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UL Standard for intrusion detectors - CORRECT ANSWER639
UL Standard for connectors and switches - CORRECT ANSWER634
When installing NC door contacts (open on alarm), the EOL resistor should be placed - CORRECT
ANSWERIn series at device
When installing NO door contacts (short on alarm), the EOL resistor should be placed - CORRECT
ANSWERIn parallel at device
A motion detector that uses a transmit frequency of 20 to 40 KHz is referred to as a: - CORRECT
ANSWERUltrasonic detector
A motion detector that uses a transmit frequency of 10-20 GHz is referred to as a: - CORRECT
ANSWERMicrowave detector
PIRs transmit on a frequency of 100-200 KHz. T or F - CORRECT ANSWERFalse
, T or F? PIRs are most sensitive to motion toward and away from the detector. - CORRECT
ANSWERFalse
T or F? Microwave detectors are most sensitive to motion toward and away from the detector. -
CORRECT ANSWERTrue
Biased magnetic contacts are used for - CORRECT ANSWERHigh security applications
T or F? Microwave detectors can penetrate glass, wood paneling and Sheetrock. - CORRECT
ANSWERTrue
T or F? Dual technology motion detectors are used to reduce false alarms. - CORRECT
ANSWERTrue
T or F? PIRs utilize the Doppler shift principle to detect motion. - CORRECT ANSWERFalse
Why are reed contacts are plated with rhodium or similar materials? - CORRECT ANSWERTo
prevent welding
What is the National Electric Code? - CORRECT ANSWERNFPA 70
What is the National Fire Alarm Code? - CORRECT ANSWERNFPA 72
Which UL standard covers the installation of burglar alarms? - CORRECT ANSWER681
What does the ANSI/SIA OSIPS DVI standard cover? - CORRECT ANSWERVideo and ip related
interface