Which of the following is not considered a type of safety sign?

The correct answer is that an invitation sign is not considered a type of safety sign. Safety signs are specifically designed to convey messages related to safety and health in various environments, particularly in workplaces or public areas where hazards may exist.

Warning signs are used to alert individuals about potential hazards or unsafe conditions that may pose a risk. Caution signs indicate a need for caution in certain areas or situations, often where less severe threats exist. Instruction signs provide clear directives or procedures that must be followed to ensure safety and compliance with safety protocols.

In contrast, invitation signs focus on welcoming people or inviting them to an event or location, and they do not convey information related to safety or health risks. Since they serve a different purpose unrelated to safety warnings or instructions, they do not fit within the categories typically recognized as safety signs. This distinction emphasizes the primary role of safety signs in promoting awareness and reducing the risk of accidents or injuries.