Just for fun
Pneumatic nail guns use compressed air to fire nails. They are fast and efficient, but potentially dangerous if they're not used properly.
The four drawings below show a worker using a pneumatic nail gun. In three of the drawings he is firing a nail into a butt joint.
In the other one, he is freeing up a jammed nail with a screwdriver. But only one of these drawings shows a safe work practice.
The other examples are asking for trouble! See if you can select whether the activity is safe or not.
Activity | Is this safe or not? |
---|---|
Unsafe | |
Unsafe | |
Safe | |
Unsafe |