You have guard the profession, the object as in a guard rail, the verb as in to guard something. Many homonyms.
Depending on context, guard can be translated as follows:noun:WacheWächterWärterBewacherBewachungWachmannLeibwacheSchutzSchaffner (rail)verb:bewachenbeschützenschützen
Yes
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There are two safe ways to erect a scaffolding tower, which are advance guard rail system and 'through-the-trap' (3T). The advance guard rail system allows temporary guard rail units to be locked in place form the level below, while the 3T method ensures the operator is not standing on an unguarded platform.
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The purpose of a rail is to keep someone from falling. You can hold onto the rail while walking up and down the stairs.
There really is not a difference. A guard rail has a handrail on it so they are really the same thing. All staircases must be designed to fit any guard-rail type building code. No spaces greater than 4 inches and no less than 36 inches tall. Source: http://www.stairpartsblog.com
It's a guard rail warning sign
Yes, as long as your sight you put on it are made for that rail style.
It would be covered as a collision claim not a comprehensive claim. IE; you "collided" with a guard rail.