S12 FDNY Exam Latest Update 2025/2026| Real-Based
Questions with Verified Answers| Graded A+
________ NOZZLES ARE USED FOR TRANSFORMER VAULTS AND OTHER HAZARDOUS AREAS. -
Correct Answers-OPEN-FIXED
________ SYSTEMS ARE INSTALLED WHERE A WET PIPE SYSTEM CANNOT BE HEATED TO
PREVENT FREEZING. - Correct Answers-DRY PIPE
_________ ARE ABLE TO SUPPLY FEED MAINS OR CROSS MAINS DIRECTLY. - Correct Answers-
RISERS
_________ SPRINKLERS HAVE BEEN RECALLED. - Correct Answers-CYCLING
_________ SYSTEMS ARE USED FOR THE PROTECTION OF SPECIAL HAZARDOUS OCCUPANCIES. -
Correct Answers-FOAM SUPPLY
_________ SYSTEMS ARE USUALLY FOUND IN BASEMENTS OR OTHER DIFFICULT TO REACH
AREAS. - Correct Answers-PERFORATED PIPE
__________ SHALL BE POSTED ON THE TAG INDICATING BOTH STATIC AND FLOW PRESSURES
BEFORE AND AFTER. - Correct Answers-DRAIN TEST RESULTS
__________ SHALL BE READILY AVAILABLE TO ANY REPRESENTATIVE OF THE FIRE DEPT. THESE
ARE TO BE MAINTAINED ON SITE FOR 3 YEARS. - Correct Answers-RECORDS
__________ SHALL NOT BE USED TO FASTEN THE SYSTEM OR BUILDING ATTACHMENTS TO THE
STRUCTURE. - Correct Answers-NAILS
__________ TANKS ARE MADE OF WOOD, STEEL, OR CONCRETE. - Correct Answers-GRAVITY
__________ VALVES ARE NO LONGER PERMITTED TO BE INSTALLED. - Correct Answers-COLD
WEATHER
___________ ARE DESIGNED TO TAKE WATER FROM A SUPPLY AND DISCHARGE IT UNDER
PRESSURE. - Correct Answers-FIRE PUMPS
____________ LINES ARE DIRECTLY CONNECTED TO SPRINKLER HEADS. - Correct Answers-
BRANCH
A _______ SHALL BE REQUIRED TO POST TAGS AT MAIN CONTROL VALVE AND ANY SECTIONAL
VALVES. - Correct Answers-MASTER FIRE SUPPRESSION PIPING CONTRACTOR
,A ________ CAN INSPECT, MAINTAIN, TEST, AND REPAIR ALL FIRE STANDPIPE AND SPRINKLER
SYSTEMS. - Correct Answers-MASTER FIRE SUPPRESSION PIPING CONTRACTOR (MFSPC)
A ________ DISC OF 8-9 INCHES SHALL BE PLACED ON CONNECTIONS TO INDICATE THE SYSTEM
IS PARTIALLY OUT OF SERVICE. - Correct Answers-BLUE
A _________ DISC OF 8-9 INCHES SHALL BE PLACED ON CONNECTIONS TO INDICATE THE
SYSTEM IS FULLY OUT OF SERVICE. - Correct Answers-WHITE
A MASTER PLUMBER (MP) WITH COF IS LIMITED TO RESIDENTIAL OCCUPANCIES WITH
_________ SPRINKLER HEADS OR LESS. - Correct Answers-30
A MINIMUM OF _________ EXTRA SPRINKLER HEADS WITH THE APPROPRIATE WRENCHES
SHALL BE AVAILABLE TO REPLACED DAMAGED ONES - Correct Answers-6
A SIGN INDICATING THE LOCATION OF ALL _______ SHALL BE KEPT IN THE COMPACTOR ROOM.
- Correct Answers-CONTROL VALVES
A VERTICAL TURBINE PUMP IS USED TO DRAW WATER FROM A WELL TO ___________. -
Correct Answers-FILL A STORAGE TANK.
ABOUT ______ PERCENT OF FIRES ARE EXTINGUISHED OR CONTROLLED WHEN SPRINKLERS ARE
INSTALLED. - Correct Answers-96
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.
ALL INDICATING VALVES IN THE COMPACTOR SPRINKLER SYSTEM SHALL BE ________ OPEN. -
Correct Answers-SEALED
AN ACCELERATOR AND EXHAUSTER ARE USED TO _______THE TIME TO ALLOW WATER INTO
THE SYSTEM. - Correct Answers-REDUCE
AT A DISTANCE OF 4 FEET BELOW THE DEFLECTOR, THE SPRAY PATTERN COVERS A DIAMETER OF
_________ FEET WHEN DISCHARGING AT 15 GPM. - Correct Answers-16
AUTOMATIC BALL DRIP DEVICES SHALL BE INSTALLED IN THE _________ POSITION. - Correct
Answers-HORIZONTAL
AUTOMATIC FILL PUMPS FILL THE TANK AT A RATE OF _________ GPM OR MORE. - Correct
Answers-65
, Automatic fill pumps supply the water to most gravity tanks. The pumps fill the tank at a rate of
__ gpm - Correct Answers-65
AUTOMATIC FIRE PUMPS ARE USUALLY NEEDED WHERE A ___________ MAY OCCUR
IMMEDIATELY. - Correct Answers-HIGH WATER DEMAND
blue disk - Correct Answers-partially out of service- on all fire department connections
Booster pumps/special service pumps - Correct Answers-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.
BOTH ACCLERATOR AND EXHAUSTER ARE ACTIVATED WHEN A DROP OF _______ PSI IS
DETECTED IN THE SYSTEM. - Correct Answers-2
BUILD UP OF FOREIGN MATERIALS ON SPRINKLER HEADS IS COMMONLY CALLED _________. -
Correct Answers-LOADING
Centrifugal pump can pump at a rate of - Correct Answers-25 to 5000 gallons per minute
CENTRIFUGAL PUMPS ARE CAPABLE OF DISCHARGING WATER FROM ____________ TO
_________ GPM. - Correct Answers-25, 5000
COF HOLDERS SHOULD MANUALLY ACTIVATE THE FIRE PUMPS IAW ___________. - Correct
Answers-MANUFACTURER INSTRUCTIONS
Control valve - Correct Answers-A valve controlling flow to water base fire protection system.
Control valve do not include hose valves
Conventional Sprinkler - Correct Answers-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.
CPVC PIPE HANGER SPACE FOR 3 INCH PIPE IS ________ FEET. - Correct Answers-10
CPVC PIPE HANGER SPACE FOR 3/4 INCH PIPE IS ___________. - Correct Answers-5 FT 6 IN
Curb Valves - Correct Answers-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
Questions with Verified Answers| Graded A+
________ NOZZLES ARE USED FOR TRANSFORMER VAULTS AND OTHER HAZARDOUS AREAS. -
Correct Answers-OPEN-FIXED
________ SYSTEMS ARE INSTALLED WHERE A WET PIPE SYSTEM CANNOT BE HEATED TO
PREVENT FREEZING. - Correct Answers-DRY PIPE
_________ ARE ABLE TO SUPPLY FEED MAINS OR CROSS MAINS DIRECTLY. - Correct Answers-
RISERS
_________ SPRINKLERS HAVE BEEN RECALLED. - Correct Answers-CYCLING
_________ SYSTEMS ARE USED FOR THE PROTECTION OF SPECIAL HAZARDOUS OCCUPANCIES. -
Correct Answers-FOAM SUPPLY
_________ SYSTEMS ARE USUALLY FOUND IN BASEMENTS OR OTHER DIFFICULT TO REACH
AREAS. - Correct Answers-PERFORATED PIPE
__________ SHALL BE POSTED ON THE TAG INDICATING BOTH STATIC AND FLOW PRESSURES
BEFORE AND AFTER. - Correct Answers-DRAIN TEST RESULTS
__________ SHALL BE READILY AVAILABLE TO ANY REPRESENTATIVE OF THE FIRE DEPT. THESE
ARE TO BE MAINTAINED ON SITE FOR 3 YEARS. - Correct Answers-RECORDS
__________ SHALL NOT BE USED TO FASTEN THE SYSTEM OR BUILDING ATTACHMENTS TO THE
STRUCTURE. - Correct Answers-NAILS
__________ TANKS ARE MADE OF WOOD, STEEL, OR CONCRETE. - Correct Answers-GRAVITY
__________ VALVES ARE NO LONGER PERMITTED TO BE INSTALLED. - Correct Answers-COLD
WEATHER
___________ ARE DESIGNED TO TAKE WATER FROM A SUPPLY AND DISCHARGE IT UNDER
PRESSURE. - Correct Answers-FIRE PUMPS
____________ LINES ARE DIRECTLY CONNECTED TO SPRINKLER HEADS. - Correct Answers-
BRANCH
A _______ SHALL BE REQUIRED TO POST TAGS AT MAIN CONTROL VALVE AND ANY SECTIONAL
VALVES. - Correct Answers-MASTER FIRE SUPPRESSION PIPING CONTRACTOR
,A ________ CAN INSPECT, MAINTAIN, TEST, AND REPAIR ALL FIRE STANDPIPE AND SPRINKLER
SYSTEMS. - Correct Answers-MASTER FIRE SUPPRESSION PIPING CONTRACTOR (MFSPC)
A ________ DISC OF 8-9 INCHES SHALL BE PLACED ON CONNECTIONS TO INDICATE THE SYSTEM
IS PARTIALLY OUT OF SERVICE. - Correct Answers-BLUE
A _________ DISC OF 8-9 INCHES SHALL BE PLACED ON CONNECTIONS TO INDICATE THE
SYSTEM IS FULLY OUT OF SERVICE. - Correct Answers-WHITE
A MASTER PLUMBER (MP) WITH COF IS LIMITED TO RESIDENTIAL OCCUPANCIES WITH
_________ SPRINKLER HEADS OR LESS. - Correct Answers-30
A MINIMUM OF _________ EXTRA SPRINKLER HEADS WITH THE APPROPRIATE WRENCHES
SHALL BE AVAILABLE TO REPLACED DAMAGED ONES - Correct Answers-6
A SIGN INDICATING THE LOCATION OF ALL _______ SHALL BE KEPT IN THE COMPACTOR ROOM.
- Correct Answers-CONTROL VALVES
A VERTICAL TURBINE PUMP IS USED TO DRAW WATER FROM A WELL TO ___________. -
Correct Answers-FILL A STORAGE TANK.
ABOUT ______ PERCENT OF FIRES ARE EXTINGUISHED OR CONTROLLED WHEN SPRINKLERS ARE
INSTALLED. - Correct Answers-96
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.
ALL INDICATING VALVES IN THE COMPACTOR SPRINKLER SYSTEM SHALL BE ________ OPEN. -
Correct Answers-SEALED
AN ACCELERATOR AND EXHAUSTER ARE USED TO _______THE TIME TO ALLOW WATER INTO
THE SYSTEM. - Correct Answers-REDUCE
AT A DISTANCE OF 4 FEET BELOW THE DEFLECTOR, THE SPRAY PATTERN COVERS A DIAMETER OF
_________ FEET WHEN DISCHARGING AT 15 GPM. - Correct Answers-16
AUTOMATIC BALL DRIP DEVICES SHALL BE INSTALLED IN THE _________ POSITION. - Correct
Answers-HORIZONTAL
AUTOMATIC FILL PUMPS FILL THE TANK AT A RATE OF _________ GPM OR MORE. - Correct
Answers-65
, Automatic fill pumps supply the water to most gravity tanks. The pumps fill the tank at a rate of
__ gpm - Correct Answers-65
AUTOMATIC FIRE PUMPS ARE USUALLY NEEDED WHERE A ___________ MAY OCCUR
IMMEDIATELY. - Correct Answers-HIGH WATER DEMAND
blue disk - Correct Answers-partially out of service- on all fire department connections
Booster pumps/special service pumps - Correct Answers-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.
BOTH ACCLERATOR AND EXHAUSTER ARE ACTIVATED WHEN A DROP OF _______ PSI IS
DETECTED IN THE SYSTEM. - Correct Answers-2
BUILD UP OF FOREIGN MATERIALS ON SPRINKLER HEADS IS COMMONLY CALLED _________. -
Correct Answers-LOADING
Centrifugal pump can pump at a rate of - Correct Answers-25 to 5000 gallons per minute
CENTRIFUGAL PUMPS ARE CAPABLE OF DISCHARGING WATER FROM ____________ TO
_________ GPM. - Correct Answers-25, 5000
COF HOLDERS SHOULD MANUALLY ACTIVATE THE FIRE PUMPS IAW ___________. - Correct
Answers-MANUFACTURER INSTRUCTIONS
Control valve - Correct Answers-A valve controlling flow to water base fire protection system.
Control valve do not include hose valves
Conventional Sprinkler - Correct Answers-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.
CPVC PIPE HANGER SPACE FOR 3 INCH PIPE IS ________ FEET. - Correct Answers-10
CPVC PIPE HANGER SPACE FOR 3/4 INCH PIPE IS ___________. - Correct Answers-5 FT 6 IN
Curb Valves - Correct Answers-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
