S12 sprinkler test, S13 standpipe test,
Sprinklers segment 5, S-12 CITYWIDE
SPRINKLER SYSTEMS Questions
and Answers Latest 2026
fire department connection Ans: normally on exterior of
building... FDNY can pump supplemental water into the
sprinkler system, standpipe, or other system furnishing
water for fire extinguishment to supplement existing
water supplies.
system control valve Ans: valve controlling flow to water-
based fire protection systems.
fire command center Ans: Designated room or area in a
structure where the status of the fire detection, alarm,
and protection systems is displayed and the systems can
be manually controlled.
Fire pump, automatic standpipe. Ans: A fire pump
located at or below street level that supplies the lower
300 feet (91.4 m) of a standpipe system or a combined
standpipe and sprinkler system.
tags Ans: on closed section valves serving affected areas:
area affected, brief description, occupancy classification,
c of f number, estimated time until operational
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Green tag Ans: no impairment found in entire system-
main control valve
red tag Ans: place on main control valve if FULLY out of
service... put sprinkler company name, date of removal
from service and anticipated time to operational
blue disk Ans: partially out of service- on all fire
department connections
water storage tank Ans: Collects cooled water
OS & Y valve Ans: indicating type of control valve used
for fire sprinkler system
deluge valve Ans: water supply control valve intended to
be operated by actuation of an automatic detection
system that is installed in the same area as the discharge
devices. INTENDED USE IS MANUAL AND AUTO
deluge sprinkler system Ans: employing open sprinklers
that are attached to a piping system that is connected to
a water supply through a valve that is opened by the
operation of a detection system installed in the same
areas as the sprinklers. WHEN IT OPENS, water flows into
the piping system and discharges from all sprinklers
attached.
Early suppresion fast response sprinklers Ans: fast
response sprinkler that is listed for its capability to
provide fire suppression of specific high challenge fire
hazards
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extra large orifice sprinklers Ans: = or > 1 inch less
pressure to achieve a given discharge density
extended coverage sprinkler Ans: 400 max square feet
discharge 20 foot by 20 foot spacing between sprinklers
fire pump Ans: a provider of liquid flow and pressure
dedicated to fire protection. A fire pump is a part of a
fire sprinklers system water supply and can be powered
by electric, diesel or steam. connected to public water
source or tank. provides higher pressure to sprinkler
system
Glass bulb sprinkler Ans: operated by heat breaking a
glass bulb filled with a non freezing liquid with diameters
that vary form 3 mm for quick response to 5 mm for
standard response
hose valve Ans: valve to additional hose connection
hydraulic placard Ans: sign attached to a hydraulically
calculated sprinkler system indicating the design density,
required gallons per minute and pressure for the system
to operate properly
hydraulically calculated systems Ans: method of sizing
auto sprinkler piping using a prescribed amount of water
to be distributed over a specific area.
impairment coordinator Ans: in charge of safety during
out of service systems
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intermediate level sprinkler Ans: sprinkler equipped with
integral shields to protect the operating elemtn form
discharge from sprinklers installed at higher elevations
large orifice sprinkler Ans: sprinkler head with orifice
size equal or greater than 3/4 and less than 1 inch
listed device Ans: A fire protection component that has
been tested to perform under parameters specified for its
use by a nationally recognized testing agency.
Underwriter's Laboratory (UL) and Factory Mutual (FM)
are the two most common.
Master Pressure Reducing Valve Ans: A pressure reducing
valve installed to regulate pressures in an entire fire
protection system and/or standpipe system zone.
Main Drain Ans: The primary drain connection located on
the system riser and also utilized as a flow test
connection.
Microbiologically Influenced Corrosion (MIC) Ans:
Corrosion caused by the presence of microbes in the
water supply that over time attack the interior of metallic
piping and cause leaks, pitting, and blockages.
Old-Style/Conventional Sprinkler Ans: A sprinkler that
directs 40% to 60% of the water initially in a downward
direction and is designed to be installed with the
deflector in either the upright or pendent position.
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