Construction Supervisor License Practice Exam

Safety instruction signs on a construction site are typically colored green with white letters. This color scheme is designed to convey a sense of safety and information, indicating that the sign provides essential information regarding safety instructions and actions that should be taken to ensure the well-being of everyone on site.

Green is universally recognized in safety contexts as a color that indicates a safe condition or an instruction that promotes safety, and the use of white letters improves visibility and readability, allowing workers to quickly understand the message being communicated.

The other options represent different types of signs or colors used for other specific purposes. For example, red is often associated with prohibitive measures or dangers, while black and yellow combinations are commonly used for hazard warnings. The notion of "All colors" could lead to confusion and inconsistency, undermining the importance of standardized safety signage protocols.