CHAPTER 6 SPRINKLER AND STANDPIPE SYSTEMS test questions and answers

SPRINKLER ARE DESIGNED AS - answer FIRST LINE OF DEFENSE FOR A BUILDING THE TYPER OF SYSTEM AND THE SPACING OF THE DISCHARGE HEADS DEPENDS UPON THE TYPE OF ________________AND ____________________. - answer OCCUPANCY AND WHAT IS BEING PROTECTED type of sprinkler systems - answer wet pipe- fast acting, water immediately dry pipe - filled with air and kept under pressure preaction system- activated by alarm deluge system - all sprinkler discharge foam system - hazardous materials two types of valves - answer outside stem and yolk post indicator valve FDC can be either - answer a siamese type multioutlet How do they get the air out fast on a dry pipe sprinkler? - answer air exhauster How is the fire department notified of sprinkler activation - answer water flow alarm A ______________ is a device placed between the pump and the water flow alarm to minimize water surges. - answer retard chamber the piping that carries the water throughout the building - answer risers two types of sprinklerheads - answer fusible link head- temperature sensitive solder Frangible bulb - glass bulb / color coded part of the sprinkler water hits and gives the water its shape and pattern - answer deflector what should the pump be set too - answer volume position, at 150psi additional male couplings next to the fdc - answer test connections, not fd use class 1 standpipe - answer fd use, 2 1/2 connection within 130 ft of any floor 4" building less than 100' 6" building greater than 100' first flow 500gpm, others 250gpm 65 psi top outlet residual class 2 standpipe - answer 1 1/2 95ft of any floor under 50' 2inch over 50' 2 1/2 100gpm top floor residual 65 class 3 - answer 2 1/2 with 1 1/2 reducer 130 ft 4" less than 100' 6" greater than 100' first 500 gpm all others 250gpm 65 residual standpipe types - answer wet and dry what type of connection fdc - answer siamese connections with female complings what type of valve is placed for fdc - answer clapper valve