S12 SPRINKLER EXAMS SET 2025 QUESTIONS ANSD
SOLUTIONS RATED A+
✔✔Old-Style/Conventional Sprinkler - ✔✔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.
✔✔Pendent Sprinkler - ✔✔A sprinkler designed to be installed in such a way that the
water stream is directed downward against the deflector.
✔✔Pintle Screws - ✔✔A visual indicating device required for sprinklers manufactured
prior to 1999 identifying small orifice sprinklers and large orifice sprinklers where orifice
size is different than the nominal thread size of the sprinkler head.
✔✔Pipe Schedule Systems - ✔✔A method of sizing piping based upon the number of
sprinkler heads and the occupancy of the protected area.
✔✔Preaction Sprinkler System - ✔✔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 - ✔✔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 - ✔✔A valve designed for the purpose of reducing the
downstream water pressure under both flowing (residual) and nonflowing (static)
conditions.
✔✔Pressure Relief Valve - ✔✔A valve designed for the purpose of releasing excess air
or water pressure from the Fire Protection Piping System.
✔✔Pressure Tank - ✔✔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 - ✔✔A sprinkler having a fusible link with a
response time index (RTI) of 50 or less.
✔✔Recessed Sprinkler - ✔✔A sprinkler in which all or part of the body, other than the
shank thread, is mounted above the ceiling.
, ✔✔Residential Sprinkler - ✔✔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) - ✔✔A measurement of the thermal sensitivity of a
sprinkler head expressed in (meters-seconds) 1/2.
✔✔Supervisory signal - ✔✔A signal indicating the need for action in connection with the
supervision of guard tours, fire extinguishing systems or equipment, fire alarm systems
or the maintenance features of related systems.
✔✔Small orifice sprinklers - ✔✔A sprinkler head with and orifice size smaller than 1⁄2"
✔✔Solder Link Sprinkler - ✔✔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 - ✔✔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 - ✔✔A sprinkler having a fusible link with a
response time index (RTI) of 80 or more.
✔✔Supervisory signal-initiating device - ✔✔An initiating device, such as a valve
supervisory switch, water level indicator, or low-air pressure switch on a dry-pipe or pre-
action sprinkler system, that triggers a supervisory signal.
✔✔Testing - ✔✔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 - ✔✔A sprinkler designed to be installed in such a way that the
water spray is directed upwards against the deflector.
✔✔Water Spray Fixed System - ✔✔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.)
SOLUTIONS RATED A+
✔✔Old-Style/Conventional Sprinkler - ✔✔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.
✔✔Pendent Sprinkler - ✔✔A sprinkler designed to be installed in such a way that the
water stream is directed downward against the deflector.
✔✔Pintle Screws - ✔✔A visual indicating device required for sprinklers manufactured
prior to 1999 identifying small orifice sprinklers and large orifice sprinklers where orifice
size is different than the nominal thread size of the sprinkler head.
✔✔Pipe Schedule Systems - ✔✔A method of sizing piping based upon the number of
sprinkler heads and the occupancy of the protected area.
✔✔Preaction Sprinkler System - ✔✔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 - ✔✔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 - ✔✔A valve designed for the purpose of reducing the
downstream water pressure under both flowing (residual) and nonflowing (static)
conditions.
✔✔Pressure Relief Valve - ✔✔A valve designed for the purpose of releasing excess air
or water pressure from the Fire Protection Piping System.
✔✔Pressure Tank - ✔✔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 - ✔✔A sprinkler having a fusible link with a
response time index (RTI) of 50 or less.
✔✔Recessed Sprinkler - ✔✔A sprinkler in which all or part of the body, other than the
shank thread, is mounted above the ceiling.
, ✔✔Residential Sprinkler - ✔✔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) - ✔✔A measurement of the thermal sensitivity of a
sprinkler head expressed in (meters-seconds) 1/2.
✔✔Supervisory signal - ✔✔A signal indicating the need for action in connection with the
supervision of guard tours, fire extinguishing systems or equipment, fire alarm systems
or the maintenance features of related systems.
✔✔Small orifice sprinklers - ✔✔A sprinkler head with and orifice size smaller than 1⁄2"
✔✔Solder Link Sprinkler - ✔✔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 - ✔✔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 - ✔✔A sprinkler having a fusible link with a
response time index (RTI) of 80 or more.
✔✔Supervisory signal-initiating device - ✔✔An initiating device, such as a valve
supervisory switch, water level indicator, or low-air pressure switch on a dry-pipe or pre-
action sprinkler system, that triggers a supervisory signal.
✔✔Testing - ✔✔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 - ✔✔A sprinkler designed to be installed in such a way that the
water spray is directed upwards against the deflector.
✔✔Water Spray Fixed System - ✔✔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.)
