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

total weight of the vehicle and cargo

weather

length and steepness of grade

time of day

2 / 40

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

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.

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 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.

3 / 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

4 / 40

Select the true statement in regards to when a bulk tank vehicle stops at an intersection on a slippery surface:

The movement of the liquid may push the truck into the intersection.

The liquid may leak out of the tank.

The trailer may slide into the oncoming traffic.

The trailer may slide to the side due to the rocking motion.

5 / 40

When fueling a placarded vehicle, someone must always be:

At the emergency power shut off for the pump.

At the nozzle, controlling the fuel flow.

Within 10 feet of the pump with a fire extinguisher.

Be at the rear most corner on the vehicle.

6 / 40

What handling effect should you expect when your tank has baffles?

The surge will be slower than a tank without baffles.

There is no difference in handling when you have baffles.

There will not be as much front to back surge compared to a tank without baffles.

There will not be as much side to side surge compared to a tank without baffles.

7 / 40

While driving on a clear night with low beam headlights, you should be able to stop within:

2 lengths of your vehicle.

The distance you can see ahead of you.

The distance you will travel in the next 20 seconds.

Half of a football field.

8 / 40

What is incorrect concerning disruptive passengers?

Don't discharge such riders where it would be unsafe for them.

You must remove the disruptive passenger immediately for the safety of the others.

It may be safer to wait and discharge the disruptive passenger at the next scheduled stop or a well-lighted area where there are other people.

You must ensure the disurptive rider's safety as well as that of others.

9 / 40

Water is drained from the compressed air tanks because:

the water could freeze in cold weather and cause braking failure

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

the water will over cool the compressor

to keep the oil in the air compressor clean

10 / 40

Bus drivers must have a CDL if they drive a vehicle:

Designed to seat more than 16 or more persons, including the driver.

That has air brakes.

That is designed to carry more than nine passengers.

That has a gross weight rating of more than 26,000 pounds.

11 / 40

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

They are loose.

They are fitted just right.

There is a leak somewhere.

They need to be changed out.

12 / 40

While completing the 2nd component of the air brake check you are required to turn the electrical power on, begin fanning off the air pressure by rapidly relasing and apply the foot brake and _____.

a low air warning device should sound before the air pressure drops below 40 psi

a low air warning device should sound before the air pressure drops below 60 psi

none of the answers listed

the tractor protection valve and parking brake valve should pop out before air pressure falls below 60 psi for combination vehicles

13 / 40

Which of the following statements about bus evacuation is true?

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

If time allows, notify the police.

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

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

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?

Leave it on the entire time.

Turn it off before unhooking.

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

Turn if off after unhooking.

15 / 40

Which of the following hazard classes utilizes a transport index in order to determine how much of it can be loaded on a single vehicle for transport?

Class 1—explosives

Class 7—radioactive materials

Class 3—flammable liquids

Class 4—live chickens

16 / 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.

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

Call school administrator or the police to remove the student.

17 / 40

A disruptive passenger:

Should not be discharged where it would be unsafe for them.

Is not your responsibility.

May be thrown off the bus.

Should not be allowed on the bus.

18 / 40

A commercial motor vehicle (CMV) is defined as:

all of these answers are correct

a vehicle transporting hazardous materials

a vehicle with a gross weight over 26,001 lbs

a vehicle transporting 16 or more passengers

19 / 40

What does the air compressor governor control?

when the air is taken out of the hoses

when air pressure is applied to the brakes

when air is pumped into the air tanks

when the valve system releases pressure

20 / 40

Which of the following types of emergency equipment must you have on your bus?

Hydraulic jack, fire extinguisher, and signal flares.

Fire extinguisher, spare electric fuses, and reflectors.

Spare electric fuses, fire extinguisher, and accident reporting kit.

Reflectors, fire extinguisher, and accident reporting kit.

21 / 40

You should___when driving down a long steep hill.

begin braking once the vehicle is 10 mph above safe speed

repeatedly pump the brake pedal

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

use the engine brakes only

22 / 40

Select the true statement about stop valves in a cargo tank:

They are manually operated.

They will fall off in an emergency.

They protect the piping and tank during rear end collisions.

They will close in an emergency.

23 / 40

How do you test your service brakes?

apply pressure to the brake pedal when moving at highway speeds

pull over and activate the parking brake

release the air pressure and activate the parking brake

after releasing the parking brake, move forward slowly and apply pressure to the brake pedal

24 / 40

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

The correct answer is not listed.

Both of these conditions must be met.

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

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).

25 / 40

When transporting both hazardous and non hazardous materials, your bills must:

Describe the hazardous materials first.

Any one of the above.

Have the hazardous materials highlighted.

Identify the materials by the letter x or rq in the hm column.

26 / 40

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

Flares or fuses

Signal fires

Reflective triangles

All of these answers are correct

27 / 40

Which of the following statements is true about speed management?

Speed limits for buses are the same as cars.

All of these answers are correct.

You should be able to stop within the distance that you can see ahead.

The posted speed limit is safe for all conditions.

28 / 40

What does the drain valve for air tanks remove?

water and air

oil and water

oil and dirt

air and oil

29 / 40

When should you avoid using the parking brake?

when the brakes are hot

while on an incline

when the air pressure is low

whenever you park

30 / 40

How should the pintle hook be when backing a dolly under the second trailer?

in the unlatched position

in the latched position

in a halfway open position

removed from the dolly

31 / 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?

Poison 23 and flammable gas 21.

None, you cannot load these materials together.

Just dangerous placards are required.

Poison 23 and dangerous.

32 / 40

The most dangerous time during the school bus ride is:

On long bus journeys.

When the students become unruly on the bus.

Crossing railway crossing.

When loading and unloading students.

33 / 40

How many different hazard classes are there?

34 / 40

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

Materials hazard class, location being shipped, 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.

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

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

35 / 40

Tires should should be replaced:

when the tread separates

if the tread depth on your front tires is less than 4/32 deep

all of these answers are correct

when there are broken valve stems

36 / 40

Select the best description of a baffle tank:

It is one large tank.

None of the answers listed.

They are tanks divided down into multiple smaller tanks.

They are divided and have holes for liquid to flow through controlling surge.

37 / 40

Select the statement that describes smooth bore tanks:

They are divided down into smaller tanks.

They are 1 large tank.

None of the answers listed.

They are divided with holes from liquid to flow through controlling surge.

38 / 40

Select the true statement about baffled tankers:

None of the answers listed.

It has hollow balls in it to slow the motion of the liquid in the trailer.

It has walls with holes inside for liquid to flow through.

It has separate tanks.

39 / 40

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

Never use a floor liner for any explosive class

Any type of floor liner is sufficient

Yes

40 / 40

Off-tracking happens when going around a corner and:

the rear wheels follow a different pathway than that of the front wheels

the rear wheels follow the front wheels in a straight path

the front part of the trailer pulls to the right

the rear part of the trailer goes into the shoulder

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