EXAM S12 FDNYC: 2025/2026, WITH
CORRECT/ACCURATE ANSWERS
what is a ALARM NOTIFICATION APPLIANCE - CORRECT ANSWERS-
A fire alarm system component, such as a bell, horn, speaker,
light, text display or vibration device that issues an audible,
tactile, and/or visual alert.
What is a Pressure type waterflow - CORRECT ANSWERS-
Switches mounted on a trim line. Upon waterflow, the switch
transmits an alarm. Pressure type waterflow switches are
commonly used to monitor water
flow in dry pipe and pre-action systems.
what is a AUTOMATIC BALL DRIP - - CORRECT ANSWERS- An
automatic drain valve horizontally installed at the low point
in the piping between the lower check valve and the Fire
Department connection of automatic sprinkler systems. Water
pressure from a Fire Department pumper automatically closes
this valve. It automatically re-opens when pressure ceases,
permitting this piping to drain and thereby preventing freezing
What is a Waterflow Alarm Valves? - CORRECT ANSWERS- The
basic design of most water-flow alarm valves is that of a
,check valve which lifts from its seat when water flows into a
sprinkler system. This alarmthen starts an audible signal to alert
the occupants in the building that the sprinkler
system has been activated.
What is a Vane type waterflow? - CORRECT ANSWERS- Switches
have a paddle inserted inside the main supply piping
perpendicular to the direction of flow. Upon waterflow, the paddle
switch transmits an
alarm. Vane type water-flow switches shall not be installed to
monitor waterflow in dry pipe
or pre-action sprinkler systems.
What is a Alarm Retarding Devices? - CORRECT ANSWERS- An
alarm check valve that is exposed to changing water
supply pressure needs an alarm retarding device. This is required
to prevent false alarms
when the check valve clapper is lifted from its seat by a
temporary pressure surge. Vane
type water flow switches sensitivity can also be adjusted to
changing water pressures.
What are Spray Pattern of Sprinkler Heads? - CORRECT ANSWERS-
The best way to put out a
fire is to spray the water from the sprinkler head downward and
horizontally. The spray pattern will also prevent the spread of the
,fire. The force of the water against the deflector creates a heavy
spray which is directed outward and downward. The shape of the
deflector determines the spray pattern of the water discharged
from the sprinkler head. Usually, this is an umbrella shaped
spray pattern. At a distance of 4 feet below the deflector, the
spray covers a circular area having a diameter of approximately
16 feet when the sprinkler is discharging 15 gpm
What are Systems Using Large Drop Sprinkler Heads? - CORRECT
ANSWERS- Large drop sprinkler heads are special
sprinklers designed to discharge large drops of water from the
head. These sprinkler heads
are used to break through the strong updrafts of high challenge
fires.
GRAVITY TANKS should be at least how many feet above the
highest sprinkler? - CORRECT ANSWERS- A gravity tank should be
at least 25 feet above the highest line of sprinkler heads that it
supplies. Tanks may be located on the tops of buildings or raised
on tall supporting
towers. Examples of a typical gravity tank are shown below
What is a The Vertical Turbine Pump? - CORRECT ANSWERS- A
vertical turbine pump is really a modified centrifugal
, pump that has the capability to draw water from streams, ponds,
wells etc. Unlike the
standard centrifugal pump, the vertical turbine pump does not
need the suction supply to
be under pressure for it to operate. Instead it draws the water into
the pump by suction.
When it reaches the rotating impellers the water pressure and
flow are increased and then
forcefully discharged into the fire protection system.
What does Operation and Supervision means? - CORRECT
ANSWERS- When fire pumps are activated by electric automatic
controllers it is essential that they are constantly monitored to
ensure the availability of the
electrical power supply in case of an emergency. For this reason,
supervisory devices are
installed on the pumps the alert the Certificate of Fitness holder
and/or a central
monitoring station when there is an electrical power failure. In
cases where steam turbines
or internal combustion engines are used similar supervisory
devices are installed to signal
when there is a problem with the controlling equipment.
What are Seismic Restraints? - CORRECT ANSWERS- The NYC
Building Code adopted earthquake code requirements. This
reclassification
CORRECT/ACCURATE ANSWERS
what is a ALARM NOTIFICATION APPLIANCE - CORRECT ANSWERS-
A fire alarm system component, such as a bell, horn, speaker,
light, text display or vibration device that issues an audible,
tactile, and/or visual alert.
What is a Pressure type waterflow - CORRECT ANSWERS-
Switches mounted on a trim line. Upon waterflow, the switch
transmits an alarm. Pressure type waterflow switches are
commonly used to monitor water
flow in dry pipe and pre-action systems.
what is a AUTOMATIC BALL DRIP - - CORRECT ANSWERS- An
automatic drain valve horizontally installed at the low point
in the piping between the lower check valve and the Fire
Department connection of automatic sprinkler systems. Water
pressure from a Fire Department pumper automatically closes
this valve. It automatically re-opens when pressure ceases,
permitting this piping to drain and thereby preventing freezing
What is a Waterflow Alarm Valves? - CORRECT ANSWERS- The
basic design of most water-flow alarm valves is that of a
,check valve which lifts from its seat when water flows into a
sprinkler system. This alarmthen starts an audible signal to alert
the occupants in the building that the sprinkler
system has been activated.
What is a Vane type waterflow? - CORRECT ANSWERS- Switches
have a paddle inserted inside the main supply piping
perpendicular to the direction of flow. Upon waterflow, the paddle
switch transmits an
alarm. Vane type water-flow switches shall not be installed to
monitor waterflow in dry pipe
or pre-action sprinkler systems.
What is a Alarm Retarding Devices? - CORRECT ANSWERS- An
alarm check valve that is exposed to changing water
supply pressure needs an alarm retarding device. This is required
to prevent false alarms
when the check valve clapper is lifted from its seat by a
temporary pressure surge. Vane
type water flow switches sensitivity can also be adjusted to
changing water pressures.
What are Spray Pattern of Sprinkler Heads? - CORRECT ANSWERS-
The best way to put out a
fire is to spray the water from the sprinkler head downward and
horizontally. The spray pattern will also prevent the spread of the
,fire. The force of the water against the deflector creates a heavy
spray which is directed outward and downward. The shape of the
deflector determines the spray pattern of the water discharged
from the sprinkler head. Usually, this is an umbrella shaped
spray pattern. At a distance of 4 feet below the deflector, the
spray covers a circular area having a diameter of approximately
16 feet when the sprinkler is discharging 15 gpm
What are Systems Using Large Drop Sprinkler Heads? - CORRECT
ANSWERS- Large drop sprinkler heads are special
sprinklers designed to discharge large drops of water from the
head. These sprinkler heads
are used to break through the strong updrafts of high challenge
fires.
GRAVITY TANKS should be at least how many feet above the
highest sprinkler? - CORRECT ANSWERS- A gravity tank should be
at least 25 feet above the highest line of sprinkler heads that it
supplies. Tanks may be located on the tops of buildings or raised
on tall supporting
towers. Examples of a typical gravity tank are shown below
What is a The Vertical Turbine Pump? - CORRECT ANSWERS- A
vertical turbine pump is really a modified centrifugal
, pump that has the capability to draw water from streams, ponds,
wells etc. Unlike the
standard centrifugal pump, the vertical turbine pump does not
need the suction supply to
be under pressure for it to operate. Instead it draws the water into
the pump by suction.
When it reaches the rotating impellers the water pressure and
flow are increased and then
forcefully discharged into the fire protection system.
What does Operation and Supervision means? - CORRECT
ANSWERS- When fire pumps are activated by electric automatic
controllers it is essential that they are constantly monitored to
ensure the availability of the
electrical power supply in case of an emergency. For this reason,
supervisory devices are
installed on the pumps the alert the Certificate of Fitness holder
and/or a central
monitoring station when there is an electrical power failure. In
cases where steam turbines
or internal combustion engines are used similar supervisory
devices are installed to signal
when there is a problem with the controlling equipment.
What are Seismic Restraints? - CORRECT ANSWERS- The NYC
Building Code adopted earthquake code requirements. This
reclassification
