Wyoming Doubles / Triples CDL Practice Test
Below are 25 exam-style questions for the Wyoming Doubles / Triples CDL knowledge test, modeled on the FMCSA-aligned content used by the Wyoming Department of Transportation. 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 Random order
- B Reverse of coupling — disconnect rear trailer first, then dolly
- C No specific order
- D Disconnect tractor first
- A Engines
- B Drivers
- C Air lines, electrical lines, and connection points
- D Fuel tanks
- A A type of bus
- B A train carrying buses
- C A type of car carrier
- D A combination with a second trailer that has a kingpin attached to the first trailer
- A Skip the parking brake
- B Allow the dolly to roll
- C Set the parking brake or chock the wheels before disconnecting
- D Disconnect at high speed
- A Continue with damaged tires
- B Use the spare
- C Ignore the damage
- D Replace before operating
- A Pintle hooks and safety chains
- B Glad hands and seals at every connection
- C All of the above
- D Dolly air-tank pressure
- A The right lane on multilane highways when possible
- B The shoulder
- C The left lane
- D Any lane
- A Total combination length when turning, parking, and changing lanes
- B Tractor length only
- C No specific length
- D Trailer length only
- A Back without a spotter when possible
- B Skip the air-brake check
- C All of the above
- D Drive faster than conditions allow
- A Avoid it; if necessary, uncouple to a single trailer first
- B Use only mirrors
- C Have a passenger guide you
- D Back at full speed
- A Brake hard
- B Continue normally
- C Slow down and reduce steering input — rollover is imminent
- D Increase speed
- A Should be driven slowly with extra following distance
- B Can maintain normal speed
- C Should change lanes frequently
- D Should brake hard
- A Is decorative
- B Is electrical
- C Prevents accidental release of the hook
- D Is the same as a fifth wheel jaw
- A All of the above
- B Cargo placement
- C Wind, especially crosswinds and from passing trucks
- D Lane changes
- A Drop first trailer, hook converter dolly to first trailer, back tractor to second trailer, etc.
- B Random order
- C Trailers first, then tractor
- D Tractor to second trailer first
- A The rear trailer swinging more than the tractor in turns or lane changes
- B A loose load shifting
- C A driver punishing the truck
- D A tire blowout
- A Better fuel mileage
- B No change in handling
- C It can sway and lift more easily; drive carefully
- D It is harder to roll over
- A Plan the turn carefully and use multiple lanes if necessary
- B Skip the planning
- C Maintain speed
- D Turn sharply
- A Never; the dispatcher tests them
- B Only at the destination
- C Once a year
- D Before pulling away from the coupling site
- A It uses different brakes
- B It is shorter
- C It accelerates faster
- D Total length and weight increase stopping distance and require more reaction time
- A Be aware of the increased complexity of the equipment and operate accordingly
- B Skip the pre-trip
- C Drive as if it were a single trailer
- D Use the trailer hand valve as a parking brake
- A Off-tracking is less than a single trailer
- B Off-tracking is more pronounced; swing wider than for a single trailer
- C No off-tracking occurs
- D Use the left lane
- A Air lines only on the tractor
- B Air lines from tractor to first trailer to dolly to second trailer
- C Mechanical brakes only
- D No air-brake system
- A All of the above
- B Crosswind sensitivity
- C Reduced visibility around the second trailer
- D Increased rollover risk in curves
- A Take the shortest route regardless
- B Avoid restricted roads and minimize sharp curves and steep grades
- C Avoid freeways
- D Drive only at night
Study tips for the Wyoming Doubles / Triples exam
The Doubles / Triples portion of the Wyoming CDL exam is graded out of the bank of questions the Wyoming Department of Transportation draws from each year. While the exact bank is not published, every question is sourced from the Doubles / Triples chapter of the Wyoming 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 Wyoming 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 Doubles / Triples.
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 Wyoming Department of Transportation 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 Doubles / Triples 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 Wyoming General Knowledge practice test before scheduling the real exam.
Next steps
Missed more than four questions? Re-read the Doubles / Triples study guide and the matching chapter in the official Wyoming 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 Wyoming Department of Transportation office.
Already comfortable with this endorsement? Drill another: WY General Knowledge · WY Air Brakes · WY Combination Vehicles · WY Hazardous Materials · WY Passenger · WY School Bus · WY Tank Vehicle
New to the CDL process in Wyoming? Read How to apply for a CDL in Wyoming for the document checklist and step-by-step timeline.