division 21 flammable gas.

Class 2 explosives, class 3 flammable solids, and division 21 inhalation hazard.

None of these answers are correct.

Class 1 explosives, class 8 corrosives, and division 5 oxidizers.

30 / 40

You don't want to use wheel chocks when hooking a combination to a second trailer with no spring brakes. What should you do?

supply air to the trailer air system via the tractor and then disconnect the emergency line

make sure the trailer will not roll away when coupling

none of the answers listed

use a portable generator to supply brake pressure

31 / 40

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

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

brake hard after accelerating

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

all of these answers are correct

32 / 40

Where can you find a shipper’s certification?

On all packages.

On the original shipping paper.

It is a separate document that all hazmat drivers must keep in their vehicles.

There is no such thing.

33 / 40

This item should be firmly attached the to frame, be solid, and clear of objects:

None of these answers are correct answers are correct

The locking jaw

The catwalk

The lock pins

34 / 40

The pintle hook should be_____ and the converter dolly air tank drain valve is___when doing a walk around inspection of a triple or double trailer.

free, open

latched, closed

free, closed

latched, open

35 / 40

How should the hand valve be used?

only when the trailer is loaded to its maximum weight

to test the trailer brakes

only when accompanied by the foot brake

only when accompanied by the service brakes

36 / 40

What is a passive railway crossing?

The type of crossing, which does not have any type of traffic control device.

The type of crossing with no cross buck sign.

The type of crossing on which the driver does not have to stop.

The type of crossing where you can pass the tracks without stopping.

37 / 40

When does your vehicle's single brake system need an adjustment?

when the governor stops between 75-90 psi

when the pressure builds from 85 to 100 psi in less than 1 minute

if the pressure builds from 50 to 75 psi in less than 3 minutes

if the compressor cuts out at between 70 and 90 psi

38 / 40

You must have placards for explosives, poison gas or flammables exceeding:

100 pounds

10 cartons

Any amount

10 pounds

39 / 40

What placards, if any, do you need if your load includes 20 pounds of Division 2.3 gas and 1,001 pounds of flammable gas?

Just dangerous placards are required.

Poison 23 and flammable gas 21.

Poison 23 and dangerous.

None, you cannot load these materials together.

40 / 40

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

Seat coverings.

Emergency exit handles.

Each hand-hold and railing.

Signaling devices, including the restroom emergency buzzer, if the bus has a restroom.

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