FDNY S-12 Questions with Detailed Verified Answers

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FDNY S-12 Questions with Detailed
Verified Answers

Question: what is the minimum size of threaded rod required for sprinkler
piping?
Answer: 3/8 inch


Question: how often are fire department connections hydro-statically
tested?
Answer: every 5 years


Question: sprinkler heads exposed to corrosive conditions are covered with
what?
Answer: wax or lead


Question: automatic sprinkler systems have what color caps on the fire
department connections?
Answer: green


Question: non automatic sprinkler systems have what color caps on the fire
department connections?
Answer: silver


Question: in a pressurized tank the water toair ratio is what

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Answer: 2 to 1 which means 2 parts water to 1 part air which also means
66.33% water and 33.67%air


Question: sprinkler heads are factory tested at what psi?
Answer: 400


Question: inspection records are maintained on site for how long?
Answer: 3 years


Question: underwriters labs and factory mutual are what?
Answer: testing companies


Question: a quick response sprinkler has an RTI ( response time index) of
what?
Answer: 50


Question: a standard sprinkler has RTI of what?
Answer: 80


Question: a sprinkler system with open heads is called a?
Answer: Deluge system


Question: the freezing point if ant freeze solutions is measured by what?
Answer: hydrometer or refractometer


Question: local law 58/2009 requires sprinkler and stand pipe risers to be
painted what color?