SD · P Endorsement

South Dakota Passenger CDL Practice Test

Below are 25 exam-style questions for the South Dakota Passenger CDL knowledge test, modeled on the FMCSA-aligned content used by the South Dakota Driver Licensing Program. 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 "kneeling" feature on a bus:

A Engages the parking brake
B Reduces fuel use
C Lowers the entry to make boarding easier for passengers
D Tilts the bus for cornering

Correct answer: C

Kneeling lowers the front of the bus to ease boarding; check that it raises again before driving.

Question 2 of 25

A bus driver who suspects a passenger is on the verge of a medical emergency should:

A Pull over safely, assess the situation, and call for help if needed
B Wait until the end of the trip
C Speed to the destination
D Continue to the next scheduled stop

Correct answer: A

Driver judgement is required; safety of the passenger comes before schedule.

Question 3 of 25

When a passenger appears intoxicated or threatening:

A Refuse boarding or, if onboard, put them off in a safe place
B Drive faster to the destination
C Turn the bus around
D Allow them to board to avoid conflict

Correct answer: A

A driver can refuse boarding to disruptive or impaired passengers and must do so when safety is at risk.

Question 4 of 25

Passengers may NOT ride:

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

Correct answer: C

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

Question 5 of 25

During night driving, a bus driver should:

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

Correct answer: B

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

Question 6 of 25

A driver must monitor for fatigue because:

A Federal HOS rules apply to passenger-carriers as well
B Even short trips can be tiring with frequent stops and passenger interactions
C Passengers depend on the driver's alertness
D All of the above

Correct answer: D

All three reasons apply to bus drivers.

Question 7 of 25

A bus driver involved in a crash must:

A Notify the carrier and applicable authorities, render aid, and follow company emergency procedures
B Wait for passengers to call
C Continue the trip
D Tell only the dispatcher

Correct answer: A

Standard emergency procedures and reporting apply.

Question 8 of 25

A bus driver must not permit:

A All of the above
B Disorderly conduct that endangers others
C Open alcohol on the bus
D Smoking on a bus where smoking is prohibited

Correct answer: A

All three are restricted on most passenger buses.

Question 9 of 25

A bus carrying passengers must stop at railroad crossings:

A Between 15 and 50 feet from the nearest rail
B Within 5 feet of the rail
C Only when a train is visible
D Never; just slow down

Correct answer: A

Federal rule requires buses to stop in the 15-50-foot zone, open the door, and listen.

Question 10 of 25

Hazardous materials in small amounts are sometimes allowed in a bus, but:

A Only certain types and quantities, kept in a designated, ventilated area
B Never
C In the cab only
D In bulk only

Correct answer: A

Small-quantity hazmat exceptions exist for buses, with strict limits on quantity and packaging.

Question 11 of 25

A bus passing through a tunnel marked "No hazardous materials":

A Must not carry placarded hazmat
B Can carry hazmat at off-peak times
C Can carry placarded hazmat anyway
D Can carry only Class 9 hazmat

Correct answer: A

Tunnel restrictions apply; rerouting is required.

Question 12 of 25

A bus driver may NOT operate a bus with:

A Working emergency exits
B An out-of-service brake or other safety defect
C A current medical card
D A pre-trip inspection completed

Correct answer: B

Out-of-service safety defects make any CMV — including a bus — illegal to operate.

Question 13 of 25

A bus may not be operated with:

A Brakes that do not pass the brake test
B All of the above
C Missing safety equipment
D Cracked windshield within the wiper area

Correct answer: B

All three create out-of-service conditions and bus cannot legally operate.

Question 14 of 25

A bus making frequent stops in a city should:

A Skip the four-way flashers
B Use mirrors to clear the area before pulling out
C Honk the horn at every stop
D Maintain speed in traffic

Correct answer: B

Stop-and-go traffic requires careful mirror checks before re-entering traffic.

Question 15 of 25

On a bus, all passengers must:

A Wear hard hats
B Be seated only at night
C Be seated or in standee positions, with no one in the doorway when bus is in motion
D Be standing

Correct answer: C

Doorway must be clear when bus is moving so emergency exit is unobstructed.

Question 16 of 25

When you see a child on or near the road, you should:

A Honk loudly
B Cover the brake and slow down
C Speed up
D Maintain speed

Correct answer: B

Children behave unpredictably; cover the brake and reduce speed.

Question 17 of 25

When evacuating a bus in an emergency, you should:

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

Correct answer: A

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

Question 18 of 25

When at a school zone or crosswalk, the bus driver must:

A Maintain speed
B Slow down and yield to pedestrians
C Move into the next lane
D Honk to warn them

Correct answer: B

Pedestrian safety is paramount; slow and yield as required by law.

Question 19 of 25

In a long downhill, a bus driver should:

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

Correct answer: C

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

Question 20 of 25

A bus may carry small-arms ammunition only:

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

Correct answer: D

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

Question 21 of 25

When you can't see clearly out the rear window:

A Drive only forward
B Tape over the mirrors
C Don't worry about it
D Use the side mirrors and add extra caution before backing or moving

Correct answer: D

Bus mirror systems are designed for limited rear vision; use them carefully.

Question 22 of 25

When approaching a curve in a loaded bus:

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

Correct answer: B

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

Question 23 of 25

After unloading at a stop:

A Honk and drive
B Watch all mirrors and the curb area before pulling away
C Pull away immediately
D Reverse to clear the curb

Correct answer: B

Many bus accidents happen at stops as people step into traffic or trip on departure.

Question 24 of 25

A bus driver who must handle a noisy or threatening situation should:

A Turn up the music to drown it out
B Ignore it
C Pull over to a safe place and address it
D Try to drive faster to end the trip

Correct answer: C

Pulling over allows the driver to manage the situation safely.

Question 25 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.

Study tips for the South Dakota Passenger exam

The Passenger portion of the South Dakota CDL exam is graded out of the bank of questions the South Dakota Driver Licensing Program draws from each year. While the exact bank is not published, every question is sourced from the Passenger chapter of the South Dakota 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 Dakota 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 South Dakota Driver Licensing Program 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 South Dakota 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 South Dakota 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 Dakota Driver Licensing Program office.

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

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