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41 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is Supervisability? |
Supervisability is the ability for a fire alarm system to monitor itself. |
Monitor ________ |
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What sets fire alarm systems apart from other electrical systems? |
Supervisability |
That it has the ability to monitor itself |
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Which type of fire alarm system consists of a single control unit that acts as a master alarm system? |
Proprietary fire alarm System |
Must have the ability to continually monitor itself. |
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What is the name of the device that is installed inside air ducts, to transport air from the protected area back to the detector element. |
Duct Detector |
Quack Quack Quack |
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What is the maximum temperature that a insulation can handle? |
90 Degrees Celsius and 194 Degrees Fahrenheit |
Ugly's page 73 |
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What are three functions of the fire alarm control unit? |
Control the triggering of notification appliances. Continually monitors a circuit's integrity. Check the status of initiating device. |
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What are the three status indications displayed on a fire alarm panel? |
Trouble, normal and Alarm |
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What type of device is disigned to detect abnormally high temperatures? |
Heat Detectors |
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What is Annonciation? |
Annonciation is visual and audio alarm (notification) |
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Spot type heat detector should be located _______? |
At least 12 feet from the kitchen to reduce false alarms. |
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Which type of heat detector concentrates its detecting element in one specific location? |
Spot type detector |
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What is the minimum output level for audible device in a residential dwelling? |
85 dB at a distance of 10 feet |
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What is the maximum output level for audible device? |
120 dB |
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What is the minimum output level for audible devices in a Commercial setting. |
75 dB at a distance of 10 feet. |
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According to NFPA 72 cable assemblies must have a survivability of atleast? |
2 hours |
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Power sources for power-limited fire alarm circuits are limited to a maximum output value of? |
30v and 1000VA |
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SLC is an acronym for _______? |
Signaling Line Circuits |
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What class of fire alarm circuit connects through a two-wire circuit followed by an end-of-line device? |
Class B |
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What is the name of the end of line device on a class B fire alarm system? |
Resistor |
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Chapter 1 in the NEC? |
General |
Article 100: Definitions |
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Chapter 2 in the NEC? |
Wiring and Protection |
Article 200: Use and Identification of Grounded Conductors |
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Chapter 3 in the NEC? |
Wiring Methods and Materials |
Article 300: Wiring Methods |
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Chapter 4 in the NEC? |
Equipment for General Use |
Article 400: Flexible Cords and Cables |
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Chapter 5 in the NEC? |
Special occupancies. |
Article 500: Hazardous (Classified) Location, Class 1, 2, and 3 Divisions 1 and 2 |
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Chapter 6 in the NEC? |
Special Equipment |
Article 640: Audio Signal Processing, Amplification, and Reproduction Equipment |
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Chapter 7 in the NEC? |
Special Conditions |
Article 700: Emergency Systems |
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Chapter 8 in the NEC? |
Communications Systems |
Article 800: Communications Circuits |
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Chapter 9 in the NEC? |
Tables |
The Ugly's |
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About how many Articles are there in the NEC? |
There are about 140 Articles in the NEC. |
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What is High cut through resistance? |
The ability for a material to withstand mechanical pressure without seperation. |
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What is CrossTalk? |
The unwanted transfer of signals from one conductor to another through the process of electromagnetic induction or capacitive coupling. |
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What is one solution to crosstalk? |
To turn neighboring conductors 90 degrees from each other. |
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What material should barriers be? (to prevent noise, crosstalk, existing magnetic field, or eddy current) |
Steel |
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What is Skin effect? |
Skin effect is the moving of electrons from the inner most part of a conductor to the outer most part, using high frequency. |
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What is Attenuation? |
Signal Loss measured in dB. |
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NEC Article 760 defines FPLP as ___? |
Fire Rated Power-limited Plenum Cable. |
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What is Abandoned Cable? |
It is any class 2, class 3, or communication cable not connected at one end or tagged for future use. |
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Article 760 defines NPLFP cable as? |
Non-Power-limited fire-rated plenum. |
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What is the formula for the resistance of a conductor? |
R=(K*L)/Circular mils |
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What is Digital Redundacy? |
Digital Redundacy is the double copying of information sent to back up first package of information in case of failure of the first. |
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Digital package checking? |
A set of Binary information sent over a communication line, compared to a second set to see if any corruption has occured. |
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