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C) Smoke
D) Photoelectric
E) A) and D)
F) A) and C)
F) A) and C)
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Electronic security systems provide surveillance and control for buildings to detect and prevent the occurrence of crime and vandalism. Systems range in size from small residential alarms to large central-control centers for multistory buildings. Large control centers can monitor different surveillance equipment, activate automatic response systems, and voice communication with emergency personnel.
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Electronic security systems provide surveillance and control for buildings to detect and prevent the occurrence of crime and vandalism. Systems range in size from small residential alarms to large central-control centers for multistory buildings. Large control centers can monitor different surveillance equipment, activate automatic response systems, and voice communication with emergency personnel.
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Computerized controls known as building ...View Answer
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Computerized controls known as building ...
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A) Intercom systems
B) Intrusion detectors
C) Visual surveillance systems
D) Motion detectors
E) All of the above
F) B) and D)
F) B) and D)
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A) Photoelectric
B) Heat
C) Fire flame
D) Smoke
E) A) and D)
F) All of the above
F) All of the above
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A
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Topics listed in division 28 i...View Answer
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Topics listed in division 28 i...
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A variety of signal sources act as alarm initiating systems by sensing the products of combustion at different stages of a fire's duration. Ionization detectors can detect microscopic particles emitted during the early stages of a fire. Photoelectric detectors use beams of light to respond to smoke particles visible to the naked eye during development of a fire. Heat detectors sense the actual fire to immediately activate alarm and fire suppression systems. Fire flame detectors are used in occupancies where combustible materials that may burn are present. They detect the presence of either infrared or ultraviolet radiation.
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A variety of signal sources act as alarm initiating systems by sensing the products of combustion at different stages of a fire's duration. Ionization detectors can detect microscopic particles emitted during the early stages of a fire. Photoelectric detectors use beams of light to respond to smoke particles visible to the naked eye during development of a fire. Heat detectors sense the actual fire to immediately activate alarm and fire suppression systems. Fire flame detectors are used in occupancies where combustible materials that may burn are present. They detect the presence of either infrared or ultraviolet radiation.
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Intrusion detectors trigger an alarm whe...View Answer
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Intrusion detectors trigger an alarm whe...
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A) Intercom systems
B) Video surveillance systems
C) Intrusion detectors
D) Motion detectors
E) C) and D)
F) B) and D)
F) B) and D)
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A) BAS
B) Doppler Effect
C) HVAC
D) CCTV
E) A) and B)
F) None of the above
F) None of the above
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