FST 5 - Chapter 7 (automatic fire sprinkler systems)2023 graded A+ already passed

FST 5 - Chapter 7 (automatic fire sprinkler systems)2023 graded A+ already passedAutomatic Fire Sprinkler Systems - correct answer 1. These systems are networks of underground and overhead piping fed by automatic water supply. a. Upon activation, sprinkler heads connected to the piping at specific intervals apply water over a fire area. b. They have been used for over 130 years to protect property and provide life safety. c. They are unmatched in accomplishing the primary goal of controlling a fire. 2. Dispelling disparaging myths about these systems requires further education to the public about how they work. a. They are ready to operate without human interaction and thus are practical to use. b. The synthetic materials used for construction increase fuel load, burn faster, and emit toxic by-products. c. Properly installed and maintained smoke alarms will alert occupants that there is a fire. 3. Automatic sprinkler systems offer reliable, effective, economical, and proven protection for building and homeowners, including protection of: a. Valuables b. Property c. Lives of their family members, employees, and other occupants of the buildings Effectiveness in Property Protection - correct answer . The basis for fire sprinkler system design is to keep a fire at a relatively small size and under control, not necessarily to extinguish it. Effectiveness in Life Safety - correct answer The purpose of a commercial or industrial fire sprinkler system is not necessarily to provide life safety, but to provide property protection. a. However, NFPA statistics show that when a wet pipe system is installed, there is an 87 percent reduction in fire deaths compared to in buildings that did not have a sprinkler system installed. Fire Sprinkler System Components - correct answer Pipe and Fittings Valves Pipe Support and Stabilization Assemblies Automatic sprinkler heads Pipe and Fittings - correct answer 1. Pipe and fittings join together to provide a conduit for the water that flows to, and then out of, the fire sprinkler heads. Pipe and fitting joining methods - correct answer Commonly used joining methods i. Threads ii. Grooves iii. Flanges iv. Welds v. Solder vi. Heat fusion vii. Brazing viii. Pressure fittings ix. Glue Commonly used piping and tubing materials - correct answer i. Ferrous piping ii. Black steel pipe iii. Galvanized steel pipe iv. Copper tubing v. Alloy materials vi. Chlorinate polyvinyl chloride (CPVC) (dominant type used for residential installations) vii. Brass pipe Many different types of fittings connect piping valves, sprinkler heads, and other components, including: - correct answer i. Elbows ii. Tees