Missouri CDL School Bus Practice Test (MO) 2026

4.9 out of 5 (54 votes)
80% Passing score
20 Questions
4 Mistakes allowed
We understand the importance of thorough preparation for your commercial driver's license, especially when it comes to the school bus endorsement. Our Missouri permit test practice offers a comprehensive mix of questions essential for mastering the requirements of the Missouri CDL school bus test. By focusing on safety procedures, pre-trip inspections, basic control skills, and on-road driving, our practice permit test ensures you are well-prepared for the real test. Each Missouri permit practice test includes 20 multiple-choice questions, with a passing score of at least 16 correct answers. This rigorous structure equips you with the confidence and knowledge needed to tackle the actual permit test successfully. One of the key highlights of the CDL school bus practice test is its attention to the distinctive safety features of school buses, including their high visibility design in National School Bus Glossy Yellow. These features make school buses unique and easily recognizable on the road, which is crucial for maintaining the safety of students. To further enhance your preparation, we recommend supplementing the Missouri drivers license practice test with additional study materials. The drivers handbook, state-certified drivers ed courses, flashcards, and road sign charts are invaluable resources that target all areas of the DMV permit test. These materials, combined with our Missouri school bus endorsement test, provide a well-rounded study approach. Visual learning aids are also a significant part of our DMV practice test. Many sample permit test questions include images to help you understand the scenarios better, which can be particularly beneficial for visual learners. By integrating these aids, we ensure that learners grasp the concepts more effectively. Our MO CDL school bus test is regularly updated to reflect the most current driving laws and regulations, ensuring that you are studying the most relevant information. Updated for 2026, this school bus practice test keeps you in line with the latest requirements and changes, making your preparation as up-to-date as possible.
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Sample Missouri School Bus Test Questions

Question 1

Which situation requires the driver to evacuate a school bus?

  1. A The ABS malfunction lamp remains illuminated
  2. B The bus stalls on a railroad track, although no train is visible
  3. C The bus stops on a highway shoulder and the passenger compartment becomes warm
  4. D Every situation listed above

Correct answer: B – The bus stalls on a railroad track, although no train is visible

The Missouri CDL manual identifies a bus stalled on or adjacent to a railroad-highway crossing as a mandatory evacuation situation. The requirement does not depend on whether a train is currently visible. Other mandatory situations include fire or threatened fire, imminent collision, and a hazardous-materials spill requiring rapid evacuation.

Source: Missouri Commercial Driver License Manual — § 10.3.1, “Planning for Emergencies”

Question 2

A properly positioned overhead inside rearview mirror should show which area?

  1. A Every student, including the heads of those seated directly behind the driver
  2. B The top of the rear window at the bottom of the mirror
  3. C Traffic at least 400 feet behind the bus
  4. D All of these areas

Correct answer: A – Every student, including the heads of those seated directly behind the driver

The overhead inside mirror should show all students, including the heads of students sitting immediately behind the driver. The top of the rear window should appear at the top—not the bottom—of the mirror. Exterior side mirrors must be used to monitor traffic and the large blind area behind the bus.

Source: Missouri Commercial Driver License Manual — § 10.1.6, “Overhead Inside Rearview Mirror”

Question 3

After all students are seated and accounted for, which action belongs in the procedure for leaving the bus stop?

  1. A Close the entrance door and turn off the alternating flashing red lights
  2. B Leave the entrance door open until the bus enters the traffic lane
  3. C Release the parking brake while keeping the transmission in Park
  4. D Direct students to stand in the aisle

Correct answer: A – Close the entrance door and turn off the alternating flashing red lights

Once students are seated and everyone is accounted for, the driver prepares to leave by closing the door, engaging the transmission, releasing the parking brake, and turning off the alternating red lights. The driver should then signal, check all mirrors again, and allow congested traffic to clear. The bus may move only when it is safe to enter traffic.

Source: Missouri Commercial Driver License Manual — § 10.2.2, “Loading Procedures”

Question 4

When a Missouri school bus is caught in high winds, what should the driver do?

  1. A Increase speed to pass through the windy area sooner
  2. B Maintain a speed of exactly 10 mph
  3. C Remain on the roadway instead of stopping to wait
  4. D Hold the steering wheel firmly and anticipate gusts

Correct answer: D – Hold the steering wheel firmly and anticipate gusts

Strong winds can push a school bus sideways and may even force it off the roadway or cause it to tip. Keep a firm grip on the steering wheel and anticipate sudden gusts. Reduce speed to lessen the wind's effect, or pull off the roadway and wait when conditions require it. Contact the dispatcher for additional instructions.

Source: Missouri Commercial Driver License Manual — § 10.7.2, “Driving in High Winds”

Question 5

What should the school bus driver use when students are boarding in darkness?

  1. A Only the four-way hazard flashers
  2. B The interior dome light
  3. C A handheld flashlight while remaining behind the wheel
  4. D Light from the students' mobile phones

Correct answer: B – The interior dome light

The dome light should be illuminated while students board the bus in the dark. Students should enter slowly in a single file and use the handrail. The driver must continue monitoring all mirrors and wait until the students are seated and facing forward before moving the bus.

Source: Missouri Commercial Driver License Manual — § 10.2.2, “Loading Procedures”

Question 6

True or false: When crossover mirrors are adjusted correctly, the service-door area should be outside their field of view.

  1. A False
  2. B True

Correct answer: A – False

Properly adjusted crossover mirrors must show the danger-zone areas directly in front of and beside the bus. Their field of view should include the front wheel areas and the area extending from the front of the bus to the service door. These mirrors help the driver locate children or objects that cannot be seen directly.

Source: Missouri Commercial Driver License Manual — § 10.1.5, “Outside Left and Right Side Crossover Mirrors”

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