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Sprinkler Chart Questions (S12) Questions and answers
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Sprinkler Chart Questions (S12) Questions and answers
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Sprinkler Chart Questions (S12)- questions and answers-
4% failure rate of sprinklers are due to - questions and answers-Defective piping, closed supply
valve, frozen water lines, improper maintenance and blocked supply lines
A connection on the exterior of a building, through which the fire department can pump
supplemental water into the sprinkler system, standpipe, or other system. (Formally known as a
Siamese connection) - questions and answers-Fire Department Connection
A device capable of removing all solids of sufficient size from water - questions and
answers-Strainer
A device designed to reduce, regulating, controlling or restricting water pressure - questions and
answers-Pressure Regulating Devices
A device that relieves excess water or air pressure from fire protection piping systems -
questions and answers-Pressure Relief Valve
A hose consisting of only a woven jacket that is usually of linen yarns and is of such quality that
the yarn swells when wet, tending to seal the hose - questions and answers-Unlined Hose
A hose with a jacket covered and lined with synthetic rubber or plastic - questions and
answers-Covered Hose
A method of sizing automatical sprinkler systems indicating the design density, required Gallons
per min, and pressure for system to function properly - questions and answers-Hydraulic
Calculated Systems
A non-collapsable hose used under positive pressure having an elastomeric or thermoplastic
tube, a braided or spiral reinforcement, and an outer protective cover - questions and
answers-Booster Hose
A pilot operated pressure reducing valve that may be used with a fire or booster pump designed
for the purpose of preventing the incoming water supply from dropping below a set pressure -
questions and answers-Pressure Control Valve
A raised series of beams (usually steel) bearing on posts or walls to support mechanical
equipment (usually on rooftops) - questions and answers-Dunnage
A sprinkler having special deflectors that are designed to discharge most of the water away from
the nearby wall - questions and answers-Sidewall Sprinkler
, A sprinkler head that directs 40% to 60% of water initially downwards with the deflector in either
upright or pendant position - questions and answers-Old style/Conventional Sprinklers
A sprinkler head with a red frame has a temperature classification of? - questions and
answers-Extra High (325 - 375°F)
A sprinkler head with a white frame has a temperature rating of? - questions and answers-175 -
225°F
A sprinkler head with an orifice size from 3/4" - less than 1" - questions and answers-Large
Orifice Sprinkler
A standpipe system having piping containing water at all times - questions and answers-Wet
standpipe system
A standpipe system that is vertically subdivided as required by code into multiple zones in order
to limit the maximum operating pressure. Each zone will have it's own individual automatic water
supply. - questions and answers-Standpipe, Multi-Zone
A surge in pressure when a high velocity flow of water is abruptly shut off. Can be 7 or more
times the static Pressure. - questions and answers-Water Hammer
A system where fire protection piping services both 2 1/2in outlets for fire department use and
outlets for automatic sprinklers - questions and answers-Combination Standpipe & Sprinkler
System
A tank using air pressure to supply water to fire protection systems. (1/3 air 2/3 water) -
questions and answers-Pressure Tank
A type of control valve for a sprinkler system in which the position of the center screw indicates
whether the valve is open or closed. - questions and answers-OS&Y (Outside Stem and yolk)
Valve
A valve connection on a water supply system having one or more outlets used to supply hose
and fire department connections with water - questions and answers-Fire Hydrant
A valve designed for the purpose of reducing the downstream water pressure under both
flowing (residual) and non flowing (static) confitions - questions and
answers-Pressure-Reducing Valve
About ____ of fires are extinguished or controlled when sprinklers are installed - questions and
answers-96%
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