Montana Hazardous Materials CDL Practice Test
Below are 25 exam-style questions for the Montana Hazardous Materials CDL knowledge test, modeled on the FMCSA-aligned content used by the Montana Motor Vehicle Division. 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 Truck designed for the specific class
- B Vehicle without working brake lights or in unsafe condition
- C Vehicle in compliance with HMR
- D Properly placarded trailer
- A Any quantity of any hazardous material
- B Only at night
- C Only liquids
- D Bulk quantities or any amount of certain Table 1 materials
- A Avoid Class A highways only
- B Have written instructions on what to do in case of accident or delay
- C Travel with a state escort
- D Drive only between 8 a.m. and 6 p.m.
- A Only liquids in port areas
- B Cargo that may be harmful to aquatic life and requires special marking
- C Bulk shipments
- D Hazardous waste only
- A Must meet special standards or be turned off
- B May only be used after 6 p.m.
- C Are unrestricted
- D Must be operated by the receiver
- A Vehicles older than 5 years
- B Vehicles whose driver and equipment meet all federal safety requirements
- C Pickups only
- D Any vehicle
- 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 Cover the explosives with the liquids
- B Load them in the same compartment
- C Always keep them together
- D Check the segregation table — many combinations are forbidden
- A Annually only
- B When the tank is full
- C Before each trip and at every stop
- D Once per year by federal officials
- A Within 50 feet of the crossing
- B Between 15 and 50 feet from the nearest rail
- C Only when a train is approaching
- D Only at night
- A The number of cars
- B The train's schedule
- C The train's crew
- D A document describing all hazardous materials being carried
- A Stay within 25 feet of the vehicle and have a clear view of it
- B Hand off the unloading to the receiver
- C Disconnect the bonding wire first
- D Leave the truck and return when finished
- A Refer to the ERG
- B Contact the carrier safety officer
- C Refer to 49 CFR Parts 100-185 (HMR)
- D All of the above
- A Cargo cannot shift, leak, or be exposed to ignition sources
- B Containers can rub against each other
- C They can shift freely
- D Cargo blocks emergency exits
- A At 10, 100, and 200 feet from the vehicle
- B Within 10 feet only
- C Only at night
- D At 50 and 100 feet
- A Inspected once a year only
- B Bonded and grounded during loading and unloading
- C Loaded only by the receiver
- D Loaded only at night
- A Be locked
- B Have a flashing light on
- C Be attended by the driver
- D Be in a low gear
- A Have current TSA security threat assessment
- B All of the above
- C Have current hazmat training
- D Carry shipping papers and ERG
- A Four (one on each side and one on each end)
- B Two
- C Six
- D One
- A Painted any color
- B Marked with the proper shipping name, ID number, and required labels
- C Stored only at night
- D Made of glass only
- A A Hazmat (H) endorsement on their CDL
- B A separate license
- C No special endorsement
- D A medical card only
- A Move and obstruct visibility
- B All of the above
- C Cause a leak or spill if the package is damaged
- D Strike emergency exits
- A Only the shipper's name
- B Only the price
- C A proper shipping name, hazard class, and identification number
- D Driver's license number
- A Seven
- B Twelve
- C Nine
- D Five
- A Be unloaded by the driver alone
- B Be driven to the destination
- C Be moved to a remote area immediately
- D Be left where it is, the area isolated, and the carrier and emergency services notified
Study tips for the Montana Hazardous Materials exam
The Hazardous Materials portion of the Montana CDL exam is graded out of the bank of questions the Montana Motor Vehicle Division draws from each year. While the exact bank is not published, every question is sourced from the Hazardous Materials chapter of the Montana 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 Montana 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 Montana Motor Vehicle Division 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 Montana 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 Montana 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 Montana Motor Vehicle Division office.
Already comfortable with this endorsement? Drill another: MT General Knowledge · MT Air Brakes · MT Combination Vehicles · MT Passenger · MT School Bus · MT Tank Vehicle · MT Doubles / Triples
New to the CDL process in Montana? Read How to apply for a CDL in Montana for the document checklist and step-by-step timeline.