S12 FDNY Exam (Latest 20235/ 2026 Update)
Questions and Verified Answers| 100% Correct| Grade
A
Pipe Schedule Systems - :answers :A method of sizing piping based upon the number
of sprinkler heads and the occupancy of the protected area.
Preaction Sprinkler System - :answers :A sprinkler system employing automatic
sprinklers that are attached to a piping system that contains air that may or may not be
under pressure, with a supplemental detection system installed in the same areas as the
sprinklers.
Pressure Control Valve - :answers :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 pressure from dropping below a set pressure.
Pressure-Reducing Valve - :answers :A valve designed for the purpose of reducing the
downstream water pressure under both flowing (residual) and nonflowing (static)
conditions.
Pressure Relief Valve - :answers :A valve designed for the purpose of releasing excess
air or water pressure from the Fire Protection Piping System.
Pressure Tank - :answers :A tank using air pressure to supplying water for water-
based fire protection systems. Tank contents to be maintained at one third air to two
thirds water.
,Quick Response Sprinkler Head - :answers :A sprinkler having a fusible link with a
response time index (RTI) of 50 or less.
Recessed Sprinkler - :answers :A sprinkler in which all or part of the body, other than
the shank thread, is mounted above the ceiling.
Residential Sprinkler - :answers :A type of fast response sprinkler that has been
specifically tested to enhance survivability in the room of fire origin and listed for use in
dwelling units.
Response Time Index (RTI) - :answers :A measurement of the thermal sensitivity of a
sprinkler head expressed in (meters-seconds) 1/2.
Supervisory signal - :answers :A signal indicating the need for action or the use of
such device in connection with the supervision of fire alarm systems or the maintenance
features of related systems.
Small orifice sprinklers - :answers :A sprinkler head with and orifice size smaller than
1⁄2"
Solder Link Sprinkler - :answers :A sprinkler operated by the melting of a metal link,
they vary in size and configuration for quick response and standard response sprinklers.
The smaller the size of the link, the faster the sprinkler operates.
Spray Sprinkler - :answers :A type of sprinkler listed for its capability to provide fire
control for a wide range of fire hazards. The most commonly used sprinkler since 1953.
Standard Response Sprinkler Head - :answers :A sprinkler having a fusible link with a
response time index (RTI) of 80 or more.
Supervisory signal-initiating device - :answers :An initiating device, such as a valve
supervisory switch,that triggers a supervisory signal.
, Testing - :answers :A procedure used to determine the status of a system as intended
by conducting periodic physical checks on water based fire protection systems such as
waterflow tests, fire pump tests, alarm tests, and trip tests of dry pipe, deluge, or
preaction valves. These tests follow up on the original acceptance test at intervals
specified in the appropriate chapter of NFPA #25, 2002 edition.
Upright Sprinkler - :answers :A sprinkler designed to be installed in such a way that
the water spray is directed upwards against the deflector.
Water Spray Fixed System - :answers :A special fixed pipe system connected to a
reliable fire protection water supply and equipped with water spray nozzles for specific
water discharge and distribution over the surface or area to be protected. The piping
system is connected to the water supply through an automatically or manually actuated
valve that initiates the flow of water. An automatic valve is actuated by operation of
automatic detection or manual release equipment installed in the same areas as the
water spray nozzles. (In special cases, the automatic detection system may also be
located in another area.)
PREACTION SPRINKLER SYSTEMS - :answers :designed for situations where there
is danger of serious water damage. Water damage is usually caused by damaged
sprinklers or broken piping. Under normal conditions there is no water in the piping.
The air in the piping may or may not be is under pressure. A preaction valve prevents
the water from entering the system. The valve is automatically opened when a fire
detection system discovers that there is a fire or smoke condition. The preaction valve is
tripped by the fire detection system before any of the sprinkler heads open. A
supervisory device signals when the valve is opened. The preaction valve can also be
operated manually.
DELUGE SPRINKLER SYSTEMS - :answers :equipped with open sprinkler heads
designed to wet down an entire area involved in a fire. This system is needed when there
is danger of a fire rapidly spreading throughout the building. The deluge system will
slow down the spread of the fire. Deluge systems are suitable for hazardous occupancies.
This includes buildings in which flammable liquids or other hazardous materials are
handled or stored.
Questions and Verified Answers| 100% Correct| Grade
A
Pipe Schedule Systems - :answers :A method of sizing piping based upon the number
of sprinkler heads and the occupancy of the protected area.
Preaction Sprinkler System - :answers :A sprinkler system employing automatic
sprinklers that are attached to a piping system that contains air that may or may not be
under pressure, with a supplemental detection system installed in the same areas as the
sprinklers.
Pressure Control Valve - :answers :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 pressure from dropping below a set pressure.
Pressure-Reducing Valve - :answers :A valve designed for the purpose of reducing the
downstream water pressure under both flowing (residual) and nonflowing (static)
conditions.
Pressure Relief Valve - :answers :A valve designed for the purpose of releasing excess
air or water pressure from the Fire Protection Piping System.
Pressure Tank - :answers :A tank using air pressure to supplying water for water-
based fire protection systems. Tank contents to be maintained at one third air to two
thirds water.
,Quick Response Sprinkler Head - :answers :A sprinkler having a fusible link with a
response time index (RTI) of 50 or less.
Recessed Sprinkler - :answers :A sprinkler in which all or part of the body, other than
the shank thread, is mounted above the ceiling.
Residential Sprinkler - :answers :A type of fast response sprinkler that has been
specifically tested to enhance survivability in the room of fire origin and listed for use in
dwelling units.
Response Time Index (RTI) - :answers :A measurement of the thermal sensitivity of a
sprinkler head expressed in (meters-seconds) 1/2.
Supervisory signal - :answers :A signal indicating the need for action or the use of
such device in connection with the supervision of fire alarm systems or the maintenance
features of related systems.
Small orifice sprinklers - :answers :A sprinkler head with and orifice size smaller than
1⁄2"
Solder Link Sprinkler - :answers :A sprinkler operated by the melting of a metal link,
they vary in size and configuration for quick response and standard response sprinklers.
The smaller the size of the link, the faster the sprinkler operates.
Spray Sprinkler - :answers :A type of sprinkler listed for its capability to provide fire
control for a wide range of fire hazards. The most commonly used sprinkler since 1953.
Standard Response Sprinkler Head - :answers :A sprinkler having a fusible link with a
response time index (RTI) of 80 or more.
Supervisory signal-initiating device - :answers :An initiating device, such as a valve
supervisory switch,that triggers a supervisory signal.
, Testing - :answers :A procedure used to determine the status of a system as intended
by conducting periodic physical checks on water based fire protection systems such as
waterflow tests, fire pump tests, alarm tests, and trip tests of dry pipe, deluge, or
preaction valves. These tests follow up on the original acceptance test at intervals
specified in the appropriate chapter of NFPA #25, 2002 edition.
Upright Sprinkler - :answers :A sprinkler designed to be installed in such a way that
the water spray is directed upwards against the deflector.
Water Spray Fixed System - :answers :A special fixed pipe system connected to a
reliable fire protection water supply and equipped with water spray nozzles for specific
water discharge and distribution over the surface or area to be protected. The piping
system is connected to the water supply through an automatically or manually actuated
valve that initiates the flow of water. An automatic valve is actuated by operation of
automatic detection or manual release equipment installed in the same areas as the
water spray nozzles. (In special cases, the automatic detection system may also be
located in another area.)
PREACTION SPRINKLER SYSTEMS - :answers :designed for situations where there
is danger of serious water damage. Water damage is usually caused by damaged
sprinklers or broken piping. Under normal conditions there is no water in the piping.
The air in the piping may or may not be is under pressure. A preaction valve prevents
the water from entering the system. The valve is automatically opened when a fire
detection system discovers that there is a fire or smoke condition. The preaction valve is
tripped by the fire detection system before any of the sprinkler heads open. A
supervisory device signals when the valve is opened. The preaction valve can also be
operated manually.
DELUGE SPRINKLER SYSTEMS - :answers :equipped with open sprinkler heads
designed to wet down an entire area involved in a fire. This system is needed when there
is danger of a fire rapidly spreading throughout the building. The deluge system will
slow down the spread of the fire. Deluge systems are suitable for hazardous occupancies.
This includes buildings in which flammable liquids or other hazardous materials are
handled or stored.
