Florida Hazardous Materials CDL Practice Test
Below are 25 exam-style questions for the Florida Hazardous Materials CDL knowledge test, modeled on the FMCSA-aligned content used by the Florida Department of Highway Safety and Motor Vehicles. Try to answer each question on your own before reading the answer key directly under it. The questions and answer choices are shuffled deterministically per state and endorsement, so the order will stay the same on repeat visits — that lets you genuinely measure your improvement.
- A Park within 5 feet of a road
- B All of the above
- C Park near an open flame
- D Park near a fire
- A Cargo tank vehicles only
- B Class 1 explosives, to determine which can be loaded together
- C Drivers, not cargo
- D All hazmat materials
- A Five
- B Nine
- C Seven
- D Twelve
- A Move and obstruct visibility
- B Strike emergency exits
- C All of the above
- D Cause a leak or spill if the package is damaged
- A Special handling, additional documentation, and route planning
- B Vehicle escort
- C No special handling
- D Only a special placard at night
- A The driver has training
- B The receiver has paid
- C The shipper guarantees the load is properly classified, packaged, marked, labeled, and described per regulations
- D The carrier has insurance
- A Stay within 25 feet of the vehicle and have a clear view of it
- B Disconnect the bonding wire first
- C Hand off the unloading to the receiver
- D Leave the truck and return when finished
- A Call your dispatcher only
- B Check the load for leaks first
- C Contain the spill
- D Protect yourself and isolate the area
- A They can shift freely
- B Cargo blocks emergency exits
- C Cargo cannot shift, leak, or be exposed to ignition sources
- D Containers can rub against each other
- A Only if the receiver requests it
- B Yes — they should be readily identifiable for emergency responders
- C Only on long trips
- D No — mix them in with other paperwork
- A Refuse the load and notify the carrier — the shipper must use a proper shipping name
- B Skip the placards
- C Use a generic placard
- D Use the closest entry
- A Have a flashing light on
- B Be attended by the driver
- C Be in a low gear
- D Be locked
- A A pilot car
- B A medical card upgrade
- C A separate trailer license
- D X (combination of H and N for tank vehicles carrying hazardous materials)
- A Before each trip and at every stop
- B Annually only
- C When the tank is full
- D Once per year by federal officials
- A Allow shipper to drive away
- B Drive to the destination immediately
- C Verify shipping papers, placards, and securement before leaving the loading site
- D Take a break first
- A Loaded only at night
- B Loaded only by the receiver
- C Inspected once a year only
- D Bonded and grounded during loading and unloading
- A No special endorsement
- B A Hazmat (H) endorsement on their CDL
- C A medical card only
- D A separate license
- A Drive to the destination quickly
- B Open the container to inspect
- C Continue and report at the next stop
- D Stop, isolate the area, notify emergency services and the carrier
- A 25 feet
- B 10 feet
- C 50 feet
- D 100 feet
- A Driver's name
- B Color of packaging
- C Proper shipping name, hazard class, ID number, and required emergency information
- D Price only
- A Any vehicle
- B Vehicles whose driver and equipment meet all federal safety requirements
- C Vehicles older than 5 years
- D Pickups only
- A At each stop
- B When the brakes feel different
- C Only at the start of the trip
- D Only at the destination
- A Bulk quantities or any amount of certain Table 1 materials
- B Only at night
- C Any quantity of any hazardous material
- D Only liquids
- A Always keep them together
- B Load them in the same compartment
- C Cover the explosives with the liquids
- D Check the segregation table — many combinations are forbidden
- A Have a written route plan if required by the shipper or by federal/state rules
- B Avoid weigh stations
- C Drive at night only
- D Take the most direct route regardless of restrictions
Study tips for the Florida Hazardous Materials exam
The Hazardous Materials portion of the Florida CDL exam is graded out of the bank of questions the Florida Department of Highway Safety and Motor Vehicles draws from each year. While the exact bank is not published, every question is sourced from the Hazardous Materials chapter of the Florida CDL handbook, which itself is derived from the FMCSA Model Commercial Driver's License Manual. That means studying our practice tests, reading the corresponding handbook chapter, and re-reading the parts you got wrong is genuinely the most efficient route to a first-time pass.
Most successful applicants follow a simple cycle: take the practice test cold, write down every question you missed, open the matching chapter of the official Florida handbook, re-read the section that contains the right answer, then re-take the practice test 24 to 48 hours later. The 24-hour delay matters — sleep is when your brain commits new information to long-term memory, and CDL knowledge questions reward that kind of consolidated learning rather than cramming.
Pay particular attention to questions that include qualifier words like always, never, only, primary, or most. CDL test writers love to flip the right answer with a single qualifier. When two answer choices look almost identical, pay attention to the verb (is it must, should, or may?) and to any numbers (14 days, 100 air miles, 8 hours, 70/8 split). On endorsement tests in particular, watch for trick framing where a true statement about a different endorsement is offered as the "correct" answer to a question that is actually about Hazardous Materials.
Test-day logistics matter too. Bring photo ID, your Social Security card or birth certificate, your medical examiner's certificate (DOT card), and proof of state residency if you haven't already submitted those documents. The Florida Department of Highway Safety and Motor Vehicles will not let you sit for the knowledge exam without your documentation, and most offices charge an additional fee for re-attempts. Arrive early — the wait at most CDL testing offices runs 30 to 60 minutes — and silence your phone before the exam begins.
Finally, keep your General Knowledge fundamentals sharp even when you're focused on the Hazardous Materials exam. Many states administer multiple knowledge tests in a single sitting, and questions on weight definitions (GVWR, GCWR, GAWR), stopping distance, and the pre-trip inspection routine show up across endorsements. If you're unsure on the basics, sit a fresh Florida General Knowledge practice test before scheduling the real exam.
Next steps
Missed more than four questions? Re-read the Hazardous Materials study guide and the matching chapter in the official Florida CDL handbook. Then come back and re-take the test. Once you can score 22 of 25 or higher on three runs in a row, you're in good shape to schedule the real exam at your local Florida Department of Highway Safety and Motor Vehicles office.
Already comfortable with this endorsement? Drill another: FL General Knowledge · FL Air Brakes · FL Combination Vehicles · FL Passenger · FL School Bus · FL Tank Vehicle · FL Doubles / Triples
New to the CDL process in Florida? Read How to apply for a CDL in Florida for the document checklist and step-by-step timeline.