Hazards
A hazard is described as a danger or risk.
- Hazard signs are in a shape of a yellow triangle with a black silhouette in the middle.
- You can find these signs at pools, beaches, certain places at work, construction sites, etc.
- These signs tell us what should we be careful about.
Mandatory
Definition of Mandatory: required by law or mandate; compulsory.
A mandatory sign is described as a blue circle sign. the silhouette in the middle of the sign is white.
When you see a mandatory sign you should most likely notice it for your safety. The sign warns you that you should have or do a certain thing to make sure you are safe.
You can find this sign on the bus, streets, airport, workshop, construction site, etc.
Example:
this one means you need to fasten your seat belt. You can find this on a plane, or any type of vehicle.
Prohibited
Definition of Prohibited: Something that has been forbidden; banned.
A prohibited sign is a circle. In the sign, there is a red circle with a cross through it. the background is white with a black silhouette in the middle. You can find this sign at playgrounds, museums, pools, workshops, buses, airports, etc.
When you see this sign it means something is forbidden, for example, a playground, at the playground you will most likely find this sign nearby. This means that no dogs are allowed on the playground.