CML Security Systems Installation & Maintenance 4

Question 1

What is the purpose of a 'shunt' function in an alarm zone?

Accepted Answer

Temporarily bypass a zone without affecting the rest of the system

Answer

Shunting bypasses a specific zone — for example, allowing a loading dock door to remain open during deliveries — without disarming the entire system.

Question 2

A fingerprint biometric reader requires enrollment before use. Enrollment involves:

Accepted Answer

Scanning the fingerprint multiple times to build a reference template stored in the system

Answer

Enrollment captures multiple scans of a fingerprint to create an averaged template that the reader uses for future identification comparisons.

Question 3

Which type of camera lens provides the widest field of view for covering large open areas?

Accepted Answer

Wide-angle (2.8mm)

Answer

A wide-angle lens with a short focal length (e.g., 2.8mm) provides a broad field of view, ideal for large rooms, parking lots, or lobbies.

Question 4

An alarm panel's backup battery is required to power the system for how long in the absence of AC power under UL 681 standards?

Accepted Answer

24 hours

Answer

UL 681 and most NFPA standards require residential and commercial alarm systems to maintain full operation for a minimum of 24 hours on backup battery alone.

Question 5

When installing conduit for alarm wiring through a fire-rated wall, the installer must:

Accepted Answer

Seal the conduit penetration with listed fire-stop material

Answer

Any penetration of a fire-rated assembly must be sealed with UL-listed fire-stop material to maintain the wall's fire rating and prevent fire spread through the conduit.

(CML) Certified Master Locksmith Practice Test

(CML) Certified Master Locksmith Practice Test

CML Security Systems Installation & Maintenance 4