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Exam Review

Key Facts: ME CDL School Bus Exam

21

Minimum age for a Maine school bus operator endorsement

29-A MRSA §2303

10 years

Look-back period for OUI convictions that bar a Maine school bus endorsement

29-A MRSA §2303

100 ft

Minimum distance before a stop at which Maine school buses must activate flashing lights

29-A MRSA §2308

$250

Minimum fine for a first offense of illegally passing a stopped Maine school bus

29-A MRSA §2308

80%

Passing score required on each CDL knowledge test

49 CFR 383.135

Maine's School Bus (S) knowledge test requires 80% to pass; the BMV does not publish its question count or time limit. Maine law requires applicants to be at least 21 with a year of licensed driving and no OUI conviction in 10 years. Key rules: danger zones up to 30 feet in front, flashing lights at least 100 feet before a stop, and railroad stops 15 to 50 feet from the nearest rail.

Sample ME CDL School Bus Practice Questions

Try these sample questions to review concepts for the ME CDL School Bus exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 208+ question experience with AI tutoring.

1Section 10.1.1 of the Maine CDL Manual describes the danger zone ahead of a school bus. How far forward can it reach, and which part is the most dangerous?
A.Up to 10 feet, all equally dangerous
B.As much as 30 feet, with the first 10 feet most dangerous
C.Up to 50 feet, with the last 10 feet most dangerous
D.Up to 100 feet, with the middle 50 feet most dangerous
Explanation: Section 10.1.1 says the danger zones may extend as much as 30 feet from the front bumper, with the first 10 feet being the most dangerous. The danger zone is where children are most at risk of being hit by another vehicle or by their own bus.
2Besides the area in front, how far does the danger zone extend from the sides and rear of a school bus?
A.3 feet from each side and 5 feet behind
B.5 feet from each side and 30 feet behind
C.20 feet from each side and none behind
D.10 feet from each side and 10 feet behind
Explanation: Section 10.1.1 says the danger zones extend 10 feet from the left and right sides of the bus and 10 feet behind the rear bumper, in addition to as much as 30 feet in front. The area to the left of the bus is always considered dangerous because of passing cars.
3Section 10.1.1 gives the danger zones set distances around the bus, but treats one area as dangerous no matter how far it extends. Which area, and why?
A.The area to the left of the bus, because of passing cars
B.The area to the right of the bus, where students wait at the curb
C.The area behind the bus, where the rear emergency door opens
D.The area ahead of the bus, which the hood hides from your view
Explanation: Section 10.1.1 sets the danger zones at up to 30 feet in front of the bumper, 10 feet from each side, and 10 feet behind the rear bumper. In addition, the area to the left of the bus is always considered dangerous because of passing cars, and students who cross the road have to pass through it.
4Properly adjusted outside flat mirrors on a school bus should let you see how far behind the bus?
A.50 feet, or about one bus length
B.100 feet, or about two bus lengths
C.200 feet, or about four bus lengths
D.400 feet, or about eight bus lengths
Explanation: Per Section 10.1.3, set each outside flat mirror so it shows the road 200 feet (about 4 bus lengths) behind the bus, the side of the bus, and the rear tires where they touch the ground.
5How far can the blind spot directly behind a school bus extend, according to the manual's mirror section?
A.About 10 to 20 feet behind the bumper
B.No more than 25 feet on any bus
C.Exactly 200 feet on every bus
D.50 to 150 feet, possibly up to 400 feet
Explanation: Section 10.1.3 says the blind spot behind the bus extends 50 to 150 feet and could extend up to 400 feet depending on the length and width of the bus. You must use the outside mirrors to watch traffic entering that area.
6During your pre-trip, you adjust the outside convex mirrors. What should they show when correctly positioned?
A.The front bumper area and all the ground directly in front of the bus, from bumper to curb
B.The full side of the bus, the front of the rear tires, and at least one lane beside the bus
C.The road 200 feet behind the bus and the rear tires touching the ground on each side
D.All the students inside the bus, including the heads of the students right behind you
Explanation: Section 10.1.4 says to position the convex mirrors to see the entire side of the bus up to the mirror mounts, the front of the rear tires touching the ground, and at least one traffic lane on either side of the bus.
7What does the manual warn about the view in a school bus's convex mirrors?
A.They make people look larger and closer than they really are
B.They show only the area directly behind the bus
C.They do not accurately show the size and distance of people and objects
D.They can be used only when the bus is moving forward
Explanation: Section 10.1.4 says the convex mirrors present a view of people and objects that does not accurately reflect their size and distance from the bus. Section 2 adds that things appear smaller and farther away in a convex mirror than they really are.
8Your conventional school bus has a mirror on each front corner, angled down toward the bumper. According to Section 10.1.5, what are these crossover mirrors mainly for?
A.The area in front of the bumper you can't see directly
B.Traffic approaching from 200 feet behind the bus on either side
C.Students seated in the back rows and the rear emergency door
D.Overhead wires and tree branches when turning at intersections
Explanation: Section 10.1.5 says crossover mirrors, mounted on the left and right front corners, are used to see the front bumper danger zone that is not visible by direct vision, and the danger zones to the left side and the right side of the bus, including the service door and front wheel area.
9When the crossover mirrors are properly adjusted, which of these should you be able to see?
A.The rear tires touching the ground and the road 200 feet behind the bus
B.At least one full traffic lane on each side of the bus, out to the mirror mounts
C.The top of the rear window and the heads of all students right behind you
D.Both front tires on the ground and the area from the bumper to the service door
Explanation: Section 10.1.5 says the crossover mirrors should show the entire area in front of the bus from the bumper at ground level to where direct vision is possible, the right and left front tires touching the ground, and the area from the front of the bus to the service door.
10For the area in front of the bus, how should the crossover mirror view relate to what you can see directly through the windshield?
A.There should be a gap between them so the two views don't confuse you
B.Direct vision and the mirror view should overlap
C.The mirror should show only the area beyond 30 feet ahead
D.Direct vision no longer matters once the crossover mirrors are adjusted
Explanation: Section 10.1.5 says the crossover mirrors should show the area in front of the bus from the bumper at ground level to a point where direct vision is possible, and that direct vision and mirror view should overlap, so no part of the front danger zone is hidden.

About the ME CDL School Bus Exam

The Maine CDL School Bus Endorsement Test is the knowledge test for the S endorsement needed to drive a school bus designed to transport more than 15 passengers including the driver; qualifying also earns the Passenger (P) endorsement. Independent practice by OpenExamPrep covers Section 10 of the Maine CDL Manual, passenger material from Section 4, the school bus items in the Section 11 Vehicle Inspection, and Maine school bus law in Title 29-A. These multiple-choice questions are a study aid; they do not replace the skills test and driving demonstration in a school bus.

Exam sponsor: Maine Department of the Secretary of State, Bureau of Motor Vehicles (BMV). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Maine's school bus operator examination has three phases: a multiple-choice knowledge test, a skills test, and an actual driving demonstration in the type of bus you will drive. The skills test includes the pre-trip vehicle inspection (the new Vehicle Inspection standard applies from November 1, 2026) and the Class B basic control maneuvers with a bus turnaround in place of the alley dock.

Time Limit

Not published by Maine BMV

Passing Score

80% on each CDL knowledge test

Exam / Certification Fees

$20 with the initial school bus endorsement application and $20 for a subsequent examination (29-A MRSA §2303); the Class A, B, or C CDL examination is $70 (Maine BMV fee table)

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Manual Section 10.1 (official weight not published)

Danger Zones and Mirrors

The 30-foot front and 10-foot side and rear danger zones, and adjusting and using flat, convex, crossover, and inside mirrors.

Manual Section 10.2 (official weight not published)

Loading and Unloading

Approaching and securing the stop, loading and unloading on the route and at school, students who cross the road, dropped objects, handrail hang-ups, and post-trip checks.

Manual Section 10.3 (official weight not published)

Emergency Exit and Evacuation

When evacuation is mandatory, safe places (100 feet off the road, 300 feet upwind for hazmat), tornado procedures, securing the bus, and calling for help.

Manual Section 10.4 and 29-A MRSA §2306 (official weight not published)

Railroad-Highway Crossings

Passive and active crossings, stop lines and crossbucks, stopping 15 to 50 feet from the nearest rail, multiple tracks, gates, stalled buses, and containment space.

Manual Section 10.5 (official weight not published)

Student Management

Handling behavior problems away from loading zones, where students may be put off the bus, and calling for help.

Manual Sections 10.6 and 10.7 (official weight not published)

ABS and Special Safety Considerations

ABS requirements and limits, strobe lights, high winds, backing rules, and tail swing.

Manual Sections 11.2 and 11.3 (official weight not published)

School Bus Vehicle Inspection

Student lights, stop arm and safety (crossing) arm, first aid and body fluid cleanup kits, and crossover mirrors.

29-A MRSA §§2302-2308 and 2452, Maine CDL Manual introduction (official weight not published)

Maine School Bus Laws and Licensing

Operator requirements, OUI penalties, flashing lights 100 feet before a stop and their permitted use, passing penalties, crossing arms, non-school use, seating capacity, seat belts, the ban on standing passengers, fire extinguishers, license classes, and the school bus permit.

Manual Section 4; Maine builds the passenger endorsement into the school bus knowledge test (official weight not published)

Passenger Transport Safety

Riders carrying hazards such as car batteries or gasoline, checking the interior of an unattended bus, posted curve speeds, drawbridge stops, and fueling with riders aboard.

Preparing for the ME CDL School Bus Exam

What You Need to Know

  • Passing score: 80% on each CDL knowledge test
  • Assessment: Maine's school bus operator examination has three phases: a multiple-choice knowledge test, a skills test, and an actual driving demonstration in the type of bus you will drive. The skills test includes the pre-trip vehicle inspection (the new Vehicle Inspection standard applies from November 1, 2026) and the Class B basic control maneuvers with a bus turnaround in place of the alley dock.
  • Time limit: Not published by Maine BMV
  • Exam / certification fees: $20 with the initial school bus endorsement application and $20 for a subsequent examination (29-A MRSA §2303); the Class A, B, or C CDL examination is $70 (Maine BMV fee table) Official sources

Using Our Practice Resources

  • Work through all 208 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

ME CDL School Bus: Suggested Study Strategy

1Learn every mirror's target view: flat mirrors 200 feet behind, convex mirrors the whole side and one lane, crossover mirrors both front tires and the area to the service door, and the inside mirror every student's head.
2Rehearse the stop sequence in order: amber lights well before the stop (Maine law says at least 100 feet), stop 10 feet from students, secure the bus, red lights and stop arm, then check that traffic has stopped before opening the door.
3Know Maine's school bus statutes: 29-A §2303 (age 21, one year licensed, no OUI in 10 years), §2306 (rail stops 15 to 50 feet, at least 2-year revocation), and §2308 (passing penalties).
4Memorize the evacuation distances: at least 100 feet off the road toward oncoming traffic, and at least 300 feet upwind for a hazardous materials spill.

Frequently Asked Questions

How many questions are on the Maine CDL School Bus test?

Maine BMV does not publish a question count or time limit for the School Bus knowledge test. Federal rules require at least 80% correct on each CDL knowledge test.

What are the requirements for a Maine school bus operator endorsement?

Under 29-A MRSA §2303, you must hold a valid license for the vehicle class, be at least 21, have held a license and driven as a licensed operator for at least one year, pass an exam in the type of bus you will drive, have no OUI conviction in the past 10 years, and have no habitual-offender revocation in the past 6 years. You must also pass an annual physical, paid for by the employer.

Do I also need the Passenger endorsement to drive a school bus in Maine?

Yes, for buses designed for more than 15 passengers. Maine builds the passenger endorsement into the school bus knowledge test, and qualifying for the S endorsement also earns the P endorsement without an additional fee or examination.

Which license class do I need for a Maine school bus?

The Maine CDL Manual says a bus with a GVWR of 26,001 pounds or more needs a Class B CDL; a bus of 26,000 pounds or less designed for more than 15 passengers needs a Class C CDL; and a bus of 26,000 pounds or less designed for 15 or fewer passengers can be driven with the "3" endorsement on a regular license.

How much does the Maine school bus endorsement cost?

29-A MRSA §2303 sets a $20 fee with the initial application and $20 for a subsequent examination. The Maine BMV fee table also lists $70 for the Class A, B, or C CDL examination and $34 for a 5-year commercial license under age 65.

What happens to a Maine school bus endorsement after an OUI?

Under 29-A MRSA §2452, an OUI conviction while operating a school bus brings permanent revocation. A first OUI conviction otherwise brings a suspension of at least 3 years, and a second within 10 years at least 6 years.

Can I use an interpreter on the Maine school bus test?

No. Maine's CDL Manual says federal regulations prohibit interpreters on CDL knowledge exams, and federal rules require CDL skills tests to be conducted in English. Maine does not publish which languages its CDL knowledge tests are offered in. This practice bank is written in English.