S12 FDNY Exam (2026/2027) | Latest Question
Bank | 100% Verified Answers | Complete
Revision Pack | A+
• Sprinkler system with open heads -✓✓Deluge system
• Freezing point of antifreeze solutions -✓✓Hydrometer or
refractometer
• Color required for sprinkler and standpipe risers per local law
58/2009 -✓✓Yellow
• Distance for hanger assembly to center line of an upright sprinkler
head -✓✓3 inches
• Location of the automatic ball drip -✓✓Between lower check valve
and fire department connection
• Purpose of a ball drip -✓✓To prevent freezing in the line
• Build up of foreign matter on a sprinkler head -✓✓Loading
• When a sprinkler head opens -✓✓It is said to be fused
, • Minimum air pressure inside a pressure tank -✓✓75 psi
• Height a gravity tank should be above highest sprinkler heads it
supplies -✓✓25 feet
• Frequency for replacing gauges -✓✓Every 5 years
• Number of spare sprinkler heads required when under 300 sprinklers
-✓✓6
• Number of spare sprinkler heads required when there are 300 to
1000 sprinklers -✓✓12
• Number of spare sprinkler heads required when there are over 1000
sprinklers -✓✓24
• Year all sprinklers prior to which shall be replaced -✓✓1920
• GPM at which house pumps fill the gravity tank -✓✓65 gpm
• Spray pattern of a sprinkler 3 feet below the sprinkler head deflector
-✓✓16 feet at 15 gpm
Bank | 100% Verified Answers | Complete
Revision Pack | A+
• Sprinkler system with open heads -✓✓Deluge system
• Freezing point of antifreeze solutions -✓✓Hydrometer or
refractometer
• Color required for sprinkler and standpipe risers per local law
58/2009 -✓✓Yellow
• Distance for hanger assembly to center line of an upright sprinkler
head -✓✓3 inches
• Location of the automatic ball drip -✓✓Between lower check valve
and fire department connection
• Purpose of a ball drip -✓✓To prevent freezing in the line
• Build up of foreign matter on a sprinkler head -✓✓Loading
• When a sprinkler head opens -✓✓It is said to be fused
, • Minimum air pressure inside a pressure tank -✓✓75 psi
• Height a gravity tank should be above highest sprinkler heads it
supplies -✓✓25 feet
• Frequency for replacing gauges -✓✓Every 5 years
• Number of spare sprinkler heads required when under 300 sprinklers
-✓✓6
• Number of spare sprinkler heads required when there are 300 to
1000 sprinklers -✓✓12
• Number of spare sprinkler heads required when there are over 1000
sprinklers -✓✓24
• Year all sprinklers prior to which shall be replaced -✓✓1920
• GPM at which house pumps fill the gravity tank -✓✓65 gpm
• Spray pattern of a sprinkler 3 feet below the sprinkler head deflector
-✓✓16 feet at 15 gpm
