S-12 FDNY spr inkler Exam w ith |! |! |! |! |!
cor r ect detailed solu tions |! |!
what is the minimum size of threaded rod required for sprinkler piping? -
|! |! |! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔3/8 inch |! |! |!
how often are fire department connections hydro-statically tested? - Correct
|! |! |! |! |! |! |! |! |! |!
answer ✔every 5 years |! |! |!
sprinkler heads exposed to corrosive conditions are covered with what? -
|! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔wax or lead |! |! |! |!
automatic sprinkler systems have what color caps on the fire department
|! |! |! |! |! |! |! |! |! |! |!
connections? - Correct answer ✔green |! |! |! |!
non automatic sprinkler systems have what color caps on the fire department
|! |! |! |! |! |! |! |! |! |! |! |!
connections? - Correct answer ✔silver |! |! |! |!
in a pressurized tank the water rot air ratio is what - Correct answer ✔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? - Correct answer ✔400
|! |! |! |! |! |! |! |! |! |! |!
, inspection records are maintained on site for how long? - Correct answer ✔3
|! |! |! |! |! |! |! |! |! |! |! |! |!
years
underwriters labs and factory mutual are what? - Correct answer ✔testing
|! |! |! |! |! |! |! |! |! |! |!
companies
a quick response sprinkler has an RTI ( response time index) of what? -
|! |! |! |! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔50 |! |!
a standard sprinkler has RTI of what? - Correct answer ✔80
|! |! |! |! |! |! |! |! |! |!
a sprinkler system with open heads is called a? - Correct answer ✔Deluge
|! |! |! |! |! |! |! |! |! |! |! |! |!
system
the freezing point if ant freeze solutions is measured by what? - Correct
|! |! |! |! |! |! |! |! |! |! |! |! |!
answer ✔hydrometer or refractometer
|! |! |!
local law 58/2009 requires sprinkler and stand pipe risers to be painted what
|! |! |! |! |! |! |! |! |! |! |! |! |!
color? - Correct answer ✔yellow
|! |! |! |!
the distance for the hanger assembly to the center line of an upright sprinkler
|! |! |! |! |! |! |! |! |! |! |! |! |!
head should be? - Correct answer ✔3 inches
|! |! |! |! |! |! |! |!
cor r ect detailed solu tions |! |!
what is the minimum size of threaded rod required for sprinkler piping? -
|! |! |! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔3/8 inch |! |! |!
how often are fire department connections hydro-statically tested? - Correct
|! |! |! |! |! |! |! |! |! |!
answer ✔every 5 years |! |! |!
sprinkler heads exposed to corrosive conditions are covered with what? -
|! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔wax or lead |! |! |! |!
automatic sprinkler systems have what color caps on the fire department
|! |! |! |! |! |! |! |! |! |! |!
connections? - Correct answer ✔green |! |! |! |!
non automatic sprinkler systems have what color caps on the fire department
|! |! |! |! |! |! |! |! |! |! |! |!
connections? - Correct answer ✔silver |! |! |! |!
in a pressurized tank the water rot air ratio is what - Correct answer ✔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? - Correct answer ✔400
|! |! |! |! |! |! |! |! |! |! |!
, inspection records are maintained on site for how long? - Correct answer ✔3
|! |! |! |! |! |! |! |! |! |! |! |! |!
years
underwriters labs and factory mutual are what? - Correct answer ✔testing
|! |! |! |! |! |! |! |! |! |! |!
companies
a quick response sprinkler has an RTI ( response time index) of what? -
|! |! |! |! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔50 |! |!
a standard sprinkler has RTI of what? - Correct answer ✔80
|! |! |! |! |! |! |! |! |! |!
a sprinkler system with open heads is called a? - Correct answer ✔Deluge
|! |! |! |! |! |! |! |! |! |! |! |! |!
system
the freezing point if ant freeze solutions is measured by what? - Correct
|! |! |! |! |! |! |! |! |! |! |! |! |!
answer ✔hydrometer or refractometer
|! |! |!
local law 58/2009 requires sprinkler and stand pipe risers to be painted what
|! |! |! |! |! |! |! |! |! |! |! |! |!
color? - Correct answer ✔yellow
|! |! |! |!
the distance for the hanger assembly to the center line of an upright sprinkler
|! |! |! |! |! |! |! |! |! |! |! |! |!
head should be? - Correct answer ✔3 inches
|! |! |! |! |! |! |! |!
