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30 Cards in this Set
- Front
- Back
Name the five primary functions of a fire alarm system |
Early detection Occupant notified Activation of emergency control functions Building system management Fire dept notified |
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Name the four elements that affect fire alarm reliability |
Design Equipment Install Maintenance |
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What type of detection was developed to protect large open areas |
Projected be smoke detectors |
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Name the 3 types of supervising station systems |
Central Proprietary Remote |
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The primary purpose of dwelling fire warning equipment or system |
Life safety |
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An addressable fire alarm system control unit monitors the status of initiating devices |
By periodically polling the device |
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Which of the following is an alarm signal initiating device |
Manual station |
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Name at least three types of notification appliances used to alert occupants |
Bealls Chimes Sirens speakers strobes |
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Name at least three emergency control functions that may be controlled by a fire alarm system |
HVAC shutdown smoke doors elevator recall and shut down door unlock |
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Which circuit type is addressable |
SLC |
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Three signals produced by a fire alarm system |
Alarm supervisory trouble |
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A valve tamper switch when actuated will produce what type of signal |
Supervisory |
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Name the three types of fire alarm circuits |
IDC NAC SLC |
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Signaling line circuits monifer Integrity by |
Pulling Integrity devices |
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Which circuit classes considered as Fail-Safe |
Class D |
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Conductors return into the control unit from the last field device on the circuit might indicate a |
Class a circuit |
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Secondary power supplies must Supply power to protected premises fire alarm systems for a minimum of |
24 hours of standby followed by five minutes of alarm |
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Upon detection of a trouble condition fire alarm systems controls must initiate a trouble signal Within |
200 seconds |
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Supervisory signal initiating devices indicate a |
off normal suppression system |
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Ionization type smoke detectors use what type of means of detecting smoke particles |
Americium 241 |
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Smoke detectors that detect Smoke by reflecting light from smoke particles onto a sensor are called |
Light scattering |
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Which type of smoke detector works best in large open areas |
Projected beam type |
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Rate of Rise heat detectors usually operate when the temperature rises what per minute |
12 - 15 degrees |
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Wall mounted spot type heat detectors are installed so that the top of the tector is blank from the ceiling |
4 - 12 inches |
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Water flow switches are permitted to have a time delay or retard up to |
90 seconds |
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NFPA 72 permits what to be used as a guide for smoke detector spacing on smooth and level ceilings |
30 feet |
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Valve supervisory initiating devices must initiate a supervisory signal within how many Revolutions of the hand wheel or blank of the travel distance of the valve l |
2. 1/5 |
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The type of audible Appliance used on Evac systems |
Speaker |
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Visible notification appliances are required when the Ambient sound pressure level is greater than |
105 DBA |
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The minimum required sound pressure level for public mode signaling is greater of blank above the average ambient or 5 DB above the maximum SPL lasting a minute or more using a weighted scale |
15 db |