CAT Problem-Solving and Critical Thinking 2

Question 1

A motion detector repeatedly triggers false alarms only during early morning hours. What is the most likely cause?

Accepted Answer

Heating system activating and creating thermal gradients

Answer

Passive infrared detectors can trigger false alarms when HVAC systems activate and create rapid temperature changes that mimic motion.

Question 2

A customer reports that their alarm system shows a 'comm failure' trouble condition. What should be checked first?

Accepted Answer

Verify that the telephone line or network connection is active and properly connected

Answer

A communication failure trouble typically indicates a problem with the communication pathway, so verifying connectivity is the logical first step.

Question 3

When troubleshooting an alarm system, you find that one zone is always in alarm even after bypassing it. What does this suggest?

Accepted Answer

The zone wiring has a short to ground creating a fault condition

Answer

A zone that cannot be cleared even after bypassing indicates a wiring fault such as a short circuit rather than a sensor issue.

Question 4

A technician discovers two alarm systems installed in the same building by different contractors, and both systems are causing interference with each other. What is the best resolution?

Accepted Answer

Coordinate frequencies and communication paths so the systems do not conflict

Answer

Coordinating frequencies, communication channels, and signal paths eliminates interference while allowing both systems to function properly.

Question 5

A glass break detector in a retail store triggers every time a forklift operates nearby. What corrective action should be taken?

Accepted Answer

Relocate the detector or adjust sensitivity to reduce susceptibility to low-frequency vibration

Answer

Adjusting sensitivity or relocating the detector away from the vibration source will reduce nuisance alarms without compromising security.

(CAT) Certified Alarm Technician Practice Test

(CAT) Certified Alarm Technician Practice Test

CAT Problem-Solving and Critical Thinking 2