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

_____ create a little above 90 degree angle between the adjuster arm and push rod when the brakes are released and no less than 90 degrees when the brakes are applied.

brake disc

air lines

slack adjusters

brake drums

2 / 40

Where can you find a shipper’s certification?

On all packages.

On the original shipping paper.

There is no such thing.

It is a separate document that all hazmat drivers must keep in their vehicles.

3 / 40

If your bus is equipped with an emergency exit door, it must:

All of these answers are correct.

Be secured when the bus is being driven.

Always have a red door light turned on.

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

4 / 40

In what position should shut off valves on the rear of the last trailer be in on a set of double trailers?

in an open position

in a closed position for the rear trailer and an open position for the front trailers

in a closed position

in an open position for the rear trailer and a closed position for the front trailer

5 / 40

Is it important to look into the back of the fifth wheel to see if the lockpin is locked in?

only every 7 days

yes

only at the end of the shift

6 / 40

The trailer should be lowered so that _____.

the trailer is high above the fifth wheel

it is slightly raised when the tractor is backed under it

you are able to use the landing gear to make adjustments

the tractor comes in contact with the nose of the trailer

7 / 40

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

the tractor relay valve

the one-way check vavle

the air compressor

the engine protection valve

8 / 40

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

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

Never drive with an open emergency exit door or window.

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

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

9 / 40

You must carry a gas mask with you when transporting:

Liquid gas

Poison

Flammable materials

Chlorine

10 / 40

You should check the_____when loading small tanks equipped with bulkheads.

distribution of the weight

fuel to air ratio

percentage of water

expansion rate

11 / 40

How should the shut off valves at the rear of the trailer be when inspecting doubles?

closed at the rear of the last trailer and front trailer

closed at the rear of the last trailer and open at the rear of the front trailer

none of the answers listed

open at the rear of the last trailer and front trailer

12 / 40

Select the true statement in regards to managing the space to the sides:

high wind gusts will not cause any issues for doubles or triples

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

you should try to avoid driving next to others when possible

you should drive down the center of both lanes over the pavement markings

13 / 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 60,000 miles on it

false

true

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

14 / 40

What is a supply pressure gauge used for?

it tells you how much slack is in the slack adjusters

all of these answers are correct

it tells you how much pressure is in the air tanks

it tells you how much pressure is in the air lines

15 / 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

there will be a trailer jackknife

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

the rig will slide sideways but stay in a straight line

16 / 40

Is it mandatory that all vehicles with air brakes have low air pressure warning signals?

for small vehicles only

for large vehicles only

yes

17 / 40

Select the false statement about tractor protection valves.

should the trailer air leak, it keeps the air in the tractor

the trailer air supply valve in the cab controls it

if the air pressure is low it will automatically close

air is allowed to leak from the tractor line when it is closed

18 / 40

______is a device that connects the service and emergency air lines between the tractor and trailer.

Service lines

Relay knife

Top off valves

Glad hands

19 / 40

What is incorrect concerning disruptive passengers?

It may be safer to wait and discharge the disruptive passenger at the next scheduled stop or a well-lighted area where there are other people.

You must ensure the disurptive rider's safety as well as that of others.

You must remove the disruptive passenger immediately for the safety of the others.

Don't discharge such riders where it would be unsafe for them.

20 / 40

Which trailer should be the first one after the tractor?

the trailer that weighs the least

none of the answers listed

the trailer that is the shortest in length

the trailer that weighs the most

21 / 40

Another term for a smooth bore tank is:

A liquid tank that does not have baffles.

A tank that is easily portable.

A liquid tank that has baffles.

A tank that is made out of stainless steel.

22 / 40

How do you make sure the trailer height is correct before coupling?

you do not need to do a visual check

visually check that they are level height wise

visually check that the lead trailer is higher than the fifth wheel so that the trailer will lower when the dolly is pushed under it

visually check that the rear trailer is lower than the fifth wheel so that the trailer raises slightly when the dolly is pushed under it

23 / 40

How often should you check the tires if your placarded trailer has dual tires?

Check tires every hour or 75 miles.

Check tires every 3 hours or 150 miles.

Check tires every 2 hours or 100 miles.

Check tires every 4 hours or 200 miles.

24 / 40

____is what can legally hold the parking brake or emergency brake in position for a bus, truck, or truck tractor.

All of these answers are correct

Air pressure

Spring pressure

Brake pressure

25 / 40

If you are transporting cargo, you should inspect the cargo and securing devices:

before the trip

within the first 50 miles of driving

before the trip, within 50 miles after beginning the trip, and at least every 150 miles or 3 hours

during every driving brake on the trip

26 / 40

What handling effect will baffles have?

There will be an increase in slow surge.

There will be less of surging front to back.

There will be less side to side surging.

None of the answers listed.

27 / 40

Select the true statement in regards to empty trucks:

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

they may have poor traction due to bouncing and wheel lockup

28 / 40

Which of the following statements is true about speed management?

The posted speed limit is safe for all conditions.

Speed limits for buses are the same as cars.

You should be able to stop within the distance that you can see ahead.

All of these answers are correct.

29 / 40

What is the best way to prevent brakes form overheating while drive down a steep grade?

drive at a speed of 5 mph below your safe speed

use countersteering practices

use the trailer brakes only

use the stab braking method

30 / 40

Where should you place your warning devices if you must stop on a one-way or divided highway?

10 feet, 100 feet, and 200 feet toward approaching traffic

20 feet, 50 feet, and 100 feet toward approaching traffic

50 feet, 100 feet, and 150 feet toward approaching traffic

100 feet, 200 feet, and 300 feet toward approaching traffic

31 / 40

What should you do if the low air pressure warning comes on for only one system in a truck or bus that has a dual air brake system?

decrease your speed and head to the closest mechanic

decrease your speed and test the other system

continue on with your trip

stop and safely park your vehicle only continue once the issue has been resolved

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

all answers listed

the kingpin is over the fifth wheel

the center of the kingpin is past the locking jaw

33 / 40

Drivers placard their vehicle to _____ the risk.

communicate

take away

minimize

elevate

34 / 40

Select the true statement about what the Air Compressor Governor controls:

it controls when the brakes will be applied

it controls when the warning system is activated

it controls when the air compressor pumps air into the storage tanks

it controls when air is released from the storage tank

35 / 40

How do you know when your brakes are fading?

to control your speed on a downgrade you have to apply less pressure to the break pedal

the brake pedal flops to the cabin floor

to control your speed on a downgrade you have to push harder on the brake pedal

your speed increases when pressure is removed from the brake pedal

36 / 40

When is it best to wear your seat belt?

Always.

Only when you will be driving over 35 mph.

Only if your bus holds more than 27 people.

Only if required by company policy.

37 / 40

The main reason you should pull the dolly out from under a trailer before disconnecting it from the trailer in front is:

removing the dolly before uncoupling is not the correct procedure

so the rear-trailer's air brake system will stay charged and keep the trailer wheels locked to prevent rolling

it is possible that the dolly tow bar could fly up making it difficult to re-couple

to provide additional lateral stabilization to the front trailer

38 / 40

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

when parking in a commercial lot

when parking on a downgrade

never

when parking at a loading dock

39 / 40

Air tanks should be drained:

to prevent sludge from clogginng up the brake system valves

at the end of each shift or day

manually when the automatic devices fail

all of these answers are correct

40 / 40

A placard is required for a combustible liquid at?

Any amount

100 gallons

110 gallons

1,001 pounds or more

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