MO · P Endorsement

Missouri Passenger CDL Practice Test

Below are 25 exam-style questions for the Missouri Passenger CDL knowledge test, modeled on the FMCSA-aligned content used by the Missouri Department of Revenue. 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.

Heads up: this is a study tool, not a graded exam. Cover the answer with your hand or a sheet of paper for an honest practice run, then re-read the explanations for any questions you missed. Aim for 22 out of 25 or better, three times in a row, before scheduling the real exam.

Question 1 of 25

A bus with disabled passengers should:

A Use only the rear door
B Have working lifts/ramps and securements
C Charge extra fees
D Refuse to carry them

Correct answer: B

Federal accessibility rules require working lifts and securement for wheelchair users.

Question 2 of 25

A bus driver may NOT carry on the bus:

A Walking aids for passengers
B Carry-on luggage in approved overhead racks
C Service animals
D Class 6 (poison) liquids in passenger areas

Correct answer: D

Poison and other prohibited materials cannot ride in the passenger area.

Question 3 of 25

A bus may carry small-arms ammunition only:

A On freight trips only
B In any quantity
C In quantities and conditions allowed by federal regulations
D In bulk only

Correct answer: C

Limited quantities and proper packaging may be allowed; check regulations and company policy.

Question 4 of 25

During night driving, a bus driver should:

A Disable the dome lights
B Drive with high beams in oncoming traffic
C Speed up because traffic is lighter
D Reduce speed enough to stop within range of low-beam headlights

Correct answer: D

Distance you can see at night is shorter; speed must match.

Question 5 of 25

When you must back the bus:

A Honk and back rapidly
B Back without help to save time
C GOAL — Get Out And Look — and use a helper if available
D Have a passenger guide you

Correct answer: C

Backing in a bus is high-risk; check first and use a helper.

Question 6 of 25

A bus must be inspected at the end of the trip for:

A Sleeping passengers, items left behind, damage to seats and emergency exits
B Headlights only
C Tire pressure
D Fuel only

Correct answer: A

Post-trip walk-through includes a search for forgotten items and any damage to be reported.

Question 7 of 25

When carrying schoolchildren on a charter, the driver should:

A Drive faster to be on time
B Allow students to stand
C Use the same caution as a school-bus driver, even without an S endorsement, especially around loading and unloading
D Skip post-trip inspection

Correct answer: C

Children's safety considerations apply across all passenger operations.

Question 8 of 25

A bus driver should always:

A Carry an updated list of passengers, when required by carrier or law
B Verify all emergency equipment functions before each trip
C All of the above
D Have working emergency exit signs

Correct answer: C

All three are part of pre-trip and ongoing duties.

Question 9 of 25

A bus driver may not operate the bus while:

A Wearing prescription glasses
B Talking with passengers
C Using a hand-held mobile phone
D Having coffee

Correct answer: C

Federal rules prohibit hand-held mobile phone use while driving a CMV.

Question 10 of 25

When you stop at a railroad crossing in a bus, you should:

A Honk and proceed
B Open the door, listen, and look both directions
C Pump the horn
D Cross immediately

Correct answer: B

Open the door, turn off radio and noisy fans, and look and listen before proceeding.

Question 11 of 25

In a long downhill, a bus driver should:

A Coast in neutral
B Use a low gear and steady moderate brake application to control speed
C Apply brakes heavily
D Increase speed

Correct answer: B

Same long-downgrade rule as other heavy vehicles, with extra concern for passenger comfort and safety.

Question 12 of 25

When taking on passengers at a stop, the driver should:

A Start moving as the last passenger boards
B Close the door immediately
C Wait for all passengers to be safely aboard before beginning to move
D Press the accelerator slightly

Correct answer: C

Wait until everyone is on, paid (if needed), and seated or behind the standee line.

Question 13 of 25

When refueling a bus with passengers:

A Generally, fuel only when no passengers are aboard, per company policy and applicable regulations
B Refuel only at night
C Refuel with passengers freely
D Allow passengers to refuel

Correct answer: A

Most carriers prohibit fueling with passengers aboard; follow company policy.

Question 14 of 25

A bus driver must inspect the emergency exits:

A Once a year
B Only if a passenger asks
C Once a week
D Daily as part of the pre-trip inspection

Correct answer: D

Pre-trip checks include verifying that emergency exits open from inside and outside as designed.

Question 15 of 25

During an emergency stop on the highway, a bus driver should:

A Drive on the shoulder slowly
B Stop in the lane and wait
C Open all doors at speed
D Pull off as far as possible, set brakes, place triangles, evacuate if needed

Correct answer: D

Pull off, secure the bus, deploy warning triangles, and protect the passengers.

Question 16 of 25

Passengers may NOT ride:

A In the aisle
B In areas not designed for passengers (e.g., baggage area)
C In the rear seats
D In the front seats

Correct answer: B

Riders must be in passenger seats; aisles, baggage areas, and other non-passenger spots are restricted.

Question 17 of 25

When a passenger asks to be let off between scheduled stops:

A Discharge them only at a safe location and as company policy allows
B Refuse no matter what
C Speed to the destination
D Always agree immediately

Correct answer: A

Discharge should be at a safe location consistent with company policy.

Question 18 of 25

After an emergency, the bus driver must:

A Account for every passenger and verify no one is left aboard
B Drive away
C Resume the route
D Wait for police

Correct answer: A

Confirm everyone is safely off the bus before any other action.

Question 19 of 25

A bus driver must do a post-trip inspection that includes:

A Removing the seats
B Refueling
C Walking the bus to check for sleeping or remaining passengers and items left behind
D Cleaning the windshield

Correct answer: C

Post-trip walk-through prevents passengers from being left aboard, especially children.

Question 20 of 25

A bus driver should know the location of:

A Fuel gauge only
B Bus depot phone
C Passenger seat numbers only
D Emergency exits, fire extinguishers, first-aid kits, and reflective triangles

Correct answer: D

Knowing emergency equipment locations is essential to fast response.

Question 21 of 25

A bus driver must:

A Keep the emergency exit areas clear
B All of the above
C Keep the front aisle clear of items
D Keep the doorway clear when in motion

Correct answer: B

All three areas must be clear for safety.

Question 22 of 25

Pre-trip inspection of a bus includes checking:

A All of the above
B Brakes, steering, exhaust, signaling devices
C Tires and wheels
D Emergency exits

Correct answer: A

Pre-trip is comprehensive: safety systems, emergency equipment, and structural items.

Question 23 of 25

When approaching a curve in a loaded bus:

A Slow down before entering the curve
B Maintain speed
C Increase speed
D Brake within the curve

Correct answer: A

Reduce speed before the curve; loaded buses have a high center of gravity.

Question 24 of 25

When evacuating a bus in an emergency, you should:

A Use the door away from the danger
B Open all windows first
C Wait for help to arrive
D Use the rear door for everyone

Correct answer: A

Evacuate from the door safest from the danger and account for every passenger.

Question 25 of 25

When passengers are loading or unloading at a stop, the bus must:

A Be moving slowly
B Be at a complete stop with the parking brake set or service brakes firmly applied
C Be in neutral with brakes off
D Be parked at any angle

Correct answer: B

Bus is fully stopped and braked while doors are open.

Study tips for the Missouri Passenger exam

The Passenger portion of the Missouri CDL exam is graded out of the bank of questions the Missouri Department of Revenue draws from each year. While the exact bank is not published, every question is sourced from the Passenger chapter of the Missouri 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 Missouri 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 Passenger.

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 Missouri Department of Revenue 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 Passenger 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 Missouri General Knowledge practice test before scheduling the real exam.

Next steps

Missed more than four questions? Re-read the Passenger study guide and the matching chapter in the official Missouri 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 Missouri Department of Revenue office.

Already comfortable with this endorsement? Drill another: MO General Knowledge · MO Air Brakes · MO Combination Vehicles · MO Hazardous Materials · MO School Bus · MO Tank Vehicle · MO Doubles / Triples

New to the CDL process in Missouri? Read How to apply for a CDL in Missouri for the document checklist and step-by-step timeline.