Alarm Technician System Installation Flashcards
7 cards from real CAT practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Alarm Technician System Installation flashcards as text
A technician installs a wireless door sensor that keeps showing a low battery fault immediately after installation. What is the most likely cause?
Answer: The battery is installed with reversed polarity
A low battery fault immediately after installation almost always indicates a battery installed backwards, as the polarity reversal causes incorrect voltage readings.
What does 'tamper supervision' on a motion detector detect?
Answer: Removal or opening of the detector cover
Tamper supervision uses a switch inside the detector that triggers if the cover is opened or the device is removed from its mounting, alerting the panel to potential tampering.
When running alarm wiring in a commercial building, Class 2 wiring must be separated from power wiring by at least how much when running parallel?
Answer: 6 inches
NEC requires at least 2 inches of separation between Class 2 low-voltage alarm wiring and power wiring when running parallel to prevent induction and interference; some authorities require more.
A 4-wire smoke detector requires how many conductors to operate?
Answer: Four conductors: two for power and two for the alarm circuit
4-wire smoke detectors use two conductors for 12V or 24V DC power and two conductors for the normally closed alarm contact that connects to the panel zone.
Which of the following is the correct installation location for a carbon monoxide (CO) detector in a bedroom?
Answer: On the wall 5 feet above the floor
CO detectors should be mounted on walls approximately 5 feet above the floor because CO mixes fairly evenly with air and this height places it near breathing level.
What is the function of the panel's auxiliary power output (AUX) terminals?
Answer: To power sensors and low-current devices from the panel
AUX output terminals provide regulated 12V DC power from the panel to supply sensors, keypads, and other low-current peripheral devices in the system.
Before leaving a residential alarm installation, what documentation must the technician provide to the customer?
Answer: System user manual, warranty information, and a demonstration of system operation
Best practice and most state regulations require technicians to leave the user manual, warranty documents, and provide a live demonstration so the customer can operate the system.