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

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

put the gears in neutral

look for an escape ramp or an escape route

downshift

pump the brake pedal

2 / 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.

All answers listed.

The higher center of gravity on a tank truck.

The posted speed limit may be too high for safety.

3 / 40

It is important to know the outage required for the liquids you carry because:

None of these answers are correct.

Tank baffles may not always be permitted with outage.

Some liquids will expand more than others when warm.

Some of the denser liquids don't need any.

4 / 40

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

the lines are hotter

longer reaction time

none of the answers listed

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

5 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

no matter how you turn the steering wheel, the rig will continue in a straight line

there will be a trailer jackknife

nothing will occur

the rig will slide sideways but stay in a straight line

6 / 40

You should brake on a long steep downgrade hill as a supplement to the braking effects of the engine

when the GVCW is above 20,000 lbs

yes

when the vehicle is runaway

7 / 40

Surge affects the handling of a tanker by:

Allowing you to take tighter turns.

Increasing the wind drag.

None of the answers listed.

Moving the truck in the direction the liquid flows in.

8 / 40

What should you hook up before backing a tractor to a trailer for coupling?

there is nothing to be hooked up

the electrical service line

the service and emergency air lines

the safety bar

9 / 40

Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?

Your spouse

The shipper

The carrier

The driver

10 / 40

You must control how far packages labeled "Radioactive II" or "Radioactive III" are located from people and cargo space walls by referring to:

The segregation and separation chart.

The transport index and the separation distances table.

The table of hazardous materials.

The list of hazardous materials and reportable quantities.

11 / 40

Which seats must have a seat belt:

Senior citizen seats.

The driver's seat.

Women and children seats.

All of these answers are correct.

12 / 40

If you are required to stop at railroad crossings, you must:

Proceed only when you are sure no train is coming.

All of these answers are correct.

Stop 15 to 50 feet before the nearest rail.

Remember to never shift gears while crossing tracks.

13 / 40

To maintain alertness during the trip, drivers should:

schedule trips during the daytime hours

avoid medications that cause drowsiness

all of these answers are correct

get 8-9 hours of sleep

14 / 40

What should you hear when you have the hand valve on and are testing the trailer brakes by opening the service air line at the back of the trailer?

the emergency line valve to release air

the service brakes more to a fully applied position

the engine brake to kick on

air leaving the open valve

15 / 40

Which of the following is NOT something you need to know in order to determine if you need to use placards?

The substance or material's hazard class.

The amount of all hazardous materials of all classes in your vehicle.

The amount of a substance or material being shipped.

The manufacturing date for the materials.

16 / 40

What is the best way to stop all skids?

accelerate and countersteer

restore traction back to the tires

quickly turn the steering wheel side to side

use controlled or stab braking

17 / 40

Select the part that is not a part of the drum brake:

brake drum

axle

safety valve

slack adjuster

18 / 40

Which of the following statements about special danger of loading and unloading is true?

Students should be told to leave any dropped objects and move to the point of safety out of danger and get the driver's attention to retrieve the object.

Students should be told to pick up any dropped objects as long as it is not under the bus.

Students should be told to remain seated while the bus is in motion.

Students should be told not to use the handrails when exiting the bus due to the possibility of causing a clothing hang up.

19 / 40

Double and triple trailers should be driven with care to avoid a rollover or jacknife.

only on downgrades

true

only in ideal conditions

false

20 / 40

Water is drained from the compressed air tanks because:

to keep the oil in the air compressor clean

the water will over cool the compressor

braking power is decreased due to the low boiling point of water

the water could freeze in cold weather and cause braking failure

21 / 40

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

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

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

you do not need to do a visual check

visually check that they are level height wise

22 / 40

Select the true statement about retest markings:

They must be stamped on the tank.

It shows what type of inspection or test was completed.

All answers listed.

Must have a date of the last retest marked.

23 / 40

When driving a combination vehicle, the trailer breaks away severing the air lines. The trailer brakes should come on and ____.

the tractor will gain air pressure

the tractor protection valve will close

the tractor to lose all air pressure in the tanks

the trailer supply valve will remain open

24 / 40

The two main things to look ahead for while driving are _____.

fire and flooding

traffic and road conditions

bridges and tunnels

truck stops and police

25 / 40

What kind of surge can occur in a tank with baffles?

Bottom to top

Side to side

All answers listed

Back to front

26 / 40

You should___when driving down a long steep hill.

use the engine brakes only

release the brake once the vehicle is traveling 5 mph below the safe speed

begin braking once the vehicle is 10 mph above safe speed

repeatedly pump the brake pedal

27 / 40

How do you know when your brakes are fading?

the brake pedal flops to the cabin floor

your speed increases when pressure is removed from the brake pedal

to control your speed on a downgrade you have to apply less pressure to the break pedal

to control your speed on a downgrade you have to push harder on the brake pedal

28 / 40

You should____when an emergency requires you to quickly stop due to a crash.

use the hand valve

maintain pressure on the brake pedal

use stab or controlled braking

use only the engine brakes

29 / 40

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

30 / 40

A driver of a tank vehicle should take curves, off ramps, and on ramps at a speed lower than the posted speed limit.

True

True but only in ideal conditions

True but only in rainy conditions

False

31 / 40

You may use DANGEROUS placards instead of separate placards for each Table 2 hazard class when:

The correct answer is not listed.

You have not loaded 2,205 pounds or more of any table 2 hazard class material at any one place (you must use the specific placard for this material).

You have 1,001 pounds or more of two or more table 2 hazard classes, requiring different placards.

Both of these conditions must be met.

32 / 40

Play of the steering wheel should not exceed:

10 degrees

30 degrees

15 degrees

5 degrees

33 / 40

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

driving up a hill

stopping and starting

unloading or loading

driving down a hill

34 / 40

Select the accurate statement in regards to rolling up the landing gear to complete the coupling process.

you should use a low gear until the tractor is supporting the trailer

you should use a high gear to make the process faster

you should leave the landing gear at the half way mark to make the uncoupling process easier later

you should grease the landing gear the increase the speed of the process

35 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

An automatic failure of the vehicle inspection test.

None of the answers listed.

A deduction of 15 points.

The driver must restart the pre-trip from the beginning.

36 / 40

Always try to back toward the driver's side because

all of these answers are correct

it's more comfortable for turning your neck

your truck will naturally pull toward the driver's side

you can see better, watching the vehicle rear out the side window

37 / 40

Which of the following is a clue another driver is impaired:

All of these answers are correct.

Open window in warm weather.

Exiting the interstate when there's no gas station visible.

Stopping at a green light, or waiting too long at a stop.

38 / 40

What should you hear when you test the trailer brakes by opening the service air line at rear of trailer with the hand valve on?

none of the answers listed

the service brakes will move to a fully applied position

the emergency air line will release air

you should hear air escape from the open valve

39 / 40

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

the tractor relay valve

the engine protection valve

the air compressor

the one-way check vavle

40 / 40

Class A explosives must not be transported in a combination vehicle if the vehicle includes:

A 200 inch wheelbase trailer.

None of these answers are correct.

A placarded cargo tank.

Two or more trailers.

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