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30 Cards in this Set
- Front
- Back
During operations at a fire in protected properties, firefighters may be required to stop the flow of water from a single sprinkler. (true/false)
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TRUE
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The point at which the fire department can connect into a sprinkler or standpipe system to boost the water flow in the system is known as the ___ or Fire Department Connection.
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FDC
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The system that covers NFPA 13D and may be either a wet- or dry-pipe system is the ___________ system.
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Residential system
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In which of the following locations would a deluge system MOST likely be present?
•grocery store •aircraft hangar •apartment complex •single-family residence |
Aircraft hangar
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In a deluge system, all sprinklers are (open/closed) all the time.
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OPEN
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The system similar to dry-pipe systems in that there is no water in the distribution piping before system activation but different in that it has no fusible links is a ______ system.
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Deluge system
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The _________ system is used when it is especially important to prevent water damage, even if the pipes are broken.
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Preaction system
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The dry systems that employ a deluge-type valve, fire detection devices, and closed sprinklers are known as _________ systems.
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Preaction system
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The required air pressure for dry-pipe systems is usually about __ psi.
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20 psi
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The ___-pipe system is a fire-suppression system that consists of closed sprinklers attached to a piping system that contains air under pressure.
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Dry-pipe system
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The ______ chamber catches excess water that may be sent through the alarm valve during momentary water pressure surges.
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Retard chamber
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Newer wet-pipe systems with a backflow prevention check valve and an electronic flow alarm are sometimes referred to as straight stick systems. (true/false)
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TRUE
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The sprinkler system that is the simplest type and generally requires little maintenance is known as a ___-pipe system.
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Wet-pipe system
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Sprinkler flow alarms are normally _____________ operated.
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Hydraulically
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What is the primary purpose of the main drain?
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To allow sprinkler service personnel to drain water from the system for maintenance purposes.
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The purpose of the inspector's valve is to simulate activation of ___ sprinkler.
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One
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The _____ test valve is provided to simulate the actuation of the system by allowing water to flow into the retard chamber and operate the waterflow alert devices.
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Alarm
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The ____ indicator valve ________ uses a circular disk inside a flat plate on top of the valve housing to show whether the valve is open or shut.
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Post indicator valve assembly
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The ____ post indicator _____ extends horizontally through the wall with the target and valve operating nut on the outside of the building.
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Wall post indicator valve
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The ____ indicator _____ is a type of valve used to control underground water mains and provides a visual means for indicating "open" or "shut".
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Post indicator valve
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A type of control valve for sprinkler systems in which the position of the center screw indicates whether the valve is open or closed is referred to as the outside ____ and ____ valve.
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Outside stem and yoke valve
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A control valve that shows at a glance whether it is open or closed is known as a(n) __________ control valve.
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Indicating control valve
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Control valves are usually located between the source of _____ supply and the _________ system.
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Water; sprinkler
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A sprinkler may not perform due to painted-over sprinkler heads. (true/false)
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TRUE
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NFPA ___ standards are used as a guide for installing sprinkler protection in one- and two-family dwellings.
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13D
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A _______ sprinkler system only protects high-hazard zones.
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Partial
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A sprinkler system that protects an entire building is known as a ________ sprinkler system.
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Complete
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Sprinklers in an automatic system are sometimes called sprinkler _____.
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Heads
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Fire pumps and foam extinguishing systems that sense heat, smoke, or gas and activate automatically are known as _________ suppression systems.
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Automatic
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A system of water pipes, discharge nozzles, and control valves, designed to activate during fires by discharging water is formally known as a(n) automatic _________ system.
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Sprinkler
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