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

You should be in the proper gear before going down a hill because:

it helps control your speed better

brakes may fail or fade from excessive heat due to relying on them too much and not using the engine brake effect

it builds up the air pressure in the air tanks

water may build up in the air tanks if you do not rely on the engine brake

2 / 40

On the Hazardous Materials Table, column 1 shows:

How much of the material can be put in a vehicle without placarding.

To what shipping mode the information on that line applies.

What materials can be loaded together.

How to ship an item.

3 / 40

How do you supply air to the trailer tanks?

by connecting the red and blue lines

by connecting the service line glad hand

by pulling out the trailer air supply valve

by pushing in the trailer air supply valve

4 / 40

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

you might damage your leaf springs

someone might try to pass you on your right

all of these answers are correct

someone might try to pass you on your left

5 / 40

For any flatbed load you must have at least ____ tie downs.

one

two

six

four

6 / 40

Why does it take special skills to haul a tank vehicle?

The weight of the load is high up off the road.

All of the answers listed.

There is a high center of gravity.

It is top heavy.

7 / 40

How high should you crank the landing gear?

as high up as it will go

until the crank handle is loose

for it to be 6 inches above the ground

so that you can clear railroad tracks

8 / 40

This item should not be rusted, bent, or damaged and centered over evenly spaced tires and dual wheels.

Lug bolts

Frame

Fifth wheel

Spacers

9 / 40

What does it mean when the safety valve releases air?

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

all of these answers are correct

there is too much air in the air compressor

pressure has passed 150 psi

10 / 40

If hazardous material is spilling from your vehicle, do not move your vehicle:

Any more than safety required.

In an upwind direction.

Any more than 500 feet.

Any more that 450 feet.

11 / 40

Take extra caution when driving smooth bore tanks during:

Driving into the wind.

All answers listed.

Stops and starts.

Drive down or up an incline.

12 / 40

This component should be checked that it is solid, securely bolted to the tracture frame, and clear of objects.

The platform

The fifth wheel

The catwalk

The locking kingpin

13 / 40

What is the best way to stop all skids?

quickly turn the steering wheel side to side

accelerate and countersteer

use controlled or stab braking

restore traction back to the tires

14 / 40

Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses after finishing that delivery?

Turn it off before unhooking.

Turn if off after unhooking.

Leave it on the entire time.

Turn it off on arrival—use other power to run the pump.

15 / 40

Play of the steering wheel should not exceed:

15 degrees

10 degrees

5 degrees

30 degrees

16 / 40

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

pull off the road and park in an open area

open the door and jump out of the vehicle

open the hood and let the flames die down

find a service station to pull into

17 / 40

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

about 12-15 seconds

about 1 block for city driving

about 5 car lengths on the highway

about 1/4 mile for open highway driving

18 / 40

For emergency braking when driving a double trailer and having to use your brakes to avoid a collision is to:

use just the trailer brakes

apply a firm pressure to the brake pedal and don’t let off

use the engine brake

use stab or controlled braking

19 / 40

What is a king pin?

it is a pin that holds the wheel on to the axles

it is a pin that a driver receives for being a safe driver

it is a pin that locks the air brake lines together

it is a pin that locks the trailer to the tractor on the fifth wheel

20 / 40

To transport cargo safely, which of these are you NOT responsible for?

recognizing possible overloads

inspecting the cargo

making sure that cargo is properly secured

ensuring the freshness of sealed cargo

21 / 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

22 / 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?

None, you cannot load these materials together.

Just dangerous placards are required.

Poison 23 and dangerous.

Poison 23 and flammable gas 21.

23 / 40

A minimum tread depth of 2/32 inch is required for:

Donut tires.

Parking axle tires.

Non-steer axle tires.

Driving axle tires.

24 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

time of day

total weight of the vehicle and cargo

weather

length and steepness of grade

25 / 40

Why should you not use the trailer hand brake to straighten out a jack knifing trailer?

this is the only situation in which you should use the hand brake

the tractor wheels caused the skid in the first place once the trailer wheels grip the road again, the trailer will start to push the tractor and straighten out

none of the answers listed

the trailer wheels caused the skid in the first place once the trailer wheels grip the road again, the trailer will start to follow the tractor and straighten out

26 / 40

There must not be more than_____for engine compartment belts.

1/4 inch of play at the ends of the belt

3/4 inch of play at the center of the belt

1/2 inch of play at the center of the belt

1/2 inch of play at the end of the belts

27 / 40

If a rider wants to bring a car battery or a can of gasoline or kerosene aboard your bus, you should:

Have the rider pay a second fare.

Not allow the rider to do it.

Instruct the rider to sit next to an open window.

Put the materials in the bus's "safe box".

28 / 40

You should check your mirrors while making a lane change:

after you have completed the lane change

after you signal your intent to change lanes

all answers listed

right after you start the lane change

29 / 40

If you do become sleepy while driving, you should _____.

drink caffeinated beverages

roll down the windows

turn up the radio

stop to sleep

30 / 40

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

The locking pins/tandem release arm

Electrical/air connections

The landing gear

The frame

31 / 40

Students exit the bus and walk:

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

The distance it takes to clear the danger zone.

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

Across the street.

32 / 40

What product is typically carried in a liquid tank trailer without baffles?

Fertilizer.

Hydrogen peroxide.

Food or milk products.

Fuel.

33 / 40

Select the action that is not recommended when driving on slippery roads:

use a light pressure with the the brake and accelerator pedals

keep other drivers out of your side space

none of the answers listed

use a speed retarder or engine brake

34 / 40

To test the security of the tractor semi trailer connection you should:

look at it carefully after pulling forward gently in a low gear against the locked trailer brakes

put the tractor in a high gear and quickly pull ahead

with the trailer brakes locked, rock the trailer back and forth

you don't need to check it

35 / 40

Which seats not securely fastened to the bus are usually allowed?

Any of the last row seats.

The driver's seat only.

None of these answers are correct.

Window seats.

36 / 40

____is what can legally hold the parking brake or emergency brake in position for a bus, truck, or truck tractor.

Brake pressure

Spring pressure

Air pressure

All of these answers are correct

37 / 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

38 / 40

Which of the following statements is FALSE?

if a tire blows, you should put the brakes on hard to stop quickly

stopping is not always the safest thing to do in an emergency

you can almost always turn to miss an obstacle more quickly than you can stop

anti-lock braking systems (ABS) only activate when wheels are about to lock

39 / 40

You should_____to make an emergency stop with air brakes when using the stab braking method.

rapidly and lightly pump the brake pedal

apply pressure to the brake pedal until the wheels lock and then stay off of the pedal for as long as the wheels are locked

apply a full hand valve until you stop and press firmly on the brake pedal

apply a firm pressure to the brakes, release the brake pedal once the wheels lock and then apply pressure to the brakes onces the wheels start rolling again

40 / 40

Select the two things that are important in preventing a rollover:

drive slowly around turns and keep the cargo as close to the ground as possible

maintaining properly inflated tires and an even load on the trailer

the length and weight of the vehicle

drive slowly around turns and keep the center of gravity of the cargo as high as possible

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