Inspector Chapter 14 Flashcards
(47 cards)
The main fire alarm system component that monitors equipment and circuits, receives input signals from initiating devices, activates notification appliances, and transmits signals off-site.
Fire Alarm Control Unit
Signal: Is a warning of a fire emergency or dangerous condition that demands immediate attention
Alarm Signal
Signal: Indicates an off-normal condition of the complete fire protection system.
Supervisory Signal
Signal: Indicates a problem with a monitored circuit or component of the fire alarm system or the system’s power supply.
Trouble Signal
Alarm System that alerts and notifies only occupants on the premises of the existence of a fire so they can safely exit the building and call the fire department.
Protected Premises System
Alarm system that transmits a signal to a constantly attended location operated by an alarm company
Central Station System
Fire alarm system owned and operated by the property owner
Proprietary Alarm System
A _____ system is used to protect large commercial and industrial buildings, high-rise structures, and groups of commonly owned facilities.
Proprietary
System in which alarm signals from the protected premises are transmitted over a leased telephone line to a remote receiving station with a 24 hour staff
Remote Receiving System
System that connects the protected property with the fire department alarm communications center by a municipal master fire alarm box or over a dedicated telephone line.
Public emergency Alarm Reporting System
System that notifies occupants of a dangerous situation and provides information and instructions
Mass Notification System
A _____ heat detector uses two types of metal with different heat-expansion ratios that are bonded.
Bimetallic
Typically, rate-of-rise heat detectors are designed to send a signal when the rise in temperature exceeds ___ to ___ degrees per minute.
12-15F
A _____ rate-of-rise line heat detector can monitor large areas of a building.
Pneumatic
With Rate-Compensation Heat Detectors, if the rate of temperature rise is fairly slow such as ___ to ___ per minute, the sleeve expands at a slow rate that maintains tension on the inner strips.
5 to 6F
Semiconductor made of substances whose resistance varies rapidly and predictably with temperature
Thermistor
This smoke detector works on all types of fires and usually responds more quickly to smoldering fires than ionization smoke detection.
Photoelectric
Contains a sensing chamber consisting of two electrically charged plates and a radioactive source for ionizing the air between the plates
Ionization Smoke Detector
Changes in humidity and atmospheric pressure in the room can cause an _____ detector to malfuction.
Ionization
_____ _____ detectors are installed in the return or supply ducts or plenums of HVAC systems to prevent smoke and products of combustion from being spread throughout the building.
Dust Smoke
A _____ detector is sometimes called a light detector.
Flame
Three types of Flame Detectors:
- Detects Ultraviolet wave Spectrum (UV)
- Those that detect light in the infrared wave spectrum (IR Detectors)
- Those that detect light in both UV and IR waves
An _____ detector is effective in monitoring large areas.
Infrared (IR)
Series of tests performed on fire protection, detection, and/or suppression systems in order to verify operation readiness.
Service Test
