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

Your rig should be parked on__to uncouple double trailers.

a downgrade

grass

the company's lot

level ground

2 / 40

Which of the following types of cargo must never be carried on a bus with passengers?

Small arms ammunition (orm-d)

Emergency drug shipments

Tear gas

Emergency hospital supplies

3 / 40

Select the true statement in regards to as why you should make sure the fifth wheel plate is greased as recommended:

To prevent any steering problems.

To decease heat and noise.

To make sure the electrical connections are good.

To make sure that uncoupling easier.

4 / 40

Select what you should do before leaving the vehicle unattended:

apply the parking brakes

remove the keys from the ignition

all of these answers are correct

chock the wheels

5 / 40

Select the part that is not a part of the drum brake:

safety valve

brake drum

axle

slack adjuster

6 / 40

What is the movement of the liquid called when the tanks are partially filled?

Crashing

Knocking

Framing

Surging

7 / 40

Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?

Classes 1, 21, and 3

Classes 1, 3, and 4

Classes 1, 4, and 51

Classes 1, 3, and 6

8 / 40

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

make sure the trailer won't roll when coupling

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

go ahead and couple it

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

9 / 40

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

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

use stab or controlled braking

use just the trailer brakes

use the engine brake

10 / 40

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

protect the area

care for the injured

gather the contact information of all the drivers involved

notify authorities

11 / 40

If you are stopped on an incline, how can you start moving without rolling back?

apply the parking brake

shift to neutral

aggressively pump the accelerator

fully engage the clutch

12 / 40

The two other places where the hazardous identification number must appear are:

On the back of the truck and inside the glove compartment.

On a temporary license plate holder and the steering wheel.

On the gas tank and a sticker in the glove compartment.

Any bulk packaging and the cargo tanks.

13 / 40

What is the reason that placards are used?

to prevent terrorism

so hazmat is not mixed with food

it is the law

communicate the risk

14 / 40

What keeps air in the tanks should the air compressor develop a leak?

the air compressor

the one-way check vavle

the engine protection valve

the tractor relay valve

15 / 40

Select the statement that is true in regards to managing space to the sides.

all answers listed

high gust winds do not cause any issues for triples and doubles

you should try to avoid driving next to others when possible

you should always keep your vehicle to the right side of the lane

16 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

The driver must restart the pre-trip from the beginning.

None of the answers listed.

A deduction of 15 points.

An automatic failure of the vehicle inspection test.

17 / 40

Double and triple trailers should be driven with care to avoid a rollover or jacknife.

true

only in ideal conditions

only on downgrades

false

18 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

1 to 1 1/2 inches

it depends on how heavy the load is

1/2 to 1 inch

none

19 / 40

What color and shape is the trailer air supply control?

it is a square knob that is red

it is a triangle-shaped knob that is red

it is an 8-sided knob that is red

it is a square knob that is yellow

20 / 40

The _____of the kingpin has the locking jaw close around it.

shank

dull section

tip

apex

21 / 40

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

Spacers

Frame

Fifth wheel

Lug bolts

22 / 40

The most important hand signal you should agree on with a helper is:

“stop”

“turn up the music”

“go”

“faster”

23 / 40

If you are driving a 100-foot truck with double trailers at 30 mph in dry conditions, how many seconds of space should there be between your truck and other vehicles?

24 / 40

Bus drivers must have a commercial driver license if they drive a vehicle designed to seat more than:

10 or more persons, including the driver.

16 or more persons, including the driver.

20 or more persons, excluding the driver.

15 or more persons, including the driver.

25 / 40

The shipping papers for hazardous materials can be found:

Any of the above locations.

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

In clear view, within reach while driving.

In a pouch on the driver's door.

26 / 40

Select the true statement about tractor protection valve:

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

it is closed by the parking brakes

it provides the air supply to the brake system

all of these answers are correct

27 / 40

In column 1, the "D" symbol means:

Domestic restrictions

Detonators

Devices

Domestic transportation

28 / 40

Select the true statement about dual air brake systems.

there is a primary system and a secondary system

there is a single set of brake controls

one system controls the front axle and the other controls the rear axle

all of these answers are correct

29 / 40

It is good practice to_____when uncoupling.

make sure the electrical cable is hanging with the plug end down

all answers are appropriate

have the glad hands coupled to the dummy couplers

have the glad hands coupled together

30 / 40

Of the following hazardous material classes, which is the most dangerous?

Division 63

Division 61

Division 62

Division 64

31 / 40

Buses may carry small-arms ammunition labeled ORM-D, emergency hospital supplies, and drugs. However, buses must never carry:

More than 500 pounds total of allowed hazardous materials, and no more than 100 pounds of any one class.

More than 750 pounds total of allowed hazardous materials, and no more than 100 pounds of any one class.

More than 1000 pounds total of allowed hazardous materials, and no more than 200 pounds of any one class.

More than 250 pounds total of all allowed hazardous materials.

32 / 40

The trailer height is correct for connecting a converter dolly to a second or third trailer when:

the trailer will rise slightly when the converter dolly is backed underneath it

the center of the kingpin is past the locking jaw

all answers listed

the kingpin is over the fifth wheel

33 / 40

Which of the following is not a prohibited practice on the bus:

Fueling your bus with riders on board if about to run out of fuel.

Talking with riders while driving.

Towing a disabled bus with riders aboard when getting off would be a safe option.

Refueling in a closed building with riders on board.

34 / 40

____is the most common type of foundation brakes used by heavy vehicles.

Wedge drum

Rectangle brakes

None of the answers listed

S-Cam drum

35 / 40

This gauge has a governor cut-off.

Air gauge

Oil pressure gauge

The coolant temperature gauge

The ammeter gauge

36 / 40

The emergency air line is _____and the service air line is____.

red, green

yellow, white

white, blue

red, blue

37 / 40

Air tanks need to be drained:

to prevent water and oil from building up in the tank

to keep the tanks warm when not in use

air tanks should absolutely never be drained

to keep the tanks cold when not in use

38 / 40

Which of the following statements about stopping distances is NOT true?

trucks traveling at higher speeds require greater stopping distances

brakes, tires, springs and shocks are designed to work best when the truck is empty

empty trucks require greater stopping distances because they have less traction

trucks traveling on ice or snow require greater stopping distances

39 / 40

Which of the following statements about bus evacuation is true?

If time allows, notify the police.

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

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

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

40 / 40

The purpose for the emergency air line is:

to supply air to the trailer air tanks and, on combination vehicles, controls the emergency brakes

supply air to the trailer air tanks and on combination vehicles, controls the service brakes

none of the answers listed

supply air to the tractor air tanks and on combination vehicles controls the emergency brakes

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

CDL Category Practice Tests

CDL Practice Test

How To Get A ohio Commercial Drivers License

Hit the Open Road

ohio CDL License Test Tips

Additional Information

Information on the Ohio Bureau of Motor Vehicles

Additional Ohio CDL Helpful Links

ohio
CDL Practice Test