South Carolina Hazardous Materials CDL Practice Test
Below are 25 exam-style questions for the South Carolina Hazardous Materials CDL knowledge test, modeled on the FMCSA-aligned content used by the South Carolina Department of 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 On a public street within 5 feet of the road
- B Within 300 feet of a tunnel, bridge, or building used by the public, except for short rest stops
- C In a designated truck stop
- D In any rest area
- A Twelve
- B Five
- C Seven
- D Nine
- A Stay upwind, evacuate the area, and let trained responders handle it
- B Try to put it out with water
- C Open the cargo doors to ventilate
- D Drive the vehicle to a safe place
- A An expired permit or shipper certification missing
- B A logbook
- C Cargo securement straps
- D A medical card
- A An area approved by federal, state, or local authorities for parking unattended hazmat vehicles
- B A motel near the route
- C Any 24-hour gas station
- D A weigh station
- A Annually only
- B Once per year by federal officials
- C When the tank is full
- D Before each trip and at every stop
- A Only required for explosives
- B Mailed to the receiver
- C Carried in the trailer
- D Carried in the cab and used by responders to look up immediate response information for hazmat
- A Refer to the ERG
- B Refer to 49 CFR Parts 100-185 (HMR)
- C Contact the carrier safety officer
- D All of the above
- A Hand off the unloading to the receiver
- B Stay within 25 feet of the vehicle and have a clear view of it
- C Leave the truck and return when finished
- D Disconnect the bonding wire first
- A Driver's name
- B Color of packaging
- C Price only
- D Proper shipping name, hazard class, ID number, and required emergency information
- A Pass a TSA security threat assessment including fingerprinting
- B All of the above
- C Renew the TSA assessment periodically
- D Notify the carrier of any incident
- A Two
- B One
- C Six
- D Four (one on each side and one on each end)
- A Be left where it is, the area isolated, and the carrier and emergency services notified
- B Be driven to the destination
- C Be unloaded by the driver alone
- D Be moved to a remote area immediately
- A A separate trailer license
- B A medical card upgrade
- C A pilot car
- D X (combination of H and N for tank vehicles carrying hazardous materials)
- A Only at the start of the trip
- B When the brakes feel different
- C At each stop
- D Only at the destination
- A Call your dispatcher only
- B Check the load for leaks first
- C Contain the spill
- D Protect yourself and isolate the area
- A Class 1 explosives, to determine which can be loaded together
- B Drivers, not cargo
- C All hazmat materials
- D Cargo tank vehicles only
- A Vehicles whose driver and equipment meet all federal safety requirements
- B Any vehicle
- C Pickups only
- D Vehicles older than 5 years
- A Marked with the proper shipping name, ID number, and required labels
- B Painted any color
- C Made of glass only
- D Stored only at night
- A 50 feet
- B 10 feet
- C 25 feet
- D 100 feet
- A Drive at night only
- B Avoid weigh stations
- C Have a written route plan if required by the shipper or by federal/state rules
- D Take the most direct route regardless of restrictions
- A Always keep them together
- B Cover the explosives with the liquids
- C Load them in the same compartment
- D Check the segregation table — many combinations are forbidden
- A Any single placard
- B Two or more separate placards on a load that contains different hazard classes (Table 2 materials only)
- C Only on Class 1 explosives
- D Never
- A Cargo blocks emergency exits
- B Containers can rub against each other
- C Cargo cannot shift, leak, or be exposed to ignition sources
- D They can shift freely
- A Engine must be off
- B All of the above
- C The driver must be at the fueling control
- D No smoking within 25 feet
Study tips for the South Carolina Hazardous Materials exam
The Hazardous Materials portion of the South Carolina CDL exam is graded out of the bank of questions the South Carolina Department of Motor Vehicles draws from each year. While the exact bank is not published, every question is sourced from the Hazardous Materials chapter of the South Carolina 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 South Carolina 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 South Carolina Department of 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 South Carolina 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 South Carolina 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 South Carolina Department of Motor Vehicles office.
Already comfortable with this endorsement? Drill another: SC General Knowledge · SC Air Brakes · SC Combination Vehicles · SC Passenger · SC School Bus · SC Tank Vehicle · SC Doubles / Triples
New to the CDL process in South Carolina? Read How to apply for a CDL in South Carolina for the document checklist and step-by-step timeline.