ID · P Endorsement

Idaho Passenger CDL Practice Test

Below are 25 exam-style questions for the Idaho Passenger CDL knowledge test, modeled on the FMCSA-aligned content used by the Idaho Transportation Department Division 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.

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 may carry small-arms ammunition only:

A In any quantity
B In bulk only
C On freight trips 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 2 of 25

A bus driver must inspect the emergency exits:

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

Correct answer: A

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

Question 3 of 25

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

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

Correct answer: A

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

Question 4 of 25

When refueling a bus with passengers:

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

Correct answer: B

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

Question 5 of 25

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

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

Correct answer: C

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

Question 6 of 25

A bus driver must not permit:

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

Correct answer: B

All three are restricted on most passenger buses.

Question 7 of 25

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

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

Correct answer: B

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

Question 8 of 25

On a transit bus, standees must be:

A Anywhere on the bus
B Only in the aisle near the door
C Behind the standee line
D Not allowed

Correct answer: C

Standees stand behind the standee line on the floor, typically about 2 feet behind the driver.

Question 9 of 25

A bus driver should always:

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

Correct answer: C

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

Question 10 of 25

A bus carrying passengers must stop at railroad crossings:

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

Correct answer: A

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

Question 11 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 12 of 25

When approaching a bus stop, you should:

A Approach at full speed
B Stop in the middle of the lane
C Honk to warn passengers
D Brake smoothly and stop at the curb without abrupt stops

Correct answer: D

Smooth stops protect standing passengers from falls; stop with the door at the curb.

Question 13 of 25

When approaching a curve in a loaded bus:

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

Correct answer: C

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

Question 14 of 25

A bus making frequent stops in a city should:

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

Correct answer: D

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

Question 15 of 25

A bus driver involved in a crash must:

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

Correct answer: D

Standard emergency procedures and reporting apply.

Question 16 of 25

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

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

Correct answer: D

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

Question 17 of 25

Items prohibited from a bus include:

A Improperly packaged hazmat
B All of the above
C Items that block emergency exits
D Tear-gas canisters and other irritating materials

Correct answer: B

All three are restricted from passenger-carrying buses.

Question 18 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 19 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 20 of 25

A bus driver must:

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

Correct answer: A

All three areas must be clear for safety.

Question 21 of 25

An "intercity bus" usually:

A Allows standees
B Does not allow standees and is configured for longer trips
C Has a baggage section open to passengers
D Has no driver

Correct answer: B

Intercity (over-the-road) buses are seated only and configured for long trips.

Question 22 of 25

In a long downhill, a bus driver should:

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

Correct answer: C

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

Question 23 of 25

A bus driver may NOT operate a bus with:

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

Correct answer: C

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

Question 24 of 25

After an emergency, the bus driver must:

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

Correct answer: C

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

Question 25 of 25

A driver should never start moving until:

A All passengers have a seat or are properly braced behind the standee line
B The dispatcher says so
C The bus is empty
D The bus is full

Correct answer: A

Move only when passengers are seated or properly positioned for safety.

Study tips for the Idaho Passenger exam

The Passenger portion of the Idaho CDL exam is graded out of the bank of questions the Idaho Transportation Department Division of Motor Vehicles draws from each year. While the exact bank is not published, every question is sourced from the Passenger chapter of the Idaho 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 Idaho 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 Idaho Transportation Department Division 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 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 Idaho 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 Idaho 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 Idaho Transportation Department Division of Motor Vehicles office.

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

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