Wisconsin School Bus CDL Practice Test

This is a free 20-question practice test for the School Bus portion of the Wisconsin Commercial Driver's License knowledge exam. Questions are pulled from a pool of 55 drawn from the AAMVA CDL Manual, which is the source document the Wisconsin Division of Motor Vehicles uses to write its actual exam.

How it works: Click an answer. The correct choice highlights in green, and you'll see a short explanation. Aim for 85% or better before you sit for the real test in Wisconsin.

Question 1 of 20

Before resuming travel after a stop, the driver should:

Mirror-check, count students, verify all are clear of the danger zone, deactivate the lights, then proceed slowly
Drive immediately
Only check the rear
Skip the count

Correct. Mirror sweep, count crossing students, verify clear danger zone, deactivate lights and stop arm, proceed slowly.

Question 2 of 20

When approaching the bus stop, you should activate the alternating amber warning lights:

About 200 feet in advance (more in 50+ mph zones)
At the stop
After unloading
Only at night

Correct. Activate amber warning lights about 200 feet before the stop (further in higher-speed zones), giving traffic time to slow.

Question 3 of 20

The "danger zone" around a school bus is generally:

10 feet in front, on each side, and behind the bus, plus any area required for the bus to maneuver
Only behind the bus
Only in front
5 feet on each side

Correct. The danger zone extends 10 feet in front, 10 feet on each side, and 10 feet behind the bus, plus the area needed to maneuver. Most students killed by their own bus are in this zone.

Question 4 of 20

When stopped to load or unload students, the bus driver should:

Set parking brake, place transmission in neutral, activate red lights and stop arm, count students, watch mirrors
Just open the door
Only honk the horn
Skip the parking brake

Correct. Standard procedure: parking brake set, neutral, red flashers and stop arm out, count students on/off, mirror check before resuming.

Question 5 of 20

Most school-bus fatalities of students happen:

Inside the bus
Outside the bus, in the danger zone, particularly during loading and unloading
In another vehicle
At the school

Correct. The majority of student deaths involving school buses occur outside the bus, often in the danger zone right after unloading.

Question 6 of 20

When evacuating students, they should be moved to a safe area:

At least 100 feet off the roadway in the direction of oncoming traffic, away from the bus
Right next to the bus
Across the road
Anywhere

Correct. Move students at least 100 feet away, off the roadway, in the direction of oncoming traffic so they can see and be seen by approaching drivers.

Question 7 of 20

After unloading at the end of the route, the driver must:

Walk through the bus to check for sleeping or hiding students, lost items, damage
Skip the walkthrough
Lock and leave
Only check the front

Correct. Always walk every aisle and check every seat. Sleeping children left aboard a parked bus is a recurring tragedy that the post-trip walk prevents.

Question 8 of 20

When you change a flat tire en route with students aboard:

Move students to a safe location off the bus and away from the road
Have them stay aboard
Have them help
Have them stand near the tire

Correct. Move students to safety off the road during any tire change or breakdown. Risk of being struck or jack failure.

Question 9 of 20

When the bus must stop because of crossing students, you should also:

Use the crossing-control arm (if equipped), signaling students to walk far enough in front of the bus to be seen
Skip the crossing arm
Have them walk behind
Have them run

Correct. The crossing-control arm extends in front of the bus, forcing students to walk where the driver can see them.

Question 10 of 20

Pre-trip inspection should also verify:

All emergency equipment is present and functional, including the body-fluid clean-up kit
Only the lights
Only the brakes
Skip equipment check

Correct. Body-fluid clean-up kit, fire extinguisher, first-aid kit, three reflective triangles, and other emergency equipment must be present and functional.

Question 11 of 20

When stopped at a railroad crossing in a school bus, the driver should:

Open the entrance door and driver window, look and listen for trains
Skip the door
Only honk
Drive across without stopping

Correct. Open door and window, eliminate noise from the bus, look both ways, listen for whistles and bells. Cross only when clear.

Question 12 of 20

When you encounter a railroad crossing without warning devices on a low-traffic spur:

Some states permit no-stop with conditions; verify the bus operator's policy
Skip stop always
Drive across without looking
Only if police direct

Correct. Limited exceptions exist for industrial spurs and abandoned tracks. Always verify and prefer to stop when in doubt.

Question 13 of 20

A school bus stop in low-light or poor-visibility conditions:

Activate flashers earlier, use additional lights if equipped, allow extra time for traffic to react
Skip flashers
Move quickly
Drive past

Correct. Reduced visibility means earlier flashers, more conspicuous stop, more time for traffic to react.

Question 14 of 20

When a bus is in motion, students must:

Remain seated, facing forward, not block the aisle
Stand
Move around
Sit on the floor

Correct. Seated, facing forward, hands and feet to themselves, aisle clear. This protects them in any sudden stop.

Question 15 of 20

The school bus driver's relationship with students:

Should be respectful, calm, professional; consistent rule enforcement helps maintain safety
Should be punitive
Should be casual
Should be nonexistent

Correct. Respectful, calm, consistent enforcement of safety rules builds the cooperative culture that makes route operation safer.

Question 16 of 20

Securing the bus at the end of the day:

Park in designated area, set parking brake, turn off engine and lights, secure all doors
Leave the engine running
Skip the parking brake
Leave doors unlocked

Correct. Standard end-of-day securement: parking, brake, engine off, lights off, doors secured. Walk through to ensure no children remain.

Question 17 of 20

The minimum distance the front bumper of a stopped school bus should be from waiting students at the stop:

At least 10 feet
As close as possible
At least 1 foot
At least 50 feet

Correct. Stop with the front bumper at least 10 feet from waiting students so they have to walk forward to enter the bus, ensuring the driver can see them.

Question 18 of 20

During the loading process, students should:

Wait at the bus stop until the bus has fully stopped and the door is opened
Approach while the bus is moving
Cross before the bus stops
Run to the bus

Correct. Students wait until the bus has fully stopped, the parking brake is set, the door is opened, and the driver signals before approaching.

Question 19 of 20

A school bus must have how many mirrors at minimum?

Standard side mirrors plus crossover mirrors that allow the driver to see the danger zone in front and on the right side
Just one
Just two
None

Correct. School buses have side mirrors plus crossover mirrors at the front so the driver can see the danger zone in front of the bus and on the right.

Question 20 of 20

When a school bus is on a divided highway with a barrier or median:

Some states allow vehicles on the opposite side not to stop when the bus is stopped — verify state law
Always require stop
Always require pass
Are not regulated

Correct. Most states exempt opposing traffic on divided highways with a physical barrier. Some require all traffic to stop. Know your state law.

About the Wisconsin School Bus exam

Most states administer 20 School Bus questions and require 80% to pass. The exam emphasizes loading and unloading procedures, the danger zone around the bus, emergency exit and evacuation procedures, railroad-highway crossings, and student management.

The Wisconsin Division of Motor Vehicles follows the federal CDL standards established by FMCSA. To earn the School Bus credential, you must answer at least 80% of the questions correctly. Many candidates score lower the first time because the test pulls from a large pool — refreshing this page will give you a different mix of questions, drawn from the same authoritative source.

Want more practice? Try the full School Bus question bank or browse all Wisconsin CDL practice tests.