florida
CDL Practice Test

This site is available to take practice questions to prepare for the Florida CDL test. The questions on these practice tests come from the Florida CDL Handbook. The tests are free and you are able to take them as many times as you would like. Use these practice tests as a way to prepare to obtain a CDL in Florida. 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. Good luck!

1 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

time of day

weather

length and steepness of grade

total weight of the vehicle and cargo

2 / 40

Students exit the bus and walk:

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

Across the street.

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

The distance it takes to clear the danger zone.

3 / 40

In the slide mechanism of the sliding fifth wheel, this object should have no missing pins or be loose when fully engaged.

Locking pins

Pintle hook

Kingpin

Rock jaw

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

That is designed to carry more than nine passengers.

That has air brakes.

5 / 40

What are spring brakes?

they are powerful springs that hold back air pressure when driving

all of these answers are correct

they are brakes that automatically come on for a truck or trailer when the psi drops too low

they do not function when the psi falls below 30 psi

6 / 40

Under which two special conditions should you downshift?

before starting down a hill and before entering a curve

if there is an accident and in sudden heavy rain

before starting down a hill and before going up a hill

before entering a curve and before going up a hill

7 / 40

What position should the heaviest trailer be in when pulling 3 trailers?

in the middle

in the front

in the back

it makes no difference

8 / 40

The correct trailer height when coupling the rear trailer is:

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

slightly lower than the center of the fifth wheel

9 / 40

A vehicle placarded for Division 1.1, 1.2, or 1.3 explosives:

May never be left unattended under any condition.

May be left unattended in a safe haven.

May never be parked on private property.

May not be parked on the cosignee's property.

10 / 40

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

When stopping or starting.

When unloading or loading.

When hauling food or milk products.

All answers listed.

11 / 40

This gauge will indicate if the generator or alternator is charging:

Oil pressure

Coolant

Voltmeter/ammeter

Gas tank

12 / 40

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

They are loose.

There is a leak somewhere.

They are fitted just right.

They need to be changed out.

13 / 40

How should the hand valve be used?

when the trailer is fully loaded down

to test the trailer brakes

only in emergency situations

only in conjuction with the foot brake

14 / 40

Which of the following hazard classes utilizes a transport index in order to determine how much of it can be loaded on a single vehicle for transport?

Class 7—radioactive materials

Class 1—explosives

Class 4—live chickens

Class 3—flammable liquids

15 / 40

What is a king pin?

it is a pin that locks the air brake lines together

it is a pin that holds the wheel on to the axles

it is a pin that a driver receives for being a safe driver

it is a pin that locks the trailer to the tractor on the fifth wheel

16 / 40

Check to ensure that____when inspecting the coupling.

there is no slack at all in the air lines

the landing gear handle is free to hang down

there is minimal slack in the air lines

the electrical cable is unplugged

17 / 40

The baffles in a tank trailer help to control:

The overall weight of the vehicle.

The distrubition of weight.

The movement of liquid from front to back.

The flow of liquid side to side.

18 / 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

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

continue on with your trip

decrease your speed and test the other system

19 / 40

Why should you test the tractor protection valve?

to avoid loss of air from the air hose

to avoid loss of air from the trailer brakes

all answers listed

to avoid the emergency brakes kicking on due to loss of air

20 / 40

What must vehicles with air brakes have?

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

a minimum of 2 air tanks

all of these answers are correct

21 / 40

Which trailer is more likely to roll over when pulling 3 trailers?

the tractor

the second trailer

the first trailer

the last trailer

22 / 40

Some hazardous materials may not be loaded together with other hazardous materials. The prohibited combinations are listed in the:

Segregation and separation chart.

Hazardous materials table.

List of hazardous materials and reportable quantities.

Hazardous waste manifest.

23 / 40

After deciding the type of evacuation that is necessary, the next step you must take is:

Dangle the radio microphone out of the driver window for later use.

Notifying the dispatch office of the evacuation.

Securing the bus.

Opening the emergency exits.

24 / 40

How do you check the air flow to the last trailer?

while on an level surface, test the emergency brake lines

listen for escaping air after opening the emergency shut off valve

watch the brake lights as you step on the brake pedal

pull the vehicle forward and then step on the brakes

25 / 40

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

All of these answers are correct.

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

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

Be closed when operating the bus.

26 / 40

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

Locking pin

Steering linkage

Steering hoses/box

Air brake system

27 / 40

When would you lock some emergency roof hatches in a partly open position?

For fresh air

First day of spring

Never

Whenever you enter a tunnel

28 / 40

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

7 seconds

3 seconds

6 seconds

4 seconds

29 / 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

30 / 40

You do not have to stop at railroad crossings, but must slow down and carefully check for other vehicles:

Where a policeman or flagman is directing traffic.

All of these answers are correct.

At crossings marked as "exempt" or "abandoned".

If a traffic signal is green.

31 / 40

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

To replace the rear door emergency buzzer.

To replace the parking brake.

As a safety feature when the exit door is open.

All of these answers are correct.

32 / 40

What is incorrect concerning disruptive passengers?

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

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.

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

33 / 40

Select the true statement in regards to stopping distance and speed:

Larger / heavier vehicles generally take longer to stop.

You require 4 times as much stopping distance when driving at 40 mph compared to 20 mph.

A wet road will double the stopping distance at any speed.

All answers listed.

34 / 40

If a rider wants to bring a car battery or a can of gasoline or kerosene aboard your bus, you should:

Instruct the rider to sit next to an open window.

Put the materials in the bus's "safe box".

Not allow the rider to do it.

Have the rider pay a second fare.

35 / 40

The minimum tread depth for steering axle tires is:

None of the answers listed

14 mm

2/23 inch

4/32 inch

36 / 40

You should_____to uncouple the converter dolly.

disconnect the safey chains, lower the landing gear, and chock the wheels

lower the landing gear, disconnect the safety chain, and chock the wheels

chock the wheels, disconnect the safety chains, and then lower the landing gear

chock the wheels, lower the landing gear, and disconnect the safey chains

37 / 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

38 / 40

Which of the following statements about special danger of loading and unloading is true?

Students should be told to pick up any dropped objects as long as it is not under the bus.

Students should be told to leave any dropped objects and move to the point of safety out of danger and get the driver's attention to retrieve the object.

Students should be told not to use the handrails when exiting the bus due to the possibility of causing a clothing hang up.

Students should be told to remain seated while the bus is in motion.

39 / 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

your speed increases when pressure is removed from the brake pedal

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

40 / 40

After coupling with a trailer, what position should the front trailer supports be in before driving away?

raised to the top and then taken 3 cranks down and the crank handle stored in its bracket

in the fully raised position with the crank handle secured to its bracket

none of the answers listed

raised half way with the crank handle stored in the cab

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

CDL Practice Test

How To Get A florida Commercial Drivers License

Applicants can get their CDL at the age of 18. Person between the ages of 18 and 21 are restricted to intrastate driving, cannot drive doubles or triples, and may not be endorsed for Hazmat transport. Those age 21 and older may receive all available endorsements and drive interstate. CDL applicants must obtain a DOT medical card to be eligible for their commercial driver’s license.

Any drivers that fall into the below categories are disqualified from obtaining their CDL.

Having a license from any other state than Florida.
Being convicted of driving impaired in a commercial vehicle in the past two years.
Having a suspended, revoked, or canceled driver’s license.
Being disqualified from CDL driving privileges in another state.

All applicants must complete one or more knowledge tests and a skills test in order to be eligible to receive their commercial driver’s license.

Endorsements
H – Hazmat
N – Tank Vehicles
P – Passengers
S – School Bus
T – Double / Triple Trailers
X – Placarded Hazmat & Tank Vehicles

Hit the Open Road

florida CDL License Test Tips

Each applicant is required to complete a knowledge test in order to receive their CDL, with a score of 80% or better. Depending on the Class and Endorsements sought, there are multiple knowledge tests that much be taken. These include:

Class A – 70 Questions (50 General Knowledge + 20 Combined Vehicle)
Class B,C – 50 General Knowledge Questions
Passenger, Doubles/Triples, and Tank Endorsements – 20 Questions
School Bus Endorsement, Air Brake Restriction Removal – 25 Questions
Hazmat Certification – 30 Questions

All applicants must complete a three section skills test. This includes a vehicle inspection, on-road driving assessment, and basic controls test. Those seeking endorsements for School Bus and Passengers as well as the Air Brake Restriction Removal will need to complete the skills test in the respective vehicle for their endorsement or removal. For example, those seeking the School Bus Endorsement must complete the skills test in a school bus.

Additional Information

Information on the Florida Department of Highway Safety & Motor Vehicles

The Florida Highway Safety and Motor Vehicles provides oversight and administration for the CDL requirements and testing in Florida. To get more information contact them via:

Website: https://www.flhsmv.gov/driver-licenses-id-cards/commercial-motor-vehicle-drivers/

Phone: 850.617.2606

Additional Florida CDL Helpful Links

Please use the links below to access more valuable Florida CDL testing resources and to learn more about practice driving tests for the state of Florida.

florida CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A florida Commercial Drivers License

Hit the Open Road

florida CDL License Test Tips

Additional Information

Information on the Florida Department of Highway Safety & Motor Vehicles

Additional Florida CDL Helpful Links

florida
CDL Practice Test