Commercial Security Solutions Flashcards

A commercial locksmith is asked to install a panic bar on a fire-rated door. Which hardware type is specifically required?

Answer: Fire-rated panic hardware with UL listing

Fire-rated doors require UL-listed fire-rated panic hardware to maintain the door's fire rating and ensure code compliance.

What does 'keying alike' mean when applied to a commercial master key system?

Answer: Multiple locks can be opened by the same change key

Keying alike means two or more locks are set to the same change key, allowing one key to open all of them without a master key.

Which door hardware backset is most common for commercial cylindrical locks in the US?

Answer: 2-3/4 inch

The 2-3/4 inch backset is the standard for commercial cylindrical locks in the United States.

A business owner wants to rekey multiple locks so a terminated employee's key no longer works. What is the locksmith's most efficient first step?

Answer: Identify the key system and affected cylinders

Identifying the key system and which cylinders the terminated employee's key operates allows targeted, efficient rekeying.

In a commercial access control system, what is the function of a 'request to exit' (REX) sensor?

Answer: Allows interior egress without triggering a door alarm

A REX sensor detects motion or door push from the interior and suppresses the door alarm, allowing free exit without credential use.

Which standard governs the physical security rating and testing of high-security cylinder locks in the US?

Answer: UL 437

UL 437 is the standard for high-security cylinder locks, covering pick, drill, and manipulation resistance testing.

A 'door coordinator' is installed on a pair of commercial doors primarily to:

Answer: Ensure the inactive door closes before the active door

A door coordinator controls the closing sequence so the inactive (passive) leaf closes first, preventing latch conflicts on double doors.