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 might happen if you swing wide to the left before you turn right?

someone might try to pass you on your right

someone might try to pass you on your left

all of these answers are correct

you might damage your leaf springs

2 / 40

Which of the following statements about loading and unloading cargo tanks is false?

The person in attendance must be aware of the danger.

The person in attendance must be authorized and able to move the vehicle.

The person in attendance must be within 50 ft of the tanker.

The person attending the tanker must have a clear view of it.

3 / 40

What action should you take before driving while drowsy?

open your vehicle windows for some fresh air

drink a cup of coffee

pull off the road and get some sleep

drink energy drinks

4 / 40

What keeps air in the tanks should the air compressor develop a leak?

the tractor relay valve

the air compressor

the engine protection valve

the one-way check vavle

5 / 40

How do you secure a second trailer to your combination vehicle?

use wheel chocks only

use the emergency air brakes or the trailer's spring brakes only

none of the answers listed

use emergency air brakes, spring brakes, and wheel chocks together

6 / 40

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

it takes more time for the air to flow through the lines

none of the answers listed

the lines are hotter

longer reaction time

7 / 40

The designation RQ identifies the material's:

Reference quotient

Reportable quantity

Regulatory quantity

Regulatory quotient

8 / 40

What are the 3 methods for securing a second trailer before coupling?

parking against another trailer, locking the trailer door, and chocking the tires

chocking the tires, parking on level ground, and charging the air tank

parking on level ground, chocking the tires, and charging the trailer air tank if it doesn't have spring brakes

all answers listed

9 / 40

You are required to have a tank endorsement when transporting:

Passengers

Materials that are hazardous

Bulk fertilizer

Gas or liquid

10 / 40

Which of the following is NOT a part of the steering system?

tie rod

main spring

steering knuckle

hydraulic fluid reservoir

11 / 40

What are spring brakes?

they are large springs that are held closed by air pressure if the air pressure is increased the brakes are applied

none of the answers listed

they are big springs with air pressure in them if the air pressure decreases, the brakes are applied

they are powerful springs that are restrained by air pressure when the air pressure is removed, the brakes are applied

12 / 40

The object that doesn't get checked at the side of the trailer is the:

The frame

The landing gear

Electrical/air connections

The locking pins/tandem release arm

13 / 40

Select the true statement in regards to as why you should make sure the fifth wheel plate is greased as recommended:

To decease heat and noise.

To make sure that uncoupling easier.

To prevent any steering problems.

To make sure the electrical connections are good.

14 / 40

There must be a hazardous materials identification number on the ______ and on the ______.

shipping papers, package

invoice, shipping papers

package, trailer

trailer, packages

15 / 40

Where is compressed air stored?

in the hose lines

in the compartment for the engine

in the gasoline tank

in the storage tank

16 / 40

At the end of each shift you should:

Inspect your bus.

Report any defects.

All of these answers are correct.

Report any damage.

17 / 40

If there is rust around the nuts, what may it indicate?

They are loose.

There is a leak somewhere.

They are fitted just right.

They need to be changed out.

18 / 40

Which of the following are possible causes of tire fires?

loose fuel connections or under-inflated tires

improperly loaded cargo and dual tires that touch

dual tires that touch and under-inflated tires

poor cargo ventilation or short circuits

19 / 40

When driving with multiple trailers, which one should be right behind the tractor?

the trailer with the heaviest load

the trailers shortest in length

the trailer with the smallest road

the trailer longest in length

20 / 40

Select the true statement about baffled tankers:

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.

None of the answers listed.

21 / 40

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

The baffles create odd rocking motions.

The high center of gravity of the load.

The low center of gravity of the load.

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

22 / 40

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

Down and that the handle is secured.

Raised and that the handle is secured.

Down and that the handle is hanging free.

Raised and that the handle is hanging free.

23 / 40

Which trailer is most likely to turn over when you make a sudden turn while pulling doubles?

trailers will never turn over

the rear trailer is twice as likely

the front trailer is twice as likely

there is an even chance for either trailer

24 / 40

Your bus starts to lean toward the outside on a banked curve, you are:

Driving on a wet surface.

Driving too fast.

Driving with bad tires.

Driving in the mountains.

25 / 40

Which of the following statements about bus evacuation is true?

If time allows, walk through the bus and close all windows.

If time allows, notify the dispatcher about evacuation location, conditions, and type of assistance needed.

If time allows, notify the police.

If time allows, backup to the stop before evacuating the bus.

26 / 40

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

On the gas tank and a sticker in the glove compartment.

Any bulk packaging and the cargo tanks.

On the back of the truck and inside the glove compartment.

On a temporary license plate holder and the steering wheel.

27 / 40

What should you do before you begin to couple?

check your path for any hazards

activate the spring brakes

inspect the condition of the frame of the tractor

position the fifth wheel beforehand

28 / 40

Select the true statement about emergency steering and tankers:

Do not apply the brakes when making quick movements of the steering wheel.

Have a firm grip on the steering wheel before making quick movements of the steering wheel.

It is easier to counter steer than other vehicles.

None of the answers listed.

29 / 40

The minimum tire tread depth for front tires is:

3/8-inch

1/2-inch

1/32-inch

4/32-inch

30 / 40

Select the true statement about double or triple trailers.

all answers listed

they can roll over due to abrupt steering movements

they can have a dangerous "crack the whip" effect

they present a rearward amplification hazard

31 / 40

Which of the following materials would be an acceptable floor liner for moving Division 1.1 or 1.2 materials?

Non-ferrous metal

All of these answers are correct

Carbon steel

Stainless steel

32 / 40

Select when you should use the parking brake:

when you are leaving your vehicle for more than an hour

with rare exception, every time you leave your vehicle

when in residential areas

each time you leave your vehicle for any amount of time

33 / 40

The best way to go into a curve is to decrease your speed going into the curve and then ____going through it.

slightly accelerate

ride the brake

shift down 2 gears

none of the answers listed

34 / 40

Select the statement that tells you how you can check the low pressure warning signal.

Turn the electrical power on and apply pressure on and off the brake pedal to decrease the air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 60 psi in the air tank.

Turn the electrical power on and apply pressure on and off the brake pedal to increase air tank pressure. The low air pressure warning signal must come on before the pressure increases to more than 60 psi in the air tank.

The low pressure warning signal is only testable by the factory.

Turn the electrical power off and apply pressure on and off the brake pedal to decrease air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 30 psi in the air tank.

35 / 40

You should follow the posted speed limits for curves and be aware of:

A rollover may occur even when driving at the posted speed limit.

The higher center of gravity on a tank truck.

All answers listed.

The posted speed limit may be too high for safety.

36 / 40

A trailer is at the right height to have the tractor backed up to it when:

it'll raise slightly when the tractor is backed up under it

the kingpin is about 1 1/5 inches above the fifth wheel

the fifth wheel will not come in contact with the kingpin

the top of the kingpin is even with the bottom of the fifth wheel

37 / 40

Take extra caution when driving smooth bore tanks during:

Driving into the wind.

Stops and starts.

Drive down or up an incline.

All answers listed.

38 / 40

How far before a railroad crossing should you stop your bus?

50 to 75 feet

15 to 50 feet

10 to 35 feet

100 feet exactly

39 / 40

What is the earliest way to notice a trailer skid?

you can hear the tires squealing

you can see it in your mirrors

you can feel a jerk in the back of the tractor

you can feel it pulling your steering wheel

40 / 40

What is the safest way to stop unruly behavior on the bus?

have the unruly students move to the front of the bus

keep checking the rear view mirror so you can see what happened and report to the principal

yell loudly for the students to sit down and behave themselves

pull off the road in a safe location, secure the bus, stand up, and tell the students what behavior you expect of them

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