Utah Burglar Alarm Qualifying Agent – Practice Questions and Answers

Utah Burglar Alarm Qualifying Agent
Questions And Correct Answers


UL Standard for intrusion detectors

639




UL Standard for connectors and switches

634




When installing NC door contacts (open on alarm), the EOL resistor should be placed

In series at device




When installing NO door contacts (short on alarm), the EOL resistor should be placed

In parallel at device




A motion detector that uses a transmit frequency of 20 to 40 KHz is referred to as a:

Ultrasonic detector

,A motion detector that uses a transmit frequency of 10-20 GHz is referred to as a:

Microwave detector




PIRs transmit on a frequency of 100-200 KHz. T or F

False




T or F? PIRs are most sensitive to motion toward and away from the detector.

False




T or F? Microwave detectors are most sensitive to motion toward and away from the
detector.

True




Biased magnetic contacts are used for

High security applications




T or F? Microwave detectors can penetrate glass, wood paneling and Sheetrock.

True

, T or F? Dual technology motion detectors are used to reduce false alarms.

True




T or F? PIRs utilize the Doppler shift principle to detect motion.

False




Why are reed contacts are plated with rhodium or similar materials?

To prevent welding




What is the National Electric Code?

NFPA 70




What is the National Fire Alarm Code?

NFPA 72




Which UL standard covers the installation of burglar alarms?

681