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 - (ANSWERS)80
Sprinkler system with open heads - (ANSWERS)Deluge system
Freezing point of antifreeze solutions - (ANSWERS)Hydrometer or
refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 -
(ANSWERS)Yellow
Distance for hanger assembly to center line of an upright sprinkler head -
(ANSWERS)3 inches
Location of the automatic ball drip - (ANSWERS)Between lower check
valve and fire department connection
Purpose of a ball drip - (ANSWERS)To prevent freezing in the line
Build up of foreign matter on a sprinkler head - (ANSWERS)Loading
,S12 FDNY Exam Questions and Verified Answers 2025/2026
Exam Complete Questions And Correct Detailed Answers
(Verified Answers)|Already Graded A+
When a sprinkler head opens - (ANSWERS)It is said to be fused
Minimum air pressure inside a pressure tank - (ANSWERS)75 psi
Height a gravity tank should be above highest sprinkler heads it supplies -
(ANSWERS)25 feet
Frequency for replacing gauges - (ANSWERS)Every 5 years
Number of spare sprinkler heads required when under 300 sprinklers -
(ANSWERS)6
Number of spare sprinkler heads required when there are 300 to 1000
sprinklers - (ANSWERS)12
Number of spare sprinkler heads required when there are over 1000
sprinklers - (ANSWERS)24
, S12 FDNY Exam Questions and Verified Answers 2025/2026
Exam Complete Questions And Correct Detailed Answers
(Verified Answers)|Already Graded A+
Year all sprinklers prior to which shall be replaced - (ANSWERS)1920
GPM at which house pumps fill the gravity tank - (ANSWERS)65 gpm
Spray pattern of a sprinkler 3 feet below the sprinkler head deflector -
(ANSWERS)16 feet at 15 gpm
Notification time to FDNY for an out of service condition - (ANSWERS)8
hours
Who must draw a hand drawn sketch of the compactor system -
(ANSWERS)Certificate of fitness holder
What a pre-action valve prevents from entering the system -
(ANSWERS)Water
Size of threaded rod required for pipe hangars 4 inches and smaller -
(ANSWERS)3/8 inch
Exam Complete Questions And Correct Detailed Answers
(Verified Answers)|Already Graded A+
RTI of a standard sprinkler - (ANSWERS)80
Sprinkler system with open heads - (ANSWERS)Deluge system
Freezing point of antifreeze solutions - (ANSWERS)Hydrometer or
refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 -
(ANSWERS)Yellow
Distance for hanger assembly to center line of an upright sprinkler head -
(ANSWERS)3 inches
Location of the automatic ball drip - (ANSWERS)Between lower check
valve and fire department connection
Purpose of a ball drip - (ANSWERS)To prevent freezing in the line
Build up of foreign matter on a sprinkler head - (ANSWERS)Loading
,S12 FDNY Exam Questions and Verified Answers 2025/2026
Exam Complete Questions And Correct Detailed Answers
(Verified Answers)|Already Graded A+
When a sprinkler head opens - (ANSWERS)It is said to be fused
Minimum air pressure inside a pressure tank - (ANSWERS)75 psi
Height a gravity tank should be above highest sprinkler heads it supplies -
(ANSWERS)25 feet
Frequency for replacing gauges - (ANSWERS)Every 5 years
Number of spare sprinkler heads required when under 300 sprinklers -
(ANSWERS)6
Number of spare sprinkler heads required when there are 300 to 1000
sprinklers - (ANSWERS)12
Number of spare sprinkler heads required when there are over 1000
sprinklers - (ANSWERS)24
, S12 FDNY Exam Questions and Verified Answers 2025/2026
Exam Complete Questions And Correct Detailed Answers
(Verified Answers)|Already Graded A+
Year all sprinklers prior to which shall be replaced - (ANSWERS)1920
GPM at which house pumps fill the gravity tank - (ANSWERS)65 gpm
Spray pattern of a sprinkler 3 feet below the sprinkler head deflector -
(ANSWERS)16 feet at 15 gpm
Notification time to FDNY for an out of service condition - (ANSWERS)8
hours
Who must draw a hand drawn sketch of the compactor system -
(ANSWERS)Certificate of fitness holder
What a pre-action valve prevents from entering the system -
(ANSWERS)Water
Size of threaded rod required for pipe hangars 4 inches and smaller -
(ANSWERS)3/8 inch
