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 of the following would NOT be part of a standard vehicle inspection?

tire problems

steering system defects

seating defects

bad brake drums or shoes

2 / 40

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

open the hood and let the flames die down

open the door and jump out of the vehicle

pull off the road and park in an open area

find a service station to pull into

3 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?

Yes

Impossible to tell without more information

Only if the arm is down telling vehicles to stop

4 / 40

If there is no traffic light or attendant, how far from the draw of a drawbridge must you stop?

100 feet

50 feet

30 feet

5 feet

5 / 40

A driver that hauls hazardous materials must attend training every:

1 year

2 years

None of these answers are correct

3 years

6 / 40

If you are drowsy, you should _____ before you drive.

get sleep

take a cold shower

do a little exercise

drink coffee

7 / 40

Which seats must have a seat belt:

All of these answers are correct.

The driver's seat.

Senior citizen seats.

Women and children seats.

8 / 40

To decide which placards you need, if any, what three things do you need to know?

Materials hazard class, amount being shipped, and amount of all hazardous materials of all classes on your vehicle.

Materials hazard class, location being shipped, and amount of all hazardous materials on your vehicle.

Materials hazard class, percentage of total volume, and amount of all hazardous materials on your vehicle.

Packing group numbers, amount being shipped, and amount of all hazardous materials of all classes on your vehicle.

9 / 40

What does it mean when the safety valve releases air?

all of these answers are correct

pressure has passed 150 psi

you need it to have it checked out by a mechanic because something is wrong

there is too much air in the air compressor

10 / 40

A battery box check is important. The battery must be secure, connection must be tight, and cell caps must be present. In addition these items should be checked:

The fluid level inside the battery.

Battery connection should show signs of excessive wear.

Battery connections should not show signs of excessive corrosion, and the battery box and cover or door should not be damaged and should be secure.

Battery connections should not show signs of excessive corrosion, but the battery box and cover or door is unimportant.

11 / 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

12 / 40

Select the true statement in regards to stopping distance and speed:

You require 4 times as much stopping distance when driving at 40 mph compared to 20 mph.

A wet road will double the stopping distance at any speed.

All answers listed.

Larger / heavier vehicles generally take longer to stop.

13 / 40

If there is not a sight glass to check the oil level you are required to look for leaks around the _____.

brake pads

axle seals/hub oil

transmission

wheel rims

14 / 40

When this item is missing or loose, movement may occur between the fifth wheel assembly and the frame.

Lug nuts

Locking pins

Tandem release arm

Locking jaw

15 / 40

Select the true statement about slack adjusters:

they can be adjusted automatically or manually

they do not ever need to be adjusted

they should only be adjusted by a mechanic that is certified in slack adjusters

they should move a minimum of 2 inches from the push rod attachment

16 / 40

Students exit the bus and walk:

Across the street.

At least 8 feet away from the side of the bus.

At least 10 feet away from the side of the bus.

The distance it takes to clear the danger zone.

17 / 40

Which two special conditions indicate that you should downshift?

starting up a hill and finishing a curve

starting down a hill and entering a curve

starting up a hill and entering a curve

starting down a hill and finishing a curve

18 / 40

Which of the following is a necessary qualification for non-bulk packaging?

A maximum capacity of 450 l or less if it is used as a receptacle for liquids.

All of these answers are necessary qualifications.

Maximum net mass of 400 kg, or less than 450 l if used as a receptacle for a solid.

Maximum water capacity of 454 kg or less if used as a receptacle for gases.

19 / 40

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

The brake pushrod

The air lines

The bounce absorbers

The brake chambers

20 / 40

Puddles or dripping fluids from the underside of the transmission and engine may indicate:

All of these answers are correct

Problems with the water pump

A leak from the engine

A leaking line or hose

21 / 40

Your bus is disabled. With riders aboard, the bus may be towed or pushed to a safe place only:

If getting off the bus would be more risky for the riders.

By a 27,000 lbs gvwr or larger tow truck.

By another bus with its four-way flashers on.

If the distance is less than 500 yards.

22 / 40

Do not tow or push a disabled bus with riders aboard the vehicle, unless:

Your employer tells you to.

Bus is on a drawbridge.

Getting off the bus would be unsafe.

You are also a class a tow truck driver.

23 / 40

What do yo need to do before supplying air to the air tanks of the second trailer?

open the shut off valves at the back of the first and second trailer

close the shut off valves at the back of the second trailer and open the shut off valves at the back of the first trailer

open the shut off valves at the back of the second trailer and close the shut off valves at the back of the first trailer

close the shut off valves at the back of the first and second trailer

24 / 40

The minimum tire tread depth for front tires is:

4/32-inch

1/32-inch

1/2-inch

3/8-inch

25 / 40

In what position should the converter dolly air tank drain valves and pintle hook be in?

open and open

closed and open

open and latched

closed and latched

26 / 40

What gauge on the dashboard indicates electrical system charging rate?

The coolant pressure gauge

The air gauge

The power gauge

The ammeter/voltmeter

27 / 40

When would you lock some emergency roof hatches in a partly open position?

First day of spring

For fresh air

Whenever you enter a tunnel

Never

28 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

because other drivers do it

to make sure the vehicle will make your destination

safety for yourself and other road users

to make sure nothing has been stolen from the vehicle

29 / 40

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

all trucks have air brakes

you cannot receive a CDL at all otherwise

you would have to get a CDL with a restriction otherwise

it is a federal requirement

30 / 40

Do empty trucks have the best braking?

yes, but only if the truck is newer than 1998

yes, but only on wet surfaces

yes

31 / 40

What should you check for when inspecting a converter dolly?

that the converter dolly air tank drain valve is in the closed position

that the safety chains are secured to the trailer

that the spare tire is secured if there is one

all answers listed

32 / 40

How do you supply air to the trailer tanks?

by connecting the red and blue lines

by pulling out the trailer air supply valve

by pushing in the trailer air supply valve

by connecting the service line glad hand

33 / 40

Buses may NOT have recapped or regrooved tires:

On the outside rear wheels.

Anywhere except on the front wheels.

On front wheels.

When it's been raining.

34 / 40

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

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

have a drink to calm your nerves

stay in your vehicle and do nothing until help arrives

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

35 / 40

You should check the_____when loading small tanks equipped with bulkheads.

expansion rate

distribution of the weight

fuel to air ratio

percentage of water

36 / 40

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

Yes

Any type of floor liner is sufficient

Never use a floor liner for any explosive class

37 / 40

A truck with baffles will handle:

The same as a tanker with no baffles.

With less front to back surge compared to trailers without baffles.

None of the answers listed.

Heavier that it actually is.

38 / 40

The manual says you should look _____ ahead while driving.

12 to 15 seconds, at highway speeds, about a quarter of a mile

9 to 12 seconds, at highway speeds, about a quarter of a mile

15 to 20 seconds, at highway speeds, about a half of a mile

5 to 8 seconds, at highway speeds, about an eighth of a mile

39 / 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

when the vehicle is runaway

yes

40 / 40

If your bus is equipped with an emergency exit door, it must:

Always have a red door light turned on.

All of these answers are correct.

Be secured when the bus is being driven.

Not have any signs, stickers, or markings near it.

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