A child is close to the front bumper below the driver’s direct view. Which school-bus mirrors are specifically intended to help check this danger zone?
Correct answer: The correctly adjusted front crossover mirrors.
Crossover mirrors show areas immediately in front of the bus and near the front wheels and service door. Use all mirrors in a systematic check; no single mirror covers every danger zone.
Source: Iowa DOT-hosted CDL Manual, Hy-Brid October 2023; section text Version July 2017 (older source, not verified as current catalog edition). 10.1.5 Outside Left and Right Side Crossover Mirrors; printed 10-2, physical PDF page 128; reader lines 10044–10069. ↗
After stopping a school bus at a railroad crossing, how can you improve the check for an approaching train?
Correct answer: Silence passengers and noisy equipment, open the service door and driver’s window, and look and listen.
The manual recommends reducing noise and opening the service door and driver's window to look and listen. Follow applicable state and local school-bus procedures as well; inactive warning lights do not prove the tracks are clear.
Source: Iowa DOT-hosted CDL Manual, Hy-Brid October 2023; section text Version July 2017 (older source, not verified as current catalog edition). 10.4.3 Recommended Procedures, At the Crossing; printed 10-9, physical PDF page 135; reader lines 10551–10561. ↗
A school bus stalls on the tracks and a train is approaching. What direction should evacuated students move?
Correct answer: Away from the tracks and toward the approaching train, at an angle away from the bus.
Get everyone out and clear immediately. Moving away from the tracks toward the approaching train helps avoid the likely path of debris if the train hits the bus.
Source: Iowa DOT-hosted CDL Manual, Hy-Brid October 2023; section text Version July 2017 (older source, not verified as current catalog edition). 10.4.4 Special Situations, Bus Stalls or Trapped on Tracks; printed 10-9, physical PDF page 135; reader lines 10574–10579. ↗
At an approved drop-off maneuver, backing is unavoidable and no safer option exists. Should students get off before or after the bus backs?
Correct answer: After backing, so students are not outside the bus during the maneuver.
Avoid backing wherever possible. If it is unavoidable, follow the lookout and inspection procedures and never back while students are outside; at a drop-off, back before unloading.
Source: Iowa DOT-hosted CDL Manual, Hy-Brid October 2023; section text Version July 2017 (older source, not verified as current catalog edition). 10.7.3 Backing; printed 10-11, physical PDF page 137; reader lines 10751–10777. ↗
A school bus is parked close to a roadside object. As the driver steers away, why must the rear overhang be watched in the mirrors?
Correct answer: The tail can swing toward nearby objects on the side opposite the turn.
A bus’s rear overhang can swing outward as it turns. Check mirrors before and during the turn to protect the clearance beside the rear of the bus.
Source: Iowa DOT-hosted CDL Manual, Hy-Brid October 2023; section text Version July 2017 (older source, not verified as current catalog edition). 10.7.4 Tail Swing; printed 10-11, physical PDF page 137; reader lines 10778–10781. ↗
Strong gusts are pushing a school bus sideways. What is the manual’s recommended response?
Correct answer: Hold the wheel firmly, reduce speed, and stop safely off the roadway if necessary while coordinating with dispatch.
The broad side of a bus can catch strong winds. Anticipate gusts, slow down, and wait safely if conditions cannot be managed.
Source: Iowa DOT-hosted CDL Manual, Hy-Brid October 2023; section text Version July 2017 (older source, not verified as current catalog edition). 10.7.2 Driving in High Winds; printed 10-11, physical PDF page 137; reader lines 10738–10750. ↗
