MASTER KEYED PADLOCKS
Each padlock will open
with the two keys supplied, and will also open with a master key and a
grand master key. For example, 30 padlocks are ordered for the electrical
department of a factory, 20 locks are ordered for the pipefitting department,
and 12 locks are ordered for the maintenance department. Each employee
is given a padlock with a pair of keys that only open his or her padlock.
The electrical foreman has a
master key that will open all 30 of the electricians'
padlocks (but not the pipefitter or maintenance locks). The pipefitter
foreman has a
master key that will open all 20 of the pipefitters' locks
(but not the electrical or maintenance locks). The maintenance foreman
has a master key that will open all of the maintenance padlocks (but not
the electrical or pipefitter locks). The plant supervisor has a grand master
key that will open all of the locks in the electrical, pipefitting and