Final answer:
Flush bolts can be used when not part of the egress path to secure doors in non-egress situations.
Step-by-step explanation:
Flush bolts are commonly used in doors to secure them at the top or bottom of the frame.
While these bolts are often used as part of the egress path, they can also be used in non-egress situations, such as to secure a door that is not intended for regular use, like an emergency exit door.
In these cases, the flush bolts would be engaged to keep the door closed and locked.