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

What is the main difference between a portable tank and a cargo tank?

Cargo tanks are permanently attached, portable tanks are temporarily attached.

Cargo tanks are filled while on the vehicle, portable tanks are filled while off the vehicle.

Portable tanks must additionally show the owner or lessee's name on them.

All of these answers are correct.

2 / 40

What gauge on the dashboard indicates electrical system charging rate?

The ammeter/voltmeter

The power gauge

The air gauge

The coolant pressure gauge

3 / 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, 21, and 3

Classes 1, 3, and 4

Classes 1, 4, and 51

4 / 40

A trailer is at the right height to have the tractor backed up to it when:

the top of the kingpin is even with the bottom of the fifth wheel

the fifth wheel will not come in contact with the kingpin

the kingpin is about 1 1/5 inches above the fifth wheel

it'll raise slightly when the tractor is backed up under it

5 / 40

What is incorrect concerning disruptive passengers?

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

You must ensure the disurptive rider's safety as well as that of 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 remove the disruptive passenger immediately for the safety of the others.

6 / 40

What are spring brakes?

they are big springs with air pressure in them if the air pressure decreases, the brakes are applied

they are large springs that are held closed by air pressure if the air pressure is increased the brakes are applied

none of the answers listed

they are powerful springs that are restrained by air pressure when the air pressure is removed, the brakes are applied

7 / 40

Where are shut off valves located on trailers that are doubles or triples?

on service air lines

on emergency and service air lines

on parking brake lines

on emergency air lines

8 / 40

What is a common cause of tire fires?

underinflated tires

overinflated tires

cold tires

all of these answers are correct

9 / 40

When you have a major leak in the service line and you apply pressure to the brakes, the service air pressure will escape and:

the tractor spring brakes will kick on

the trailer tank pressure will be gone

the trailer emergency brakes will kick on

the hand valve will stop functioning

10 / 40

Which of the following should you NOT do if you experience a tire failure?

engage the brakes hard and immediately

hold the steering wheel firmly

stay off the brake pedal

you need to be aware that a tire has failed

11 / 40

What type fire extinguisher is required in the power unit of a placarded vehicle?

Any of these are acceptable.

A ul rating of 10 b/c or above.

A ul rating of 5 b/c or above.

A ul rating of 15 abc.

12 / 40

Which of the following statements is FALSE:

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

Do not transport intoxicated passengers.

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

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

13 / 40

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

nothing will occur

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

it is easier to countersteer doubles/triples than other vehicles

14 / 40

When accelerating:

speed up smoothly and gradually and avoid jerking

always use the parking brake to slow down

do not engage the clutch before you take your foot off the brake

"hammer down" when your wheels start to spin

15 / 40

Why should you cover cargo?

because many states require it

to protect your cargo from bad weather

all of these answers are correct

to protect individuals from any spilled cargo

16 / 40

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

All answers listed.

A wet road will double the stopping distance at any 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.

17 / 40

When this item is missing or loose, movement may occur between the fifth wheel assembly and the frame.

Lug nuts

Locking jaw

Tandem release arm

Locking pins

18 / 40

An oncoming vehicle keeps its high beams on. You should deal with this hazard by:

Quickly flash your high beams to give them fair warning.

None of these answers are correct.

Look slightly to the right at a right lane or edge marking, if available.

Turning your high beams on to "get back at them".

19 / 40

The air leakage rate for a combination vehicle should not exceed ____psi a minute.

20 / 40

Select the true statement in regards to a converter dolly:

it is a coupling device with one or two axles and a fifth wheel with which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig

it is a connecting device consisting of one axle which disconnects a semitrailer combination vehicle converting it into two separate trailers

none of the answers listed

it is a coupling device with only two axles and a sixth wheel to which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig

21 / 40

When checking the wheelchair lift, the things you should look for are:

Leaking, damaged, or missing parts and that the lift is fully retracted and latched.

Bent or dinged lift floor.

Leaking, damaged, or missing wheelchairs.

Stripped screw drive linkages and fluid drips.

22 / 40

One reason hauling liquids in tank vehciles require special care is:

Because of strong winds.

Because of the extreme weight.

Because of the movement of the liquid.

Because of uneven expansion.

23 / 40

A placarded vehicle must have at least ___ placards?

three

four

six

two

24 / 40

What is a supply pressure gauge used for?

it tells you how much pressure is in the air tanks

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 lines

25 / 40

Select the statement that is true in regards to managing space to the sides.

you should try to avoid driving next to others when possible

high gust winds do not cause any issues for triples and doubles

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

all answers listed

26 / 40

You should____when an emergency requires you to quickly stop due to a crash.

maintain pressure on the brake pedal

use only the engine brakes

use the hand valve

use stab or controlled braking

27 / 40

To decide which placards you need, if any, what three things do you need to know?

Packing group numbers, amount being shipped, and amount of all hazardous materials of all classes on your vehicle.

Materials hazard class, location being shipped, and amount of all hazardous materials on your vehicle.

Materials hazard class, amount being shipped, and amount of all hazardous materials of all classes on your vehicle.

Materials hazard class, percentage of total volume, and amount of all hazardous materials on your vehicle.

28 / 40

If you have to swerve to avoid a hazard, it's important to:

None of these answers are correct.

Warn passengers with a loud and clear voice.

Know where other vehicles are around your bus by checking your mirrors.

Make sure your passengers are wearing seat belts.

29 / 40

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

about 100 feet behind your vehicle

about 100 feet in front of your vehicle

within 10 feet of the front or rear corners

on the other side of a divided highway

30 / 40

Select the true statement about convex ("spot") mirrors.

they make things look farther away and smaller than they actually are

they make things closer and larger than they really are

you do not need to look at them as often as flat mirrors

they are against the law in the majority of states

31 / 40

This object should be clean with no obstructions, illegal stickers or damage to the glass.

The windshield

The headlights

The lighting indicators

The side mirrors

32 / 40

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

in the middle

in the back

in the front

it makes no difference

33 / 40

Drivers who transport route controlled radioactive materials must carry a dated certificate of radioactive materials training. This training must have ocurred within the last:

2 years

4 years

3 years

1 years

34 / 40

Select the step that comes first:

apply a firm pressure to the trailer brakes

lower the landing gear

shift into reverse

connect the air supply lines

35 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

Make a final check to confirm all traffic stops before opening the bus door and signaling students to approach.

Activate the amber flashing caution lights to warn vehicles that the bus will stop to load passengers soon.

Place transmission in park or neutral and set parking brake.

Open the service door just enough to activate the alternating red light when traffic is in a safe distance from the bus.

36 / 40

If you are driving a 100-foot truck with double trailers at 30 mph in dry conditions, how many seconds of space should there be between your truck and other vehicles?

37 / 40

Select the statement that describes smooth bore tanks:

They are 1 large tank.

They are divided down into smaller tanks.

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

None of the answers listed.

38 / 40

You downshift automatic transmissions ______.

none of these answers are correct

half way down a hill

at the bottom of a hill

before going down a hill

39 / 40

You should_____when the low pressure warning is activated:

pump the brake pedal to come to a stop immediately

wait until the air brakes kick in automatically

maintain highway speed and keep an eye on your air pressure gauge

come to a safe stop while you still have control of the brakes

40 / 40

If you have riders on board, you must never refuel:

With any window open.

At any time.

Unless on a scenic tour bus.

In a closed building.

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