S12 FDNY Exam (Latest 2026/2027
Update) | Questions and Verified
Answers | 100% Correct | Grade A
RTI of a standard sprinkler -CORRECTANSWER 80
Sprinkler system with open heads -CORRECTANSWER Deluge system
Freezing point of antifreeze solutions -CORRECTANSWER Hydrometer or
refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 -
CORRECTANSWER Yellow
Distance for hanger assembly to center line of an upright sprinkler head -
CORRECTANSWER 3 inches
Location of the automatic ball drip -CORRECTANSWER Between lower check valve
and fire department connection
Purpose of a ball drip -CORRECTANSWER To prevent freezing in the line
Build up of foreign matter on a sprinkler head -CORRECTANSWER Loading
, When a sprinkler head opens -CORRECTANSWER It is said to be fused
Minimum air pressure inside a pressure tank -CORRECTANSWER 75 psi
Height a gravity tank should be above highest sprinkler heads it supplies -
CORRECTANSWER 25 feet
Frequency for replacing gauges -CORRECTANSWER Every 5 years
Number of spare sprinkler heads required when under 300 sprinklers -
CORRECTANSWER 6
Number of spare sprinkler heads required when there are 300 to 1000 sprinklers -
CORRECTANSWER 12
Number of spare sprinkler heads required when there are over 1000 sprinklers -
CORRECTANSWER 24
Year all sprinklers prior to which shall be replaced -CORRECTANSWER 1920
GPM at which house pumps fill the gravity tank -CORRECTANSWER 65 gpm
Update) | Questions and Verified
Answers | 100% Correct | Grade A
RTI of a standard sprinkler -CORRECTANSWER 80
Sprinkler system with open heads -CORRECTANSWER Deluge system
Freezing point of antifreeze solutions -CORRECTANSWER Hydrometer or
refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 -
CORRECTANSWER Yellow
Distance for hanger assembly to center line of an upright sprinkler head -
CORRECTANSWER 3 inches
Location of the automatic ball drip -CORRECTANSWER Between lower check valve
and fire department connection
Purpose of a ball drip -CORRECTANSWER To prevent freezing in the line
Build up of foreign matter on a sprinkler head -CORRECTANSWER Loading
, When a sprinkler head opens -CORRECTANSWER It is said to be fused
Minimum air pressure inside a pressure tank -CORRECTANSWER 75 psi
Height a gravity tank should be above highest sprinkler heads it supplies -
CORRECTANSWER 25 feet
Frequency for replacing gauges -CORRECTANSWER Every 5 years
Number of spare sprinkler heads required when under 300 sprinklers -
CORRECTANSWER 6
Number of spare sprinkler heads required when there are 300 to 1000 sprinklers -
CORRECTANSWER 12
Number of spare sprinkler heads required when there are over 1000 sprinklers -
CORRECTANSWER 24
Year all sprinklers prior to which shall be replaced -CORRECTANSWER 1920
GPM at which house pumps fill the gravity tank -CORRECTANSWER 65 gpm
