How high should reflectors be mounted on vehicles requiring them?

The correct answer indicates that reflectors should be mounted at a height of 24 to 60 inches on vehicles. This height range is specified in regulations to ensure that reflectors are optimally positioned to enhance visibility for other drivers. When mounted within this range, reflectors can effectively reflect light from approaching vehicles, significantly improving the safety of vehicles that may be at rest on the side of the road or otherwise in a position where they need to be more visible.

This criterion is particularly important in various conditions, such as nighttime or during adverse weather, where visibility can be significantly reduced. The chosen height helps ensure that the reflectors are above the typical height of other vehicles, thus making them clearly visible to approaching traffic.

Other choices do not meet the standard requirements. For instance, heights below 24 inches might be too low for effective visibility, and those above 60 inches may place reflectors in a position where they are not easily seen by oncoming traffic, especially in certain driving environments.