S-12 FDNY Sprinkler Actual Exam
Complete Questions with Verified
Detailed Answers | Already Graded A+ |
New Update
what is the minimum size of threaded rod required for sprinkler piping? -
✔✔3/8 inch
how often are fire department connections hydro-statically tested? - ✔✔every 5
years
sprinkler heads exposed to corrosive conditions are covered with what? -
✔✔wax or lead
automatic sprinkler systems have what color caps on the fire department
connections? - ✔✔green
non automatic sprinkler systems have what color caps on the fire department
connections? - ✔✔silver
in a pressurized tank the water rot air ratio is what - ✔✔2 to 1 which means 2
parts water to 1 part air which also means 66.33% water and 33.67%air
sprinkler heads are factory tested at what psi? - ✔✔400
inspection records are maintained on site for how long? - ✔✔3 years
Page 1 of 7
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
, underwriters labs and factory mutual are what? - ✔✔testing companies
a quick response sprinkler has an RTI ( response time index) of what? - ✔✔50
a standard sprinkler has RTI of what? - ✔✔80
a sprinkler system with open heads is called a? - ✔✔Deluge system
the freezing point if ant freeze solutions is measured by what? - ✔✔hydrometer
or refractometer
local law 58/2009 requires sprinkler and stand pipe risers to be painted what
color? - ✔✔yellow
the distance for the hanger assembly to the center line of an upright sprinkler
head should be? - ✔✔3 inches
the automatic ball drip is located where? - ✔✔Between lower check valve and
fire department connection
what is the purpose of a ball drip? - ✔✔to prevent freezing in the line
the build up of foreign matter on a sprinkler head is called? - ✔✔loading
when a sprinkler head opens it is said to? - ✔✔be fused
the minimum air pressure inside a pressure tank is? - ✔✔75 psi
a gravity tank should be atlas how many feet above the highest sprinkler heads
it supplies? - ✔✔25 feet
Page 2 of 7
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
Complete Questions with Verified
Detailed Answers | Already Graded A+ |
New Update
what is the minimum size of threaded rod required for sprinkler piping? -
✔✔3/8 inch
how often are fire department connections hydro-statically tested? - ✔✔every 5
years
sprinkler heads exposed to corrosive conditions are covered with what? -
✔✔wax or lead
automatic sprinkler systems have what color caps on the fire department
connections? - ✔✔green
non automatic sprinkler systems have what color caps on the fire department
connections? - ✔✔silver
in a pressurized tank the water rot air ratio is what - ✔✔2 to 1 which means 2
parts water to 1 part air which also means 66.33% water and 33.67%air
sprinkler heads are factory tested at what psi? - ✔✔400
inspection records are maintained on site for how long? - ✔✔3 years
Page 1 of 7
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
, underwriters labs and factory mutual are what? - ✔✔testing companies
a quick response sprinkler has an RTI ( response time index) of what? - ✔✔50
a standard sprinkler has RTI of what? - ✔✔80
a sprinkler system with open heads is called a? - ✔✔Deluge system
the freezing point if ant freeze solutions is measured by what? - ✔✔hydrometer
or refractometer
local law 58/2009 requires sprinkler and stand pipe risers to be painted what
color? - ✔✔yellow
the distance for the hanger assembly to the center line of an upright sprinkler
head should be? - ✔✔3 inches
the automatic ball drip is located where? - ✔✔Between lower check valve and
fire department connection
what is the purpose of a ball drip? - ✔✔to prevent freezing in the line
the build up of foreign matter on a sprinkler head is called? - ✔✔loading
when a sprinkler head opens it is said to? - ✔✔be fused
the minimum air pressure inside a pressure tank is? - ✔✔75 psi
a gravity tank should be atlas how many feet above the highest sprinkler heads
it supplies? - ✔✔25 feet
Page 2 of 7
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
