S12 FDNY Exam Newest 2026 Questions
and Correct Detailed Answers Already
Graded A+
Who must draw a hand drawn sketch of the compactor system - CORRECT
ANSWER-Certificate of fitness holder
What a pre-action valve prevents from entering the system - CORRECT
ANSWER-Water
Size of threaded rod required for pipe hangars 4 inches and smaller - CORRECT
ANSWER-3/8 inch
Size of threaded rod required for pipe hangars 5, 6, and 8 inch - CORRECT
ANSWER-1/2 inch
Size of threaded rod required for pipe hangars for 10 and 12 inch - CORRECT
ANSWER-5/8 inch
,Minimum distance to maintain from sprinkler head to any storage in a room -
CORRECT ANSWER-18 inches
Frequency of inspection for proper number of heads and wrenches in sprinkler
systems - CORRECT ANSWER-Annually
Temperature maintained inside the fire pump room - CORRECT ANSWER-
Above 40 degrees F
Distance fire department connections shall be free of obstructions - CORRECT
ANSWER-3 feet in both directions
RTI of a standard sprinkler - CORRECT ANSWER-80
Sprinkler system with open heads - CORRECT ANSWER-Deluge system
Freezing point of antifreeze solutions - CORRECT ANSWER-Hydrometer or
refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 -
CORRECT ANSWER-Yellow
, Distance for hanger assembly to center line of an upright sprinkler head -
CORRECT ANSWER-3 inches
Location of the automatic ball drip - CORRECT ANSWER-Between lower check
valve and fire department connection
Purpose of a ball drip - CORRECT ANSWER-To prevent freezing in the line
Build up of foreign matter on a sprinkler head - CORRECT ANSWER-Loading
When a sprinkler head opens - CORRECT ANSWER-It is said to be fused
Minimum air pressure inside a pressure tank - CORRECT ANSWER-75 psi
Height a gravity tank should be above highest sprinkler heads it supplies -
CORRECT ANSWER-25 feet
Frequency for replacing gauges - CORRECT ANSWER-Every 5 years
and Correct Detailed Answers Already
Graded A+
Who must draw a hand drawn sketch of the compactor system - CORRECT
ANSWER-Certificate of fitness holder
What a pre-action valve prevents from entering the system - CORRECT
ANSWER-Water
Size of threaded rod required for pipe hangars 4 inches and smaller - CORRECT
ANSWER-3/8 inch
Size of threaded rod required for pipe hangars 5, 6, and 8 inch - CORRECT
ANSWER-1/2 inch
Size of threaded rod required for pipe hangars for 10 and 12 inch - CORRECT
ANSWER-5/8 inch
,Minimum distance to maintain from sprinkler head to any storage in a room -
CORRECT ANSWER-18 inches
Frequency of inspection for proper number of heads and wrenches in sprinkler
systems - CORRECT ANSWER-Annually
Temperature maintained inside the fire pump room - CORRECT ANSWER-
Above 40 degrees F
Distance fire department connections shall be free of obstructions - CORRECT
ANSWER-3 feet in both directions
RTI of a standard sprinkler - CORRECT ANSWER-80
Sprinkler system with open heads - CORRECT ANSWER-Deluge system
Freezing point of antifreeze solutions - CORRECT ANSWER-Hydrometer or
refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 -
CORRECT ANSWER-Yellow
, Distance for hanger assembly to center line of an upright sprinkler head -
CORRECT ANSWER-3 inches
Location of the automatic ball drip - CORRECT ANSWER-Between lower check
valve and fire department connection
Purpose of a ball drip - CORRECT ANSWER-To prevent freezing in the line
Build up of foreign matter on a sprinkler head - CORRECT ANSWER-Loading
When a sprinkler head opens - CORRECT ANSWER-It is said to be fused
Minimum air pressure inside a pressure tank - CORRECT ANSWER-75 psi
Height a gravity tank should be above highest sprinkler heads it supplies -
CORRECT ANSWER-25 feet
Frequency for replacing gauges - CORRECT ANSWER-Every 5 years
