Podcast
Questions and Answers
What type of detector is commonly known as a 'Thermostat'?
What type of detector is commonly known as a 'Thermostat'?
Which detector type is most effective in areas where fires produce significant smoke and gas?
Which detector type is most effective in areas where fires produce significant smoke and gas?
What is a characteristic feature of the Fixed Temperature Unit in heat detectors?
What is a characteristic feature of the Fixed Temperature Unit in heat detectors?
Which component of a fire alarm system is responsible for processing information and coordination of alarms?
Which component of a fire alarm system is responsible for processing information and coordination of alarms?
Signup and view all the answers
In terms of location, how are temperature detectors rated for ordinary rooms?
In terms of location, how are temperature detectors rated for ordinary rooms?
Signup and view all the answers
Which type of smoke detector uses the obscuration of a light beam as its detection method?
Which type of smoke detector uses the obscuration of a light beam as its detection method?
Signup and view all the answers
What is the primary function of alarm devices in fire detection systems?
What is the primary function of alarm devices in fire detection systems?
Signup and view all the answers
Rate-of-Rise Units in heat detectors are designed to activate based on what criterion?
Rate-of-Rise Units in heat detectors are designed to activate based on what criterion?
Signup and view all the answers
What is a characteristic of a Zone Coded System in fire alarm panels?
What is a characteristic of a Zone Coded System in fire alarm panels?
Signup and view all the answers
How does a Dual Coded System function in fire alarms?
How does a Dual Coded System function in fire alarms?
Signup and view all the answers
Which system allows for selective alerting of key personnel?
Which system allows for selective alerting of key personnel?
Signup and view all the answers
What is the main feature of a General and Selective Coded System?
What is the main feature of a General and Selective Coded System?
Signup and view all the answers
What does a Pre-signal System enable personnel to do during a fire alarm?
What does a Pre-signal System enable personnel to do during a fire alarm?
Signup and view all the answers
Which type of fire alarm system requires manual activation?
Which type of fire alarm system requires manual activation?
Signup and view all the answers
What distinguishes coded manual stations from non-coded stations?
What distinguishes coded manual stations from non-coded stations?
Signup and view all the answers
The function of the control unit panel in a fire alarm system includes all of the following except:
The function of the control unit panel in a fire alarm system includes all of the following except:
Signup and view all the answers
Which alarm type is characterized by a rhythmic ringing at 108 strokes per minute?
Which alarm type is characterized by a rhythmic ringing at 108 strokes per minute?
Signup and view all the answers
Sprinkler systems in fire detection are controlled through which component?
Sprinkler systems in fire detection are controlled through which component?
Signup and view all the answers
What is a characteristic of non-coded systems used in fire alarms?
What is a characteristic of non-coded systems used in fire alarms?
Signup and view all the answers
Which system combines both manual and automatic activation methods?
Which system combines both manual and automatic activation methods?
Signup and view all the answers
Which component must be serviced with an emergency standby battery for fire alarms?
Which component must be serviced with an emergency standby battery for fire alarms?
Signup and view all the answers
Study Notes
Communication and Signal Systems
- All signal systems require a surveillance system to process information, including the transmission of signals, and a way to indicate the signals, such as visually, audibly, or on permanent records.
Types of Communication and Signal Systems
-
Fire Detection Alarm System: Detects fire products such as smoke, heat, and light, providing early notification for occupant safety. Utilizes various methods, like heat/smoke detectors, to alert occupants to a fire.
-
Building Security Systems: Include intruder detection, building access, and CCTV.
-
Audio and Visual Telecommunication Systems: Comprises telephone, intercom, and public television equipment.
-
Time Equipment: Incorporates clock and program equipment.
Fire Detection and Alarm Systems
-
Detects: Products of combustion (smoke, heat, light).
-
Methods: Utilizing various heat and smoke detection techniques.
-
Alerting: Includes audible and visual alarms.
-
Components:
-
Detectors: Detect fire products.
-
Control Unit/Panel: Manages the system.
-
Alarm Devices: Provide signals (audible and visual).
-
Wiring/Circuitry: Connects all components.
Detectors
-
Types of Temperature (Heat) Detectors:
-
Fixed Temperature: Contacts trigger when a set temperature is reached.
-
Rate-of-Rise: Activates when the rate of temperature change exceeds a set value.
-
Combinations: Combined units with both features.
-
Types of Smoke Detectors (Photoelectric):
-
Photoelectric: Reacts to the obscuring of a light beam by smoke.
-
Types of Smoke Detectors (Ionization):
-
Ionization: Detects ionized particles in the air.
-
Flame Detectors (Types):
-
Infrared (IR): Detects rapid flaming combustion and CO2 production. Used in enclosed spaces, like storage areas, and has less sensitivity
-
Ultraviolet (UV): Useful for detecting UV radiation, such as from walls and ceilings
-
Combined UV/IR: Combines both technologies.
Alarm Systems
-
Manual Pull Station: Lever-like devices mounted in strategic locations that activate an alarm when pulled.
-
Emergency Voice Communication System: Uses pre-programmed recorded messages to provide guidance in emergencies.
-
Alarm System: Consists of devices that create audible signals (bells, buzzers, strobes etc.) and external bells for notifying others of a fire.
-
Types of Alarm Systems
-
Manual: Use a trigger to activate.
-
Non-coded manual stations: stations aren't identifiable at the control panel
-
Coded manual stations: stations have codes received at the control panel
-
Automatic: Use detectors to trigger the alarm
-
Combination of both.
-
Control Unit Panel Typical Functions:
-
Non-coded: Continuous ringing of alarm, zoned (identifiable) by annunciator.
-
Master Coded: Rhythmic cadence ("march time") alarm.
-
Zone Coded: Zoned alarm with single-stroke gong, indicating station.
-
Dual Coded: Combination of non- and zone-coded systems with multiple functions.
-
General/Selective Coded: Fully coded manual and automatic devices, triggering code transmitters at the control panel.
-
Pre-signal: System designed to alert specific personnel and turning on the general alarm manually.
Sprinkler Alarm System
- Consists of sprinkler heads, network of pipes, dispensed water when fire detected.
Control Unit Panel
- Function: Energizes audible devices (bells, buzzers, gongs) upon alarm signal receipt, and may include other functions like shutting off utilities or lights to prevent fire spread. -Servicing: Emergency standby batteries. Interfaced with building management systems (BMS).
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz covers the essential types of communication and signal systems, including fire detection alarm systems, building security systems, and telecommunication solutions. Explore how these systems function, their detection methods, and the importance of alerting mechanisms. Test your understanding of how these systems enhance safety and security.
