When driving a bus across railroad tracks, you:

The correct answer indicates that when driving a bus across railroad tracks, it's advisable to never change gears if your bus has a manual transmission. This is important because changing gears while crossing can cause the vehicle to stall, especially if the transmission is engaged incorrectly or if the driver is distracted. A stall can be particularly dangerous at railroad crossings due to the potential for oncoming trains, which can approach quickly and without warning.

When approaching railroad tracks, maintaining a steady speed without shifting gears helps ensure that the bus clears the crossing safely and swiftly. This practice keeps the vehicle under control and allows the driver to focus on the tracks and any signals that indicate the presence of a train. There are various safety protocols at railroad crossings, but the emphasis on maintaining gear stability while crossing is paramount for safety.

Other options may suggest actions that may not be as critical or universally applicable as the established protocol of avoiding gear changes during the crossing, which can lead to safety hazards.