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

Which seats must have a seat belt:

The driver's seat.

All of these answers are correct.

Women and children seats.

Senior citizen seats.

2 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

Place transmission in park or neutral and set parking brake.

Open the service door just enough to activate the alternating red light when traffic is in a safe distance from the bus.

Make a final check to confirm all traffic stops before opening the bus door and signaling students to approach.

Activate the amber flashing caution lights to warn vehicles that the bus will stop to load passengers soon.

3 / 40

Select what you should do before leaving the vehicle unattended:

remove the keys from the ignition

chock the wheels

all of these answers are correct

apply the parking brakes

4 / 40

What are slack adjusters?

they are a part of the air brake system that adjusts the brakes

they are between the S-Cam on drum brakes and the push rod

all of these answers are correct

they are between the push rod on disc brakes and power screw

5 / 40

What does the drain valve for air tanks remove?

air and oil

oil and dirt

oil and water

water and air

6 / 40

What are shippers trying to accomplish when they package the material?

All of these answers are correct.

Make it easy to open and close.

Make it easy to identify.

Make it as light as possible.

7 / 40

When stopped on a divided highway where should your reflectors be placed?

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

20 feet, 150 feet, and 300 feet toward the approaching traffic

30 feet, 100 feet, and 150 feet toward the approaching traffic

15 feet, 75 feet, and 150 feet toward the approaching traffic

8 / 40

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

Open window in warm weather.

All of these answers are correct.

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

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

9 / 40

Why is understanding the loading and unloading procedures so critical?

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

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

Because motorists ignore students walking to school.

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

10 / 40

A placarded vehicle must carry what type of fire extinguisher?

One with a rating of 10 a/b minimum.

One with a rating of 5 a/b minimum.

One with a rating of 10 b/c minimum.

One with a rating of 5 b/c minimum.

11 / 40

In Column 1 the symbol "I" means:

International restrictions.

Iodine.

International transportation.

Invalid substance.

12 / 40

Select the true statement in regards to driving a truck with triple or double trailers:

the truck requires increased following distance compared to smaller vehicles

the risk of trailer jackknifes and tipping is increased compared to shorter trucks

extra care should be taken when driving in bad weather and in the mountains

all answers listed

13 / 40

What does the air compressor governor control?

when the air is taken out of the hoses

when the valve system releases pressure

when air is pumped into the air tanks

when air pressure is applied to the brakes

14 / 40

Suspension systems:

keep the brake drums from failing

keep the load secure

keep the steering wheel tight

keep the axles in place

15 / 40

What is the standee line?

A 2 inch line on the floor that all passengers must stay behind.

A line at the back of the bus where passengers must stand before exiting.

A line around each seat to help each passenger have a little personal space.

A 2 inch line down the aisle to help keep passenger traffic flowing.

16 / 40

Select the statement that is not part of the air-brake system:

service brake system

clutch brake system

emergency brake system

parking brake system

17 / 40

Which two special conditions indicate that you should downshift?

starting up a hill and entering a curve

starting up a hill and finishing a curve

starting down a hill and entering a curve

starting down a hill and finishing a curve

18 / 40

How do you hook a combination to a second trailer without spring brakes and without using wheel chocks?

disconnect the air supply lines after supplying air to the trailer air system via the tractor

make sure the trailer won't roll when coupling

go ahead and couple it

have the trailer electric cord to a generator so it can supply braking power

19 / 40

Which of these statements about signaling is correct?

Signal your intentions early and continuously.

Leave your signal on long after you've changed lanes.

Signaling is a warning, not a request.

Signal to others that it is safe to pass your bus.

20 / 40

You do not have a hazardous materials endorsement on your commercial driver license. When can you legally haul hazardous materials?

Only when the vehicle does not require placards.

Only when the shipment does not cross state lines.

Never.

Only in the event of a federally declared emergency situation.

21 / 40

How many different hazard classes are there?

22 / 40

What is the next step after securing the bus when you have an unruly child on board?

Unload the student at the next stop.

Stand up and speak respectfully to the offender, if a change of setting is needed, have the student move to a seat near you.

Call school administrator or the police to remove the student.

Remove the student from the vehilce for the safety of the other children.

23 / 40

How often should you check the tires if your placarded trailer has dual tires?

Check tires every 2 hours or 100 miles.

Check tires every 4 hours or 200 miles.

Check tires every 3 hours or 150 miles.

Check tires every hour or 75 miles.

24 / 40

How should the trailer be lined up when preparing to back the tractor up?

about 12 degrees to the right

about 12 degrees to the left

directly in front of the trailer

directly behind the trailer

25 / 40

You should have the fifth wheel plate greased as recommened because:

it will prevent steering problems

it will ensure a good electrical connection

it will reduce noise and heat

it will ensure a good air line connection

26 / 40

What are the dividers that are inside tankers that have an opening at the bottom and top?

Baffles

Taffles

Layers

Bulkmets

27 / 40

When would a drive-wheel skid result in a jackknife when pulling doubles?

when the tractor brakes lock up

when the trailer pushes the towed vehicle sideways

when the trailer slides to the right into the shoulder

when the tractor spins around

28 / 40

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

threaded through the locking lever

above the locking lever

below the locking lever

sticking straight up

29 / 40

When a substance in the materials table is written in italics it means :

It is a foreign substance.

The substance is for international transport.

It is not the proper shipping name only those in roman type above it are proper shipping names.

It is the proper shipping name.

30 / 40

A drawbridge does not have a traffic light showing green or a traffic control attendant. How many feet before the draw of a bridge must a bus driver stop?

At least 75 feet.

At least 50 feet.

At least 25 feet.

At least 100 feet.

31 / 40

Which hazard classes must you NEVER smoke, or perform any activity involving fire, within 25 feet of?

Classes 1, 2, 3, and 4

Class 2 only

Class 1 only

Class 4 only

32 / 40

Liquid surge affects the handling of a tanker by:

Allowing you to stop faster.

Moving the truck in the direction of liquid flow.

Decreasing the wind drag.

Allowing you to take tighter turns.

33 / 40

The minimum tread depth for steering axle tires is:

None of the answers listed

2/23 inch

4/32 inch

14 mm

34 / 40

Secure baggage and freight in ways that avoid damage and:

Allow riders to exit by any window or door in an emergency.

Allow the driver to move freely and easily.

All of these answers are correct.

Protect riders from injury if carry-ons fall or shift.

35 / 40

Select the true statement about tractor protection valve:

all of these answers are correct

it is closed by the parking brakes

it provides the air supply to the brake system

if the air supply drops to a certain level it will automatically close itself

36 / 40

In the event of a tire failure you should...

stay off the brake and hold the steering wheel firmly

accelerate quickly until you find a place to pull over

disengage the clutch so you are in neutral gear

pump the brakes until you come to a stop

37 / 40

Which signals may be used to warn of a stopped vehicle that contains explosives?

Signal fires

Reflective triangles

Flares or fuses

All of these answers are correct

38 / 40

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

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

it could cause the trailer to skid

it releases too much air from the system

the trailer brakes will not be evenly applied

39 / 40

The walls that separate compartments inside the tanks and having openings at the top and bottom are called:

Free walls

Bulktears

Layers

Baffles

40 / 40

How should you inspect a converter dolly?

as if it is an axle with a fifth wheel

as if it is an engine

as if it is a trailer

as if it is cargo

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