ANSWERS 100% CORRECT!
, what is the minimum size of threaded rod required for sprinkler piping? - ANSWER 3/8
inch
how often are fire department connections hydro-statically tested? - ANSWER every 5
years
sprinkler heads exposed to corrosive conditions are covered with what? - ANSWER wax
or lead
automatic sprinkler systems have what color caps on the fire department connections? -
ANSWER green
non automatic sprinkler systems have what color caps on the fire department
connections? - ANSWER silver
in a pressurized tank the water toair ratio is what - 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? - ANSWER 400
inspection records are maintained on site for how long? - ANSWER 3 years
underwriters labs and factory mutual are what? - ANSWER testing companies
a quick response sprinkler has an RTI ( response time index) of what? - ANSWER 50
a standard sprinkler has RTI of what? - ANSWER 80
a sprinkler system with open heads is called a? - ANSWER Deluge system
the freezing point if ant freeze solutions is measured by what? - ANSWER hydrometer
or refractometer
local law 58/2009 requires sprinkler and stand pipe risers to be painted what color? -
ANSWER yellow