ohio
CDL Practice Test

Use this site as you prepare to take the Ohio CDL test. You can work through these practice test questions as you prepare for the Ohio CDL Test. The questions on these practice tests will gauge your knowledge on the various areas that apply to obtain a CDL in Ohio. This site is completely free and you are welcome to take the practice tests as many times as you would like. 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 must be alert for road hazards so that:

You will have time to plan your escape if the hazard becomes an emergency.

Accident reports will be accurate.

Law enforcement personnel can be called.

You can help impaired drivers.

2 / 40

How should you know when to shift?

every 3 to 5 seconds or engine speed

engine speed and road speed

road speed and wind speed

engine speed and the shift indicator light

3 / 40

Which trailer is most likely to tip over due to the crack the whip effect?

the last trailer of a triple

the first trailer of a triples

the heaviest trailer

the last trailer of a double

4 / 40

With most hazardous materials, you may park within 5 feet of the road briefly, if your work requires it. The materials that are the exception and do not allow parking this close to the road are:

Acids and poisons

Explosives A and B

Corrosives and oxidizers

Liquids

5 / 40

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

Impossible to tell without more information

Yes

Only if the arm is down telling vehicles to stop

6 / 40

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

when the tractor spins around

when the tractor brakes lock up

when the trailer slides to the right into the shoulder

when the trailer pushes the towed vehicle sideways

7 / 40

Your bus starts to lean toward the outside on a banked curve, you are:

Driving on a wet surface.

Driving too fast.

Driving in the mountains.

Driving with bad tires.

8 / 40

Check to ensure that____when inspecting the coupling.

the landing gear handle is free to hang down

the electrical cable is unplugged

there is minimal slack in the air lines

there is no slack at all in the air lines

9 / 40

This object should be checked to make sure that the cap(s) are on tight, that it is secure, and there are no leaks.

Exhaust system

Fuel tank

Air coolant system

Windshield fluid line

10 / 40

You should decrease to a safe speed before entering a curve and then_____through it.

pump the brakes

shift down 2 gears

accelerate

ride the brakes

11 / 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 3—flammable liquids

Class 1—explosives

Class 7—radioactive materials

Class 4—live chickens

12 / 40

You should_____when checking the slack adjusters on S-Cam brakes.

pull on the slack adjuster while the parking brakes are on

pull on the slack adjusters after draining the air from the system

make sure there is an inch of leeway in each direction for the slack adjuster

pull hard on each slack adjuster while wearing gloves

13 / 40

After deciding the type of evacuation that is necessary, the next step you must take is:

Opening the emergency exits.

Notifying the dispatch office of the evacuation.

Dangle the radio microphone out of the driver window for later use.

Securing the bus.

14 / 40

How do you supply air to the trailer tanks?

by connecting the service line glad hand

by connecting the red and blue lines

by pulling out the trailer air supply valve

by pushing in the trailer air supply valve

15 / 40

The safety valve is usually set to open at:

75 psi

150 psi

225 psi

125 psi

16 / 40

Select the inappropriate way to test for the low pressure warning signal.

ask for a pedestrian to listen for the signal

decreased the air pressure by stepping on and off the brake pedal

have the electrical power on

turn off the engine

17 / 40

The shipping papers for hazardous materials can be found:

In clear view, within reach while driving.

In a pouch on the driver's door.

Any of the above locations.

On the driver's seat when out of the vehicle.

18 / 40

What are the 3 methods for securing a second trailer before coupling?

all answers listed

parking against another trailer, locking the trailer door, and chocking the tires

chocking the tires, parking on level ground, and charging the air tank

parking on level ground, chocking the tires, and charging the trailer air tank if it doesn't have spring brakes

19 / 40

Overhead inside mirror is used to:

See the blind spot immediately behind the bus.

See all of the students.

See the area where students exit the bus.

Monitor traffic that approaches and enters the blind spot area.

20 / 40

In the slide mechanism of the sliding fifth wheel, this object should have no missing pins or be loose when fully engaged.

Rock jaw

Kingpin

Locking pins

Pintle hook

21 / 40

When driving with multiple trailers, which one should be right behind the tractor?

the trailer with the heaviest load

the trailer with the smallest road

the trailer longest in length

the trailers shortest in length

22 / 40

Select the factor that is known to cause brakes to fail or fade. (more than one answer may be correct, but select only one)

excessive heat from extensive use

brakes that are not aligned properly

when using the engine brake more than the brakes

tire retread that is mismatched

23 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

Oil pressure gauge

Coolant pressure gauge

Voltmeter gauge

Air pressure gauge

24 / 40

What are the liquid tight separations between compartments inside tanks called?

Layers

Bulkheads

None of the answers listed

Waffles

25 / 40

Spring brakes are usually held back by_____during normal driving.

heat

air pressure

clamps

pressure of the spring

26 / 40

You should line up_____when getting ready to back under the trailer.

directly in front of the trailer

for the kingpin to activate on the driver's side first

about 12 degrees to the left of the trailer

above 12 degrees to the right of the trailer

27 / 40

The driver's manual advises you to disconnect the steering axle brake to keep the rig straight:

in ideal conditions

never

whever you feel like it

when it is raining

28 / 40

What are you checking when looking at the lubrication level on a dipstick?

The oil level

The windshield wiper fluid level

The power steering fluid level

The horn fluid level

29 / 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.

The posted speed limit is safe for all conditions.

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

30 / 40

Select the true statement about tractor protection valve:

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

it provides the air supply to the brake system

it is closed by the parking brakes

all of these answers are correct

31 / 40

Select the true statement about handling triples and doubles:

because of the crack the whip effect, the rear trailer of a 100-foot triple is less likely to tip over

triples and doubles handle the same as singles

a tip over of the rear trailer can occur due to sudden movements of the steering wheel

due to off-tracking, a triple bottom rig can come to a stop faster than a 5-axle tractor

32 / 40

A commercial motor vehicle (CMV) is defined as:

a vehicle transporting 16 or more passengers

a vehicle transporting hazardous materials

a vehicle with a gross weight over 26,001 lbs

all of these answers are correct

33 / 40

A truck with baffles will handle:

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

None of the answers listed.

The same as a tanker with no baffles.

Heavier that it actually is.

34 / 40

When inspecting your bus, you must make sure that:

All of these answers are correct.

Emergency exit handles are secure.

Rider signaling devices are working.

Every handhold and railing is secure.

35 / 40

What color and shape is the trailer air supply control?

it is a square knob that is yellow

it is a triangle-shaped knob that is red

it is a square knob that is red

it is an 8-sided knob that is red

36 / 40

What type fire extinguisher is required in the power unit of a placarded vehicle?

A ul rating of 10 b/c or above.

A ul rating of 5 b/c or above.

Any of these are acceptable.

A ul rating of 15 abc.

37 / 40

Which of the following is NOT a basic step to be taken at a crash scene?

protect the area

notify authorities

gather the contact information of all the drivers involved

care for the injured

38 / 40

Cargo tanks are:

Bulk packaging temporarily attached to your vehicle.

Filled while they are off your vehicle, then attached for transportation.

Only made in one size.

Bulk packaging permanently attached to your vehicle.

39 / 40

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

six

four

two

one

40 / 40

What does outage mean?

It is how quickly the tanks drain.

It is the weight of the liquid.

It is the movement of the liquid.

It is the allowance needed for the expansion of liquid.

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

CDL Practice Test

How To Get A ohio Commercial Drivers License

To be eligible for a CDL in Ohio, applicants must meet the following age eligibility requirements.

Be at least 18 years old to operate a commercial vehicle intrastate (within Ohio only).
Be at least 21 years old to operate a commercial vehicle interstate (outside of Ohio).

Ohio CDL applicants must be medically certified that they are medically capable of operating a commercial vehicle and pass a vision test. Ohio applicants must get assistance with completing the forms from a CDL-certified doctor.

Applicants are required to submit the following documents.

Medical Examiner’s Certificate
(Form 649-F) Medical Examination Report for Commercial Driver Fitness Determination

Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in Ohio. Applicants can be disqualified for having multiple licenses.

Ohio 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

ohio CDL License Test Tips

All Ohio CDL applicants must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the Ohio test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The Ohio 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 active 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 honorably discharged from the military within the past 12 months.
Submit an Application for CDL Skills Test Waiver.

Additional Information

Information on the Ohio Bureau of Motor Vehicles

The Ohio Department of Public Safety Bureau of Motor Vehicles oversees CDL license requirements in Ohio. To get more information contact them via:

Website: https://www.bmv.ohio.gov/dl-cdl-testing.aspx

Phone: 844.644.6268

Additional Ohio CDL Helpful Links

Please use the links below to access more valuable Ohio CDL testing resources and to learn more about practice driving tests for the state of Ohio.

ohio CDL Practice Test