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

In the event of a tire failure you should...

pump the brakes until you come to a stop

stay off the brake and hold the steering wheel firmly

accelerate quickly until you find a place to pull over

disengage the clutch so you are in neutral gear

2 / 40

What is the brake system that applies and releases the brakes when the brake pedal is used?

engine brake system

lock brake system

none of the answers listed

service brake system

3 / 40

The brake pushrod should not move more than____for manual slack adjusters.

an inch when pulled by hand with the brakes released

checking is not required in vehicles built after 1994 as they have automatic slack adjusters

1-2 inches while the brakes are set

movement is not allowed

4 / 40

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

axle

brake drum

slack adjuster

safety valve

5 / 40

Select the true statement in regards to the braking power of spring brakes.

it depends on the adjustment of the service brakes

the braking prower increases when the brakes are hot

braking power can only be tested by licensed mechanics

it will not be affect by the condition of the service brakes

6 / 40

How do you check the air compressor governor "cut in" and "cut out" pressures?

run the engine at a fast idle

monitor the air pressure gauge

decrease the tank pressure by stepping on and off the brake

all of these answers are correct

7 / 40

In safe driving, what does communicating mean?

letting others know you are there by using turn signals, four way flashers, and horn

using hand signals

using a cb radio to let others know your intentions

all of these answers are correct

8 / 40

Cargo tanks ____.

are large drums temporarily attached to a vehicle

are tanks that the military uses to transport hazardous materials

are bulk packagings permanently attached to a vehicle

are large drums used to contain hazmat that is loaded on a trailer

9 / 40

Select the statement that describes how you could damage the landing gear.

have the trailer kingpin centered over the fifth wheel

back under the trailer in a straight path

have the tractor and trailer aligned

back under the trailer at an angle

10 / 40

Select the statement that best explains the "crack-the-whip" effect.

it is when the trailer is half full with the cargo loaded in the front half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when you make a sudden movement of the steering wheel or a quick lane change and the rear trailer tends to swing out. The force of the rear trailer becomes amplified, which will cause it to roll over (rearward amplification).

it is when you make a sudden movement of the steering wheel or a quick lane change and the tractor tends to rock and sway. The velocity of the rearmost trailer forces the tractor to roll over before the trailer.

it is when the trailer is half full with the cargo loaded in the rear half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

11 / 40

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

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

The liquid may leak out of the tank.

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

The trailer may slide into the oncoming traffic.

12 / 40

Before transporting a sealed load, you must check:

all of these answers are correct

a small sample of whatever is inside

that you don't exceed gross weight and axle weight limits

a picture of whatever is inside

13 / 40

What action should you take before driving while drowsy?

open your vehicle windows for some fresh air

pull off the road and get some sleep

drink energy drinks

drink a cup of coffee

14 / 40

This component should be checked that it is solid, securely bolted to the tracture frame, and clear of objects.

The locking kingpin

The platform

The fifth wheel

The catwalk

15 / 40

How do you determine if slack adjusters need to be adjusted?

release the parking brakes and service brakes

pull out the automatic slack adjustment control knob

activiate the parking brake and service brake

release the parking brakes and activate the service brakes

16 / 40

Buses are prohibited from carrying all of the following hazardous materials except:

Properly labeled poison gas canisters.

Small-arms ammunition.

Materials labeled radioactive in the space occupied by people.

Properly secured tear gas canisters.

17 / 40

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

downshift

look for an escape ramp or an escape route

pump the brake pedal

put the gears in neutral

18 / 40

When using turn signals, which of the following should be avoided?

signal when you want to change lanes

signal before you exit

signal just before you start to make a turn

signal when you are merging into traffic

19 / 40

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

about 5 car lengths on the highway

about 12-15 seconds

about 1 block for city driving

about 1/4 mile for open highway driving

20 / 40

How do you secure a second trailer to your combination vehicle?

use emergency air brakes, spring brakes, and wheel chocks together

use wheel chocks only

none of the answers listed

use the emergency air brakes or the trailer's spring brakes only

21 / 40

You should check____when loading the small tanks of a cargo tank with bulkheads.

the fuel to air ratio

none of the answers listed

the expansion rate

the weight distribution

22 / 40

If you are drowsy, you should _____ before you drive.

get sleep

drink coffee

do a little exercise

take a cold shower

23 / 40

Which of the following is a reason that shippers package material?

Because it is the shipper's responsibility to determine whether or not a material is hazardous.

Because it is the shipper's responsibilty to choose the correct packaging for a material classified as "hazardous".

Because it is the shipper's responsibility to correctly label the transport vehicle with precautionary placards.

All of these answers are correct.

24 / 40

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

all answers listed

have the trailer brakes off

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

press down on the brake pedal twice

25 / 40

Which hazard classes must you NEVER smoke, or perform any activity involving fire, within 25 feet of?

Class 4 only

Classes 1, 2, 3, and 4

Class 2 only

Class 1 only

26 / 40

Tankers used to transport hazardous materials on vehicles must be marked with:

The un or na id number of the product.

The date of manufacture.

The chemtrec phone number.

The owner's puco or icc number.

27 / 40

Upon what does the amount of liquid you can carry in a load depend?

All of the answers listed.

The legal weight limits.

The amount of expansion that will occur.

The weight of it.

28 / 40

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

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

Open window in warm weather.

All of these answers are correct.

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

29 / 40

Select the reason as to why air tanks need to be drained:

tanks usually do not need to be drained

to provide greater control of your vehicle

to release water and other contaminents which may cause brakes to fail in freezing weather

to prevent the left sided brake from locking up

30 / 40

Which of the following statements about downshifting is NOT true?

downshift before climbing a hill

downshift before starting down a hill

downshift when you get to the bottom of a hill

downshift before entering a curve

31 / 40

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

all of the answers listed

drive with extra care in mountains and in bad weather

increase your following distance

none of the answers listed

32 / 40

What should you check for when inspecting a converter dolly?

that the safety chains are secured to the trailer

that the converter dolly air tank drain valve is in the closed position

that the spare tire is secured if there is one

all answers listed

33 / 40

Which of the following statements is FALSE:

Avoid fueling your bus with riders on board unless absolutely necessary. never refuel in a closed building with riders on board.

Do not talk with riders or engage in any other distracting activity while driving.

Do not tow or push a disabled bus with riders aboard either vehicle, unless getting off the bus would be unsafe.

Do not transport intoxicated passengers.

34 / 40

When driving on a clear night with the vehicle lights on, your speed should be such that you can stop within _____.

the length of half a football field

the distance you will travel in 10 seconds time

the distance you can see ahead of you

2 times the length of your vehicle

35 / 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

36 / 40

This carries hydraulic fluid or air to the wheel brake assemby.

Brake lines/hoses

Brake drums

Connector rods

Slack pieces

37 / 40

The emergency air line is used to:

to alert emegency services when there is a problem

provide back up air pressure

engage the trailer brakes when there is an air pressure loss

engage the tractor's front brake when there is air pressure loss

38 / 40

What is the best way to stop all skids?

accelerate and countersteer

restore traction back to the tires

use controlled or stab braking

quickly turn the steering wheel side to side

39 / 40

Which of the following is NOT an important reason to look far ahead when you are driving?

determine if there are any hills coming up

determine if there are any upcoming traffic lights that might require you to stop

look for vehicles coming into your lane

look for brake lights from slowing vehicles

40 / 40

The correct trailer height when coupling the rear trailer is:

slightly lower than the center of the fifth wheel

the kingpin is touching the fifth wheel

there is 5 inches of space between the lower and upper fifth wheel

when the locking jaws are open around the kingpin

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