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

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

All of these answers are correct.

To replace the parking brake.

To replace the rear door emergency buzzer.

As a safety feature when the exit door is open.

2 / 40

The container for the mechanism that transforms the steering column action into wheel action is:

Steering linkage

Steering hoses/box

Air brake system

Locking pin

3 / 40

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

to provide greater control of your vehicle

to prevent the left sided brake from locking up

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

tanks usually do not need to be drained

4 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

Lug nuts

None of the answers listed

Rims

Bolt spacers

5 / 40

What is a common cause of tire fires?

cold tires

underinflated tires

overinflated tires

all of these answers are correct

6 / 40

What is the value of the overhead rear-view mirror inside of the bus?

To monitor passenger activity.

To check blind spots.

To monitor the driver's appearance.

To provide visibility directly in the back of the bus.

7 / 40

Select the statement of what you should not do if you are required to drive through flowing water or deep puddles.

shift into a lower gear

quickly turn the steering wheel side to side

drive at a high speed

increase engine rpm

8 / 40

What do you need to do to supply air to the air tanks of the second trailer?

none of the answers listed

close the shut off valves at the back of each trailer

open up the shutt off valves on the rear of the first trailer and close the shut off valve at the back of the second trailer

open the shut off valve at the back of both trailers

9 / 40

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

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.

All of these answers are correct.

10 / 40

Select the true statement in regards to brake drums:

They are located at both ends of the axles of the vehicle.

They are bolted to the wheels.

All of these answers are correct.

Hold the brake linings and shoes.

11 / 40

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

Frame

Fifth wheel

Spacers

Lug bolts

12 / 40

What is the safest way to stop unruly behavior on the bus?

pull off the road in a safe location, secure the bus, stand up, and tell the students what behavior you expect of them

keep checking the rear view mirror so you can see what happened and report to the principal

yell loudly for the students to sit down and behave themselves

have the unruly students move to the front of the bus

13 / 40

Select the true statement in regards to empty trucks:

they may have poor traction due to bouncing and wheel lockup

they require a shorter stopping distance than a fully loaded trailer

none of the answers listed

they are easier to stop because there isn't cargo shifting in the trailer

14 / 40

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

the air compressor

the engine protection valve

the one-way check vavle

the tractor relay valve

15 / 40

When is it acceptable for non-hazardous materials to be described by hazard class words or identification numbers?

During an emergency

For hazards not described in the hazmat manual

Always

Never

16 / 40

Select the correct description for a bulkhead tank.

They are divided down into smaller tanks.

They are divided with holes to allow liquid to flow through controlling surge.

None of the answers listed.

It is one large tank.

17 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

safety for yourself and other road users

to make sure the vehicle will make your destination

to make sure nothing has been stolen from the vehicle

because other drivers do it

18 / 40

When transporting hazardous waste, you must:

All of these answers are correct.

Have the word "waste" before the name of the material on the bills.

Sign a uniform hazardous waste manifest.

Carry a uniform hazardous waste manifest in the truck.

19 / 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.

20 / 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

all of these answers are correct

it provides the air supply to the brake system

21 / 40

Anti-lock brakes:

Are not available in mosst busses.

Lengthen stopping distance.

Work only when you activate in-cab switch.

Keep your wheels from locking during hard brake application.

22 / 40

Select the two reasons as to why special care is needed when driving a tank vehicle:

The danger of surge and the high center of gravity.

The danger of surge and the low center of gravity.

The chance of rollover and of spontaneous combustion.

None of the answers listed.

23 / 40

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

Any bulk packaging and the cargo tanks.

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

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

On a temporary license plate holder and the steering wheel.

24 / 40

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

They are fitted just right.

There is a leak somewhere.

They need to be changed out.

They are loose.

25 / 40

There must not be more than_____for engine compartment belts.

1/2 inch of play at the center of the belt

1/4 inch of play at the ends of the belt

1/2 inch of play at the end of the belts

3/4 inch of play at the center of the belt

26 / 40

What does the amount of liquid allowed in the tank depend on?

The size of the tank.

All answers listed.

The legally allowed weight limits.

Whether and how much the liquid will expand during the trip.

27 / 40

In safe driving, what does communicating mean?

all of these answers are correct

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

using a cb radio to let others know your intentions

using hand signals

28 / 40

What product is typically carried in a liquid tank trailer without baffles?

Hydrogen peroxide.

Fertilizer.

Food or milk products.

Fuel.

29 / 40

This object is required to be checked for damage, that it's secure, and strong enough to handle any cargo.

The platform

The apron

The header board

The fifth wheel

30 / 40

Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses after finishing that delivery?

Turn it off before unhooking.

Turn if off after unhooking.

Turn it off on arrival—use other power to run the pump.

Leave it on the entire time.

31 / 40

Which of the following statements about the bus interior is false?

Never drive with an open emergency exit door or window.

If there is a red emergency door light, it must work.

If you use your outside lights, you don't need to turn on red emergency door light.

The seats must be safe for riders all seats must be securely fastened to the bus.

32 / 40

Make sure that____when the front trailer supports are up and the trailer is resting on the tractor.

the kingpin has been removed

there is enough clearance between the lower and upper fifth wheel

there is enough clearance between the landing gear and the tractor frame

the safety latch is in the open position

33 / 40

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

stay off the brake and hold the steering wheel firmly

disengage the clutch so you are in neutral gear

accelerate quickly until you find a place to pull over

pump the brakes until you come to a stop

34 / 40

Which of the following must be closed while the bus is in motion?

Emergency windows

Roof vents

Windows

Both hatches

35 / 40

Which of the following is a reason to evacuate the school bus?

The bus is stalled on a shoulder of a 4-lane divided highway and it is getting hot inside.

The bus abs warning light is on.

A child set off a stink bomb inside the bus.

The bus is stalled on a rail road track, but there is no train in sight.

36 / 40

What is the next step after securing the bus when you have an unruly child on board?

Unload the student at the next stop.

Call school administrator or the police to remove the student.

Stand up and speak respectfully to the offender, if a change of setting is needed, have the student move to a seat near you.

Remove the student from the vehilce for the safety of the other children.

37 / 40

Select the true statement about handling triples and doubles:

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

triples and doubles handle the same as singles

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

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

38 / 40

Select how brakes work on long, steep downgrades:

it does not do anything

they are a supplement to the braking effect of the engine

it is the main braking mechanism

it's the main braking mechanism with the engine braking system available for emergency situations

39 / 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 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.

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.

40 / 40

What color and shape is the trailer air supply control?

it is an 8-sided knob that is red

it is a triangle-shaped knob that is red

it is a square knob that is red

it is a square knob that is yellow

Your score is

The average score is 50%

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