CPL Commercial Security Solutions 3

Question 1

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

Accepted Answer

Fire-rated panic hardware with UL listing

Answer

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

Question 2

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

Accepted Answer

Multiple locks can be opened by the same change key

Answer

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.

Question 3

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

Accepted Answer

2-3/4 inch

Answer

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

Question 4

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?

Accepted Answer

Identify the key system and affected cylinders

Answer

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

Question 5

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

Accepted Answer

Allows interior egress without triggering a door alarm

Answer

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

(CPL) Certified Professional Locksmith Practice Test