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31 Cards in this Set
- Front
- Back
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Automatic Sprinkler Systems consist od sprinklers, sometimes called?
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Sprinkler Heads
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Two general types of Sprinkler Coverage?
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Complete
Partial |
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What is recognized as the most reliable of protection devices?
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Automatic Sprinkler Systems
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Vertical piping to which sprinkler valve, one-way valve, fire department connection (FDC), alarm valve, main drain, and other components are attached?
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The riser
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Three of the most commonly used release mechanisms?
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Fusible Links
Frangible Bulbs Chemical Pellets |
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What are the 6 colors and temps of the sprinkler rating system?
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uncolored or black - ordinary - 135-170
White - intermediate - 175-225 Blue - high - 250-300 Red - extra high - 325-375 Green - very extra high - 400-475 Orange - ultra high - 500-575 |
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Three basic positions of sprinkler heads?
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Upright
Pendant Sidewall |
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Most common type of sprinkler head position?
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Pendant
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Sprinkler Storage cabinets hold?
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6 replacement sprinklers and a wrench
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Whos job is it to change sprinklers?
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In many juristicions its the representitive of the building.
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What are control valves used for?
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To turn off water supply in system to replace sprinkler, perform maintenance, or interrupt operations.
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What control valve shows at a glance whether it is open or closed?
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Indicating control valve
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What are the four types of indicating control valves?
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Outside stem & yoke (OS&Y)
Post Indicator Wall post indicator Post indicator vavle assembly |
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What is the most common type of control valve?
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Outside Stem & Yoke (OS&Y)
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When the OS&Y valve is open what is visible?
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The threaded stem
*(the threaded stem is not visible when closed) |
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What valve is a hollow post that houses a plate with the words OPEN and SHUT visible through a window?
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Post Indicator Vavle (PIV)
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What valve uses a circular disk inside a flat plate that rotates when then valve is opened and closed by crank?
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Post Indicator Valve Assembly (PIVA)
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Two ways sprinkler fire alarm systems are operated
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Hydraulically
Electrically |
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What PSI is needed to supply the highest sprinkler?
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15 PSI
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Fire Department Connections for sprinklers usually consist of what?
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A siamese with at least two 2.5 inch female connections with a slapper valve in each.
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Sprinkler Fire Deparment connections should be appiled with water from pumpers at what capacity?
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1,000 GPM or greater
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5 main types of sprinkler systems?
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Wet-pipe
Dry-pipe Preaction Deluge Residential |
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What type of sprinkler system is used where temps below 40 degrees F are NOT common?
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Wet-pipe system
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What is the simplest type of Automatic Sprinkler System?
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Wet-pipe System
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What type of Sprinkler System is used in locations where piping may be subject to Temps below 40 degrees F?
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Dry-pipe Systems
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What sprinkler system has sloped piping for draining?
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Dry-Pipe system
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What is the required air pressure for a Dry-pipe system?
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20 PSI
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What are dry systems that employ a deluge-type vavle, fire detection, and closed sprinklers?
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Preaction system
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What system is used when it is especcially important to prevent water damage?
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Preaction system
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What system has no fusible links and do not funtion as fire detection devices?
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Deluge Systems
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What system is installed in high hazard occupancies such as aircraft hangers?
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Deluge systems
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