Do fire exits have to open outwards?

This raises the question: Should fire exits be locked?

Fire exit doors should not be locked or fastened in such a way that they are difficult to open by anyone who might need them in an emergency. A key holder can use the door for non-emergency purposes at all times.

Also, when was the mandatory introduction of exit signs? European sign directive (92/58/EEC) of 24 June 1992 states that exit signs should be a green color to indicate safe places. The emergency lighting applications are also covered by BS EN 1838.1999 and BS 5266-7.1999. Exit signs in the USA can be either red or green, but they have always been red.

Also, do you know the difference between emergency exit and fire exit?

As we have seen in an earlier article, the distinction between exit and fire escape has been long debated. Signs indicating the exit that is only used in an emergency (usually with push bars or push pads) should be marked "Fire exit".

Are there emergency exits?

An "exit" in aircraft terms is any of the main doors (entry and service doors on each side of the aircraft) and an "emergency escape" is a door that is only used in an emergency (such overwing exits or permanently armed exits).