Construction Site Signs - Do You Know Them?

As we are a good way through the construction site health and safety we thought this might be a good time to throw a few signs here. All workers on a construction site need to know these signs to make sure they are following processes and reduce the risk of an accident that might result in a personal injury claim.

Can you identify all of them and where they would be located?

Sign 1.

Clue - Everyone can see this sign?

Answer to follow....