Invisible wrote:
> scott wrote:
> 
>> Locks can be designed to be opened by two different keys (usually a 
>> unique key and a master key common to several locks).
> 
> Really? Hmm... sounds physically implausible to me, but OK.
> 
The keys in my hospital have at least three levels.
I can open my door. There is a master for the floor and there is one 
that opens all doors (and possibly even a level in between). I think you 
can also have more than one master per lock. Then if more than one 
department is on one floor, each department can have a master key and 
the cleaners have one for the floor. Also if the department is split on 
two floors...
And they are all mechanical. The master keys have one extra groove, I 
don't know about the general master.

Post a reply to this message