What types of keys are typically found in a Knox-Box?

The Knox-Box is a secure key storage system used by emergency responders to gain access to a building during an emergency. It is designed to contain a variety of operational keys that are essential for accessing different areas of a facility quickly and efficiently. The correct answer indicates that the Knox-Box typically houses all operational keys, which include not only main entrance and grand master keys but also keys for specific equipment such as elevator controls and fire alarm panels.

Having a complete set of operational keys within the Knox-Box allows fire department personnel and other emergency responders to quickly access critical areas of the building without having to waste time searching for keys or waiting for someone with a key to arrive on the scene. This comprehensive access enables a faster and more effective response during emergencies, which can be crucial in saving lives and minimizing property damage.

Other choices imply a limited scope of keys. Focusing solely on grand master or main entrance keys would restrict access to essential areas, and having only keys for mechanical and electrical rooms would not provide the full range of access points needed in an emergency. Access keys intended only for emergencies would also not allow for the necessary operational response required in various situations.