A driver assumes a bus cannot roll over on a curve because the pavement has good traction. Why is that unsafe?
Correct answer: A bus can roll over from excessive cornering speed without first sliding.
Grip can be sufficient for a bus to roll rather than slide when cornering too fast. Choose a suitable speed before the curve; a posted value is not a guarantee for the bus and conditions.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 4, 4.3.4 Speed on Curves; physical PDF page 61 (printed 61); reviewed September 14, 2026. ↗
A rider tries to board with a can of gasoline that has no hazard label. What should the bus driver do?
Correct answer: Prevent it from being brought aboard as ordinary carry-on baggage.
A missing label does not remove the hazard. The handbook specifically warns about passengers bringing common hazards such as gasoline or car batteries aboard.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 4, 4.2.1–4.2.2 Hazardous Materials; physical PDF page 60 (printed 60); reviewed September 14, 2026. ↗
You take over a school bus from a taller driver. What should happen before you operate it?
Correct answer: Check and adjust each mirror for your own seated view.
Mirror coverage depends on the driver's position. Check all mirrors before operation and have any inadequate view corrected.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.1.2, physical PDF page 108. Reviewed September 14, 2026. ↗
What should properly adjusted outside flat mirrors show on a school bus?
Correct answer: Bus sides, rear tires at ground level and traffic behind.
Flat mirrors help monitor side clearances and rear traffic. They do not remove the close-in blind spots in front of or behind the bus.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.1.3, physical PDF page 108. Reviewed September 14, 2026. ↗
During a mirror check, which view belongs in the outside convex mirrors?
Correct answer: The bus sides and at least one adjacent lane on each side.
The handbook calls for side coverage up to the mirror mounts, the front of the rear tires touching the ground, and an adjacent lane on each side.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.1.4, physical PDF page 109. Reviewed September 14, 2026. ↗
How should crossover-mirror coverage meet the area you can see directly ahead?
Correct answer: The mirror view and direct view should overlap.
Overlapping views help avoid an unseen gap in the front danger zone. Proper adjustment includes the front bumper area at ground level and the front tires.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.1.5, physical PDF page 109. Reviewed September 14, 2026. ↗
Can the overhead inside mirror replace exterior checks before you leave a student stop?
Correct answer: No; it primarily monitors the passenger compartment.
The interior mirror is mainly for observing students. Its limited rear view and blind spots do not replace the exterior mirror checks for traffic and children.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.1.6, physical PDF page 110. Reviewed September 14, 2026. ↗
As you slow for a student stop, when should you check for children and traffic?
Correct answer: Before, during and after bringing the bus to a stop.
Approach cautiously while repeatedly scanning pedestrians, traffic and the mirrors. A situation can change while the bus is slowing or stopped.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.2.1, physical PDF page 110. Reviewed September 14, 2026. ↗
The red loading lights are flashing. What must you confirm before fully opening the door and signaling children to approach?
Correct answer: Traffic has actually stopped.
Warning lamps and the stop arm do not physically stop a motorist. Make the final traffic check before inviting children toward the bus.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.2.1, physical PDF page 110. Reviewed September 14, 2026. ↗
How should students board after you give the signal?
Correct answer: Slowly, single file, using the handrail.
Orderly, single-file boarding with the handrail reduces falls and lets you observe each student. Use the dome light when darkness makes the steps harder to see.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.2.2, physical PDF page 111. Reviewed September 14, 2026. ↗
Everyone you first saw at the stop is seated. Why check the mirrors again before departure?
Correct answer: A late-arriving child may now be approaching the bus.
Children may run toward a bus after the original group boards. Make the final exterior checks before returning safely to traffic.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.2.2, physical PDF page 111. Reviewed September 14, 2026. ↗
At a drop-off stop, when should students leave their seats?
Correct answer: After the driver tells them to unload.
Students stay seated until the driver releases them to unload. The driver counts them off and verifies that each has moved to a safe, visible position.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.2.3, physical PDF page 111. Reviewed September 14, 2026. ↗
Why watch a student's clothing and backpack while the student steps off?
Correct answer: They can catch on the handrail or door area.
Loose straps or clothing can snag during exit. Watch each student clear the doorway and reach a safe location before departure.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.2.5, physical PDF page 112. Reviewed September 14, 2026. ↗
A student has crossed in front of the bus to its left edge. What comes next?
Correct answer: Stop, check traffic and confirm it is safe to continue.
The bus can hide approaching traffic. At its left edge the student makes another traffic check and follows the driver's crossing signal before continuing.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.2.3, physical PDF page 111. Reviewed September 14, 2026. ↗
You have driven past a student's assigned stop. What should you do?
Correct answer: Follow the authorized missed-stop procedure without backing to it.
The handbook directs drivers not to back after missing a stop. Follow local procedures to arrange a safe, authorized drop-off.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.2.3, physical PDF page 111. Reviewed September 14, 2026. ↗
The bus is stopped after an incident, with no immediate danger inside. How should evacuation be decided?
Correct answer: Compare the danger of staying aboard with the danger outside.
Evacuation can expose children to moving traffic and other hazards. Assess the emergency and evacuate when staying aboard is more dangerous; do not delay when an immediate threat requires exit.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.3.1, physical PDF page 112. Reviewed September 14, 2026. ↗
Smoke and fire threaten the bus's occupied passenger area. What should you do first?
Correct answer: Evacuate the students to a safe place.
Fire or a serious threat of fire requires evacuation. Protect passengers and obtain emergency help; a practice question is not training to fight a bus fire.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.3.1, physical PDF page 113. Reviewed September 14, 2026. ↗
The normal entrance is unsafe to use during an evacuation. What should guide your choice of another exit?
Correct answer: The hazard location and the safest usable exit.
Choose the front, rear, both, side, window or roof exits according to the emergency and their usability. Do not direct students through the hazard merely to use the usual entrance.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.3.2, physical PDF page 113. Reviewed September 14, 2026. ↗
Why teach emergency-exit procedures to all students, even when trained student helpers are assigned?
Correct answer: The assigned helpers may be absent when an emergency occurs.
Assigned helpers are useful, but every student needs basic evacuation knowledge. Planning must account for an emergency on a day when those helpers are not riding.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.3.2, physical PDF page 113. Reviewed September 14, 2026. ↗
Once students have reached the evacuation meeting place, what must the driver establish?
Correct answer: That all students are accounted for and any injuries are identified.
Keep students together at the safe meeting location, account for everyone and check their condition. Communicate with dispatch and responders rather than allowing students to wander back.
Source: Colorado Commercial Driver License Manual (06/15/23), Section 10.3.2, physical PDF page 113. Reviewed September 14, 2026. ↗
