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

Students exit the bus and walk:

The distance it takes to clear the danger zone.

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

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

Across the street.

2 / 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 60 psi

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

3 / 40

You need to be extra careful when driving smooth bore tanks:

When hauling food or milk products.

When unloading or loading.

All answers listed.

When stopping or starting.

4 / 40

What must vehicles with air brakes have?

a minimum of 2 air tanks

an air pressure gauge that shows how much air is used by the brake chambers for braking

an air pressure gauge that shows the pressure available for braking

all of these answers are correct

5 / 40

Should your air compressor stop working:

there will be no affect to your brakes

the brakes will lock up on you immediately

there will still be air pressure left in the air tanks

you will lose your ability to brake immediately

6 / 40

If your bus has an emergency exit door, it must:

All of these answers are correct.

Not have any signs, stickers, or markings anywhere near it.

Be closed when operating the bus.

Have a red electric door light turned on at all times.

7 / 40

The method for testing hydraulic brakes for leaks is to _____.

pump the brake pedal 3 times and apply firm pressure for 5 seconds the pedal should not move

all of these answers are correct

hold the brake down for 5 seconds and listen for leaks

pump the brake pedal 5 times and apply firm pressure for 3 seconds the pedal should not move

8 / 40

Which of the following is NOT an acceptable type of marking for hazardous materials?

Un marks

Name in italics

Descriptive name in roman print

Identification number

9 / 40

After the initial drop, the maximum leakage rates per minute is:

10 psi for combination vehicle and 5 psi for single vehicle

6 psi for a combination vehicle and 5 psi for single vehicle

4 psi for a combination vehicle and 3 psi for a single vehicle

3 psi for combination vehicle and 1 psi for single vehicle

10 / 40

Select how you would check the truck's slack adjusters.

while wearing gloves, pull hard on each slack adjuster that you can reach

listen for any strange noises while applying pressure to the brake pedal

brake hard after accelerating

all of these answers are correct

11 / 40

This gauge has a governor cut-off.

The coolant temperature gauge

The ammeter gauge

Oil pressure gauge

Air gauge

12 / 40

How do you test the trailer service brakes?

release air to the spring brakes

test the brakes out while driving at 5 mph

apply pressure to the brake pedal

apply the hand control and check to see if you feel the trailer brakes come on

13 / 40

Play of the steering wheel should not exceed:

30 degrees

5 degrees

15 degrees

10 degrees

14 / 40

Select the true statement in regards to brake drums or discs:

they are not allowed to have any cracks

the linings should fit loosely around the brake shoe

they should not have cracks that are longer than half the width of the friction area

they should always be kept well-greased up

15 / 40

You should have the fifth wheel plate greased as recommened because:

it will prevent steering problems

it will ensure a good electrical connection

it will ensure a good air line connection

it will reduce noise and heat

16 / 40

While driving at night, which lights should you use as often as you can?

emergency flashers

novelty lights

high beams

low beams

17 / 40

Before backing under the trailer you should______when coupling a tractor and trailer with air lines already connected.

press down on the brake pedal twice

supply air to the trailer system and then pull the air supply knob out

all answers listed

have the trailer brakes off

18 / 40

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

the trailers shortest in length

the trailer with the smallest road

the trailer with the heaviest load

the trailer longest in length

19 / 40

What gauge on the dashboard indicates electrical system charging rate?

The air gauge

The coolant pressure gauge

The ammeter/voltmeter

The power gauge

20 / 40

The interlock system for the brake and accelerator on a transit coach may be used:

As a safety feature when the exit door is open.

To replace the parking brake.

To replace the rear door emergency buzzer.

All of these answers are correct.

21 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

6 psi a minute

3 psi a minute

2 psi a minute

5 psi a minute

22 / 40

Always try to back toward the driver's side because

all of these answers are correct

you can see better, watching the vehicle rear out the side window

it's more comfortable for turning your neck

your truck will naturally pull toward the driver's side

23 / 40

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

They are fitted just right.

They are loose.

There is a leak somewhere.

They need to be changed out.

24 / 40

The direction of liquid movement not prevented by baffles is:

Bottom to top.

None of the answers listed.

Back to front.

Side to side.

25 / 40

Select the true statement in regards to quick steering movements and double trailers:

nothing will occur

it is easier to countersteer doubles/triples than other vehicles

you should apply a firm pressure to the brake pedal at the same moment you do quick steering movements

it is easier to tip doubles and triples from quick steering movements than other vehicles

26 / 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, 3, and 6

Classes 1, 4, and 51

Classes 1, 21, and 3

Classes 1, 3, and 4

27 / 40

Which of the following is a clue another driver is impaired:

Open window in warm weather.

All of these answers are correct.

Exiting the interstate when there's no gas station visible.

Stopping at a green light, or waiting too long at a stop.

28 / 40

The bus driver must accept responsibility for supervising and controlling students while on the bus route. Who is the person in charge?

Bus driver.

Parents of the students on the bus.

The school district superintendent.

Students on the bus.

29 / 40

Shifting into a lower gear and removing your foot off of the accelerator to slow your vehicle is known as?

double clutching

anti-lock braking

engine braking

brake fade

30 / 40

To prevent a roll over a driver can 1) keep the cargo as low to the ground as possible and 2) _____.

have the fifth wheel's free play as tight as possible

take turns slowly

have the brakes properly adjusted

drive while intoxicated

31 / 40

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

The back doors

The mud flaps

The bumper

The header board

32 / 40

Is this statement true or false: You do not need to use the parking brake if are leaving your vehicle for a short amount of time.

only when the vehicle has over 25,000 miles on it

true

false

only when the vehicle has over 60,000 miles on it

33 / 40

The 3 parts of the air brake system are: service brakes, parking brakes, and ____.

v-cam brakes

foot brakes

disc brakes

bolt brakes

34 / 40

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

true

only on downgrades

false

only in ideal conditions

35 / 40

The crack-the-whip effect is more likely to cause the front trailer to tip over.

there is an equal chance for trailers to tip

false

trailers never tip

true

36 / 40

Which of the following is something the driver must watch for:

Poles and tree limbs at stops.

Gaps your bus needs to accelerate and merge with traffic.

All of these answers are correct.

Appropriate clearance around and over the bus.

37 / 40

If there is no traffic light or attendant, how far from the draw of a drawbridge must you stop?

5 feet

50 feet

100 feet

30 feet

38 / 40

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

Any more than safety required.

Any more that 450 feet.

In an upwind direction.

Any more than 500 feet.

39 / 40

For emergency braking to avoid a crash when driving a double trailer you should:

slam down the brake pedal and keep pressure on it

do stab or controlled braking

none of the answers listed

use the trailer brakes only

40 / 40

Select the true statement about converter dollies:

all answers listed

because of their small size they have little braking power

they typically require a glad hand converter

they usually do not have spring 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