SPRINKLER SYSTEMS TEST ACTUAL EXAM
LATEST 2023-2024 VERIFIED CORRECT
QUESTIONS AND ANSWERS GRADE A.
Alarm Retarding Devices - ANSWER >>>>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.
blue disk - ANSWER >>>>partially out of service- on all fire
department connections
Booster pumps/special service pumps - ANSWER >>>>Booster
pumps are sometimes used in sprinkler systems. They small
pumps with limited power are usually located in the basement or
taking suction from gravity tanks. The booster pump is used when
the water pressure available at the highest sprinkler head does
not quite meet the needs of the sprinkler system. This small pump
increases the water pressure in the sprinkler system until it
reaches acceptable levels. The booster pump should not be
confused with the fire pump or the jockey pump.
Curb Valves - ANSWER >>>>Gate valves of the non-indicating
type are provided in water distribution systems. Gate valves allow
the sprinkler system to be shut off for repairs or maintenance.
Such valves are normally a non-rising stem type. They are
operated using a special key wrench. A valve box is located over
the valve to keep dirt from the valve. The valve box also provides
a convenient access point for the valve wrench to the valve nut. A
,complete record should be made for each valve in the system.
This record should include the exact location, the date it was
installed, the make, the direction of opening, number of turns to
open, and any maintenance that was performed.
The control valve for the building may also be on the outside wall
or attached to an upright post, known as a post indicator valve
(PIV). The building or section of the building controlled by the
valve is usually marked on the post. The position of this valve
(open or closed) is shown through a telltale opening in the post.
On some posts, a padlock must first be opened to release the
operating wrench or wheel handle.
deluge sprinkler system - ANSWER >>>>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.
DELUGE SPRINKLER SYSTEMS - ANSWER >>>>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.
The sprinkler heads in the deluge system are open at all times.
Under normal conditions there is no water in the piping. The air in
the piping is not under pressure. A closed control valve prevents
water from flowing into the system. A fire detection device
automatically opens the control valve when a fire is identified. A
supervisory device signals when the valve is opened. When the
valve is opened water flows into the system. The water is then
,discharged out all of the sprinkler heads. The water control valve
may also be opened manually.
deluge valve - ANSWER >>>>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
Early suppresion fast response sprinklers - ANSWER >>>>fast
response sprinkler that is listed for its capability to provide fire
suppression of specific high challenge fire hazards
extended coverage sprinkler - ANSWER >>>>400 max square
feet discharge
extra large orifice sprinklers - ANSWER >>>>= or > 1 inch less
pressure to achieve a given discharge density
fire command center - ANSWER >>>>...
fire department connection - ANSWER >>>>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.
fire pump - ANSWER >>>>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
Fire Pumps - ANSWER >>>>used as a main water supply source
for sprinkler systems. They may also be used in combination with
gravity tanks to supply sprinkler system. Fire pumps are designed
to take the water from a supply source and then discharge the
, water into the fire protection system under pressure. The amount
of pressure with which the water is discharged from the pump is
called the total head. The total head is measured in pounds per
square inch (psi). The higher the psi rating of the pump the
greater the
full flow test - ANSWER >>>>performed every 5 years:
1. open main valve to let debris escape, then close
2. system air a nd water pressrue recorded.
3. relieve pressure by opening inspector test valve (use
stopwatch)
4. at dry pipe valve note aire pressure which valve trips an note
time
5. at inspectors test note time that water flows steadily.
6. test terminated when clean water flows (shit valve)
compare to past tests
Glass bulb sprinkler - ANSWER >>>>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
Green tag - ANSWER >>>>no impairment found in entire system-
main control valve
hose valve - ANSWER >>>>valve to additional hose connection
hydraulic placard - ANSWER >>>>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 - ANSWER >>>>method of
sizing auto sprinkler piping using a prescribed amount of water to
be distributed over a specific area.
LATEST 2023-2024 VERIFIED CORRECT
QUESTIONS AND ANSWERS GRADE A.
Alarm Retarding Devices - ANSWER >>>>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.
blue disk - ANSWER >>>>partially out of service- on all fire
department connections
Booster pumps/special service pumps - ANSWER >>>>Booster
pumps are sometimes used in sprinkler systems. They small
pumps with limited power are usually located in the basement or
taking suction from gravity tanks. The booster pump is used when
the water pressure available at the highest sprinkler head does
not quite meet the needs of the sprinkler system. This small pump
increases the water pressure in the sprinkler system until it
reaches acceptable levels. The booster pump should not be
confused with the fire pump or the jockey pump.
Curb Valves - ANSWER >>>>Gate valves of the non-indicating
type are provided in water distribution systems. Gate valves allow
the sprinkler system to be shut off for repairs or maintenance.
Such valves are normally a non-rising stem type. They are
operated using a special key wrench. A valve box is located over
the valve to keep dirt from the valve. The valve box also provides
a convenient access point for the valve wrench to the valve nut. A
,complete record should be made for each valve in the system.
This record should include the exact location, the date it was
installed, the make, the direction of opening, number of turns to
open, and any maintenance that was performed.
The control valve for the building may also be on the outside wall
or attached to an upright post, known as a post indicator valve
(PIV). The building or section of the building controlled by the
valve is usually marked on the post. The position of this valve
(open or closed) is shown through a telltale opening in the post.
On some posts, a padlock must first be opened to release the
operating wrench or wheel handle.
deluge sprinkler system - ANSWER >>>>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.
DELUGE SPRINKLER SYSTEMS - ANSWER >>>>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.
The sprinkler heads in the deluge system are open at all times.
Under normal conditions there is no water in the piping. The air in
the piping is not under pressure. A closed control valve prevents
water from flowing into the system. A fire detection device
automatically opens the control valve when a fire is identified. A
supervisory device signals when the valve is opened. When the
valve is opened water flows into the system. The water is then
,discharged out all of the sprinkler heads. The water control valve
may also be opened manually.
deluge valve - ANSWER >>>>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
Early suppresion fast response sprinklers - ANSWER >>>>fast
response sprinkler that is listed for its capability to provide fire
suppression of specific high challenge fire hazards
extended coverage sprinkler - ANSWER >>>>400 max square
feet discharge
extra large orifice sprinklers - ANSWER >>>>= or > 1 inch less
pressure to achieve a given discharge density
fire command center - ANSWER >>>>...
fire department connection - ANSWER >>>>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.
fire pump - ANSWER >>>>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
Fire Pumps - ANSWER >>>>used as a main water supply source
for sprinkler systems. They may also be used in combination with
gravity tanks to supply sprinkler system. Fire pumps are designed
to take the water from a supply source and then discharge the
, water into the fire protection system under pressure. The amount
of pressure with which the water is discharged from the pump is
called the total head. The total head is measured in pounds per
square inch (psi). The higher the psi rating of the pump the
greater the
full flow test - ANSWER >>>>performed every 5 years:
1. open main valve to let debris escape, then close
2. system air a nd water pressrue recorded.
3. relieve pressure by opening inspector test valve (use
stopwatch)
4. at dry pipe valve note aire pressure which valve trips an note
time
5. at inspectors test note time that water flows steadily.
6. test terminated when clean water flows (shit valve)
compare to past tests
Glass bulb sprinkler - ANSWER >>>>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
Green tag - ANSWER >>>>no impairment found in entire system-
main control valve
hose valve - ANSWER >>>>valve to additional hose connection
hydraulic placard - ANSWER >>>>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 - ANSWER >>>>method of
sizing auto sprinkler piping using a prescribed amount of water to
be distributed over a specific area.
