Maryland Motor Vehicle Administration (MVA) Permit Practice Test

A yellow diamond-shaped sign is a well-recognized symbol on the road, indicating a warning. These signs are used to alert drivers to potential hazards or changes in road conditions that may require caution. This type of sign helps prepare drivers for situations like sharp curves, intersections, or the possibility of merging traffic. The bright yellow color and diamond shape are specifically designed to attract attention and convey important safety messages quickly to ensure that drivers adjust their behavior appropriately.

In contrast, other choices like stop signs and yield signs are typically octagonal and triangular, respectively, and are designed to convey directive actions rather than warnings. Speed limit signs, on the other hand, are rectangular and provide information about the maximum speed allowed in a given area rather than a warning about potential hazards. Thus, the yellow diamond shape is a distinct and recognized feature used exclusively for warning signs on the road.