Fire Sprinkler System Exam Solution Manual Already Passed

Fire Sprinkler System Exam Solution Manual Already Passed Fire Sprinkler System/Fire Protection Sprinkler System/Sprinkler System - Answers An integrated system of overhead and underground piping, with one or more automatic water supplies, to which fire sprinklers are attached in a systematic pattern. Fire Sprinkler - Answers A nozzle that distributes water in a specific spraying pattern. Sprinkler Head - Answers An outlet nozzle in a fire protection sprinkler system. Automatic Sprinkler - Answers A fire sprinkler with a normally-closed nozzle which can be individually opened by heat by either melting a fusible element or rupturing a liquid-filled glass bulb. Open Sprinkler - Answers A fire sprinkler head with a normally open nozzle. Main - Answers The principal artery of a system of continuous piping to which branch lines are connected. Branch/Lateral - Answers A part of the piping system to which fire sprinklers are connected. Riser - Answers A water main which extends vertically one full storey or more to convey water to individual floor mains and branch lines. Types of Sprinklers acc to orientation - Answers Upright Type Pendent Type Sidewall Sprinkler Vertical Sidewall Sprinkler Horizontal Sidewall Sprinkler Old-style (Conventional) Intermediate-level Sprinklers (in-rack) Upright Type - Answers Designed for installation above the piping and protects the floor area below the piping. Pendent Type - Answers Designed to be installed below the piping, with the water stream directed downward against a deflector, a flat-toothed disk that develops the sprinkler's spraying pattern. Sidewall Sprinkler - Answers Designed to discharge a spray pattern resembling one-quarter of a sphere to protect the floor area beneath a fire sprinkler on a wall. Vertical Sidewall Sprinkler - Answers Discharges in a vertical (upward or downward) direction against a deflector. Horizontal Sidewall Sprinkler - Answers Located on sidewalls in which the nozzles discharge in a horizontal direction against a deflector. Old-style (Conventional) - Answers A type of sprinkler used in the USA prior to the 1950's. Still remains in common use in Europe, installed in either upright or pendent positions. Intermediate-level Sprinklers (in-rack) - Answers Pendent or upright type with shield attached. Types of Sprinklers acc to function - Answers Dry Sprinklers Corrosion-resistant Dry Sprinklers - Answers Sealed assemblies consisting of a length of air-filled/nitrogen-filled pipe equipped with a special type of coating or plating. 1.1. Dry Pendent 1.2. Dry Upright Corrosion-resistant - Answers Sprinklers intended to resist a corrosive environment. They are provided with a special type of coating or plating. Special Types of Fire Sprinklers - Answers Ceiling Ornamental Fast-response Large Drop Extended Coverage Ceiling - Answers Intended for installation in ceilings, this type includes recessed, flush, and concealed sprinklers. Recessed Flush Concealed Ornamental - Answers Painted or plated by manufacturer. 2.1. Plated 2.2. Painted (factory-applied only) Fast Response - Answers 3.1. Residential 3.2. Quick Response 3.3. Early-Suppression-Fast-Response (ESFR) Wet Pipe Sprinkler - Answers Consist of a network of pipes containing water under pressure. Automatic sprinklers are connected to the piping such that each sprinkler protects an assigned area of coverage. Heat applied to any sprinkler will cause that sprinkler to operate, permitting water to discharge over its area of coverage. Dry Pipe - Answers Water is held back from the piping network by a special dry-pipe valve. Under normal conditions, pressurized or nitrogen within the system keeps the dry-valve closed. Deluge Sprinkler System - Answers A special deluge valve holds back the water from the piping under normal conditions and a separate fire detection system is used to activate the system under fire conditions. The fire detection system opens the deluge valve, which then admits water into the piping network, and water flows simultaneously from all of the open sprinklers. Pre-action Sprinkler System - Answers This system is similar to the preceding deluge sprinkler system, except that automatic sprinklers are used instead of open sprinklers. There is no water in the piping under ordinary circumstances. A small amount of air pressure is usually maintained in the piping network as a check on whether the system remains airtight. Multipurpose Piping Sprinkler System - Answers A system in which the piping serves a non-fire-protection purpose in addition to serving the fire sprinkler system. The piping in the system is used to circulate the water within the building for a series of water source heat pumps. Anti-freeze Sprinkler System - Answers This is similar to a wet-pipe sprinkler system, except that the piping contains an anti-freeze solution instead of water. The anti-freeze solutions permitted by the standards are heavier than water. Exposure Protection System - Answers A sprinkler system designed to protect the exterior of a building or object from the hazard of exposure to an adjacent fire. Such systems usually employ open sprinklers, although some are fitted with automatic sprinklers. Residential Sprinkler System - Answers A type of wet-pipe sprinkler system that employs residential sprinklers (i.e. a type of automatic sprinkler with special response and distribution characteristics). Residential sprinklers (originally developed for the protection of single-family dwellings) are designed to use a small amount of water to its greatest effectiveness against a growing fire so as to maintain life safety in the room of fire origin. Large-Drop Sprinkler System - Answers A type of wet-pipe or pre-action sprinkler system that employs large-drop sprinklers; such automatic sprinklers have the special ability of producing