QUESTIONS AND ANSWERS 2026 VERIFIED ANSWERS
ACTUAL UPDATED PRACTICE QUESTIONS HIGH YIELD
STUDY GUIDE LICENSING EXAM PREPARATION GRADED
A+
UL Standard for intrusion detectors - CORRECT ANSWER -639
UL Standard for connectors and switches - CORRECT ANSWER -634
When installing NC door contacts (open on alarm), the EOL resistor should be
placed - CORRECT ANSWER -In series at device
When installing NO door contacts (short on alarm), the EOL resistor should be
placed - CORRECT ANSWER -In parallel at device
A motion detector that uses a transmit frequency of 20 to 40 KHz is referred to
as a: - CORRECT ANSWER -Ultrasonic detector
A motion detector that uses a transmit frequency of 10-20 GHz is referred to as
a: - CORRECT ANSWER -Microwave detector
PIRs transmit on a frequency of 100-200 KHz. T or F - CORRECT
ANSWER -False
T or F? PIRs are most sensitive to motion toward and away from the detector. -
CORRECT ANSWER -False
, T or F? Microwave detectors are most sensitive to motion toward and away
from the detector. - CORRECT ANSWER -True
Biased magnetic contacts are used for - CORRECT ANSWER -High
security applications
T or F? Microwave detectors can penetrate glass, wood paneling and Sheetrock.
- CORRECT ANSWER -True
T or F? Dual technology motion detectors are used to reduce false alarms. -
CORRECT ANSWER -True
T or F? PIRs utilize the Doppler shift principle to detect motion. - CORRECT
ANSWER -False
Why are reed contacts are plated with rhodium or similar materials? -
CORRECT ANSWER -To prevent welding
What is the National Electric Code? - CORRECT ANSWER -NFPA 70
What is the National Fire Alarm Code? - CORRECT ANSWER -NFPA 72
Which UL standard covers the installation of burglar alarms? - CORRECT
ANSWER -681
What does the ANSI/SIA OSIPS DVI standard cover? - CORRECT
ANSWER -Video and ip related interface