S12 FDNY Exam Questions and Verified Answers 2025/2026
Exam Complete Questions And Correct Detailed Answers
(Verified Answers)|Already Graded A+
RTI of a standard sprinkler - answer☑️✔️..80
Sprinkler system with open heads - answer☑️✔️..Deluge system
Freezing point of antifreeze solutions - answer☑️✔️..Hydrometer or refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 - answer☑️✔️..Yellow
Distance for hanger assembly to center line of an upright sprinkler head - answer☑️✔️..3
inches
Location of the automatic ball drip - answer☑️✔️..Between lower check valve and fire
department connection
Purpose of a ball drip - answer☑️✔️..To prevent freezing in the line
Build up of foreign matter on a sprinkler head - answer☑️✔️..Loading
When a sprinkler head opens - answer☑️✔️..It is said to be fused
Minimum air pressure inside a pressure tank - answer☑️✔️..75 psi
, Height a gravity tank should be above highest sprinkler heads it supplies - answer☑️✔️..25
feet
Frequency for replacing gauges - answer☑️✔️..Every 5 years
Number of spare sprinkler heads required when under 300 sprinklers - answer☑️✔️..6
Number of spare sprinkler heads required when there are 300 to 1000 sprinklers -
answer☑️✔️..12
Number of spare sprinkler heads required when there are over 1000 sprinklers -
answer☑️✔️..24
Year all sprinklers prior to which shall be replaced - answer☑️✔️..1920
GPM at which house pumps fill the gravity tank - answer☑️✔️..65 gpm
Spray pattern of a sprinkler 3 feet below the sprinkler head deflector - answer☑️✔️..16 feet at
15 gpm
Notification time to FDNY for an out of service condition - answer☑️✔️..8 hours
Who must draw a hand drawn sketch of the compactor system - answer☑️✔️..Certificate of
fitness holder
What a pre-action valve prevents from entering the system - answer☑️✔️..Water
Exam Complete Questions And Correct Detailed Answers
(Verified Answers)|Already Graded A+
RTI of a standard sprinkler - answer☑️✔️..80
Sprinkler system with open heads - answer☑️✔️..Deluge system
Freezing point of antifreeze solutions - answer☑️✔️..Hydrometer or refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 - answer☑️✔️..Yellow
Distance for hanger assembly to center line of an upright sprinkler head - answer☑️✔️..3
inches
Location of the automatic ball drip - answer☑️✔️..Between lower check valve and fire
department connection
Purpose of a ball drip - answer☑️✔️..To prevent freezing in the line
Build up of foreign matter on a sprinkler head - answer☑️✔️..Loading
When a sprinkler head opens - answer☑️✔️..It is said to be fused
Minimum air pressure inside a pressure tank - answer☑️✔️..75 psi
, Height a gravity tank should be above highest sprinkler heads it supplies - answer☑️✔️..25
feet
Frequency for replacing gauges - answer☑️✔️..Every 5 years
Number of spare sprinkler heads required when under 300 sprinklers - answer☑️✔️..6
Number of spare sprinkler heads required when there are 300 to 1000 sprinklers -
answer☑️✔️..12
Number of spare sprinkler heads required when there are over 1000 sprinklers -
answer☑️✔️..24
Year all sprinklers prior to which shall be replaced - answer☑️✔️..1920
GPM at which house pumps fill the gravity tank - answer☑️✔️..65 gpm
Spray pattern of a sprinkler 3 feet below the sprinkler head deflector - answer☑️✔️..16 feet at
15 gpm
Notification time to FDNY for an out of service condition - answer☑️✔️..8 hours
Who must draw a hand drawn sketch of the compactor system - answer☑️✔️..Certificate of
fitness holder
What a pre-action valve prevents from entering the system - answer☑️✔️..Water
