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

Remember to_____when steering to avoid a crash while driving doubles.

keep your foot off the brake while turning

have both hands on the steering wheel

all answers listed

be prepared to counter-steer

2 / 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 is designed to carry more than nine passengers.

That has air brakes.

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

3 / 40

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

4 seconds

7 seconds

6 seconds

3 seconds

4 / 40

Do empty trucks have the best braking?

yes, but only on wet surfaces

yes, but only if the truck is newer than 1998

yes

5 / 40

What will occur if you cross the connect the air lines?

the tractor brakes will lock up

there will not be air going to the trailer brakes

the tractor will not be able to move

nothing will occur, it'll funciton as normal

6 / 40

Which of the following statements about overhead space is true?

the heights posted at bridges are usually accurate

the weight of the cargo changes a truck's height

an empty van is lower than a loaded one

warning lights are always installed on low bridges and overpasses

7 / 40

Two causes of tire fires are ______.

hot brakes and under-inflated tires

under-inflated tires and duals that touch

under-inflated tires and poor retreads

duals that touch and road debris

8 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

nothing will occur

the rig will slide sideways but stay in a straight line

there will be a trailer jackknife

no matter how you turn the steering wheel, the rig will continue in a straight line

9 / 40

Drivers who transport route controlled radioactive materials must carry a dated certificate of radioactive materials training. This training must have ocurred within the last:

3 years

2 years

4 years

1 years

10 / 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 brake chambers

The bounce absorbers

11 / 40

Select the true statement about slack adjusters:

they can be adjusted automatically or manually

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

they do not ever need to be adjusted

12 / 40

The two main things to look ahead for while driving are _____.

bridges and tunnels

traffic and road conditions

fire and flooding

truck stops and police

13 / 40

Select when you should use the hand valve to park a combination vehicle.

when parking at a loading dock

when parking on a downgrade

never

when parking in a commercial lot

14 / 40

Which of the following is NOT a part of the steering system?

steering knuckle

main spring

tie rod

hydraulic fluid reservoir

15 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

bias

dual

treaded

radial

16 / 40

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

four

one

six

two

17 / 40

This object is not checked at the rear of the trailer.

The bumper

The mud flaps

The back doors

The header board

18 / 40

What is the purpose of a baffle?

It stops side to side surging.

It makes it easier to clean the tanker out.

It allows you to haul loads that are mixed.

It controls the surge of liquid forward and backwards.

19 / 40

A tractor should not be backed under a trailer until the whole air system is:

at a normal pressure

at a level of 50 and 70 psi

at half of its normal pressure

at a level of 70 and 90 psi

20 / 40

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

you should try to avoid driving next to others when possible

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

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

all answers listed

21 / 40

Select the true statement about tractor protection valve:

it is closed by the parking brakes

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

it provides the air supply to the brake system

all of these answers are correct

22 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

all are equally likely

the tractor

the front trailer

the back trailer

23 / 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 rear part of the trailer goes into the shoulder

the front part of the trailer pulls to the right

24 / 40

When stopping for railroad tracks, you must stop no closer than how many feet before the nearest track?

25 / 40

When transporting explosives you may not park:

Within 300 feet of a tunnel.

All of these answers are correct.

Within 5 feet of the traveled part of the road.

Near an open fire.

26 / 40

Which of the following materials would be an acceptable floor liner for moving Division 1.1 or 1.2 materials?

Carbon steel

Non-ferrous metal

Stainless steel

All of these answers are correct

27 / 40

What should the driver pay special attention to when driving smaller tanks?

The high center of gravity.

The distrubition of weight.

The level of the fluid.

All answers listed.

28 / 40

In what position should the converter dolly air tank drain valve be in for double trailer combination?

in a closed position

in a halfway closed position

in an open position

in a 1/3 open position

29 / 40

A commercial motor vehicle (CMV) is defined as:

a vehicle transporting hazardous materials

a vehicle transporting 16 or more passengers

a vehicle with a gross weight over 26,001 lbs

all of these answers are correct

30 / 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.

Fuel tank

Air coolant system

Windshield fluid line

Exhaust system

31 / 40

Commerical vehicles typically have this type of brake.

S-Cam brakes

stab brakes

drum brakes

rectangle brakes

32 / 40

The safety valve is usually set to open at:

225 psi

75 psi

125 psi

150 psi

33 / 40

When you have a major leak in the service line and put on the brake, the service air pressure will escape and cause the:

the tractor spring brakes to activate

the trailer tank pressure to decrease

the trailer emergency brakes to activate

none of the ansers listed

34 / 40

Where are the two main places where the hazardous material identification number appears?

On the shipping papers and on a secret document in the driver's wallet.

On the shipping papers and on the package.

On the package and on paperwork at the shipping point of origin.

On the package and on paperwork at the shipping destination.

35 / 40

Front wheel brakes are good under what kind of conditions?

any weather conditons

ideal weather conditions

icy or wet conditions

they are not ideal

36 / 40

Why should you know the outage?

Heavier liquids don't require outage.

Just in case you become a contestant in a trivia competition.

Baffles are not always permitted with certain types of liquids.

Liquids expand different amounts.

37 / 40

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

trucks traveling at higher speeds require greater stopping distances

trucks traveling on ice or snow require greater stopping distances

empty trucks require greater stopping distances because they have less traction

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

38 / 40

You should_____when an emergency requires you to quickly stop your tanker.

use stab or controlled braking

use the emergency brakes only

keep a firm pressure on the brake pedal

turn off the abs and brace for impact

39 / 40

The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.

above the locking lever

sticking straight up

threaded through the locking lever

below the locking lever

40 / 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 last trailer of a double

the heaviest trailer

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