FDNY S12 Exam Questions with Complete Solutions Graded A+.

  Alarm Notification Appliance - Answer: A fire alarm system component, such as a bell, horn, speaker, light, text display or vibration device that issues an audible, tactile, and/or visual alert Alarm Signal - Answer: a signal indicating an emergency requiring immediate action, such as a signal indicative of fire Antifreeze Sprinkler System - Answer: A wet pipe sprinkler system employing automatic sprinklers that are attached to a piping system that contains an antifreeze solution and is connected to a water supply; discharged followed by water, immediately upon operation of sprinklers opened by heat from a fire Automatic Ball Drip - Answer: An automatic drain valve horizontally installed at the low point in the piping between the lower check valve and the FD connection of automatic sprinkler systems. Water pressure from a FD pumper automatically closes this value. It automatically re-opens when pressure ceases, permitting this piping to drain and thereby preventing freezing Central Station - Answer: facility that receives alarm signals from a protected premises and retransmits or otherwise reports such alarm signals to the department Combination Standpipe and Sprinkler System - Answer: a system where the water piping services both 2.5 in. outlets for fire department use and outlets for automatic sprinklers Concealed Sprinkler - Answer: A recessed sprinkler with a cover plate Controle Mode Specific Application Sprinklers - Answer: Control mode sprinkler systems are designed to control a fire until its original fuel source is depleted or until fire-fighting activities can commence. A fire is controlled by cooling the ceiling-level air temperatures, reducing the fire's rate of heat release and pre-wetting adjacent combustibles Control Valve - Answer: a valve controlling flow to water-based fire protection systems. Control valves do not include hose valves, inspector's test valves, drain valves, trim valves for dry pipe, reaction and deluge valves, check valves, or relief valves OS & Y Valve - Answer: an indicating type of control valve used for fire sprinkler system Curb Valve - Answer: non-indicating gate valve equipped with a cast iron extension box flushed with a sidewalk with an operating nut of 1.25 in, this valve is operated using a special curb key wrench. This valve controls the municipal water supply serving the fire sprinkler system Corrosion-Resistant Sprinkler - Answer: A sprinkler fabricated with corrosion resistant materials, or special coatings to be used in an atmosphere that would corrode standard sprinklers Deficiency - Answer: A condition in which the application of the component is not within its designed limits or specifications Critical Deficiency - Answer: A deficiency that can have an effect on the performance of the fire protection system Non Critical Deficiency - Answer: Deficiency that does not have an effect on the performance of the fire protection system, but correction is needed for the proper inspection, testing, and maintenance of the system Deluge Valve - Answer: A water supply control valve intended to be operated by actuation of an automatic detection system that is installed in the same area as the discharge devices. Each deluge valve is intended to be capable of automatic and manual operation. Deluge Sprinkler System - Answer: A sprinkler system employing open sprinklers that are attached to a piping system that is connected to a water supply through a valve that is opened by the operation of a detection system installed in the same areas as the sprinklers. When this valve opens, water flows into the piping system and discharges from all sprinklers attached. Dry Pipe Sprinkler System - Answer: A sprinkler system employing automatic sprinklers that are attached to a piping system containing air or nitrogen under pressure. The release of the air or nitrogen results in the water pressure opening a valve known as a very pipe valve, resulting in the flow of water into the piping system and out of the fused sprinklers heads. Dry Sprinkler - Answer: A sprinkler secured in an extension nipple that has a seal at the inlet to prevent water from entering the nipple until the sprinkler operates. May be configured with an upright pendent or sidewall sprinkler. Discharge device - Answer: A device designed to discharge water or foam-water solution in a pr Early Suppression Fast Response Sprinkler - Answer: A type of fast response sprinkler that is listed for its capability to provide fire suppression of specific high challenge fire hazards Extra Large Orifice Sprinklers - Answer: A sprinkler head with an orifice size equal to or greater than 1 inch. this sprinkler is used for protection of high piled storage in warehouses and less pressure is required to achieve a given discharge density Extended Coverage Sprinklers - Answer: A type of spray sprinkler with a max area of coverage of 400 square feet for light hazard occupancies to a max of 144 square feet for extra hazard occupancies Fire Alarm System - Answer: any system of components and circuits arranged to monitor and annunciate the status of fire alarm or supervisory signal-initiating services Fire Department Connection - Answer: A connection through which the fire department can pump supplemental water into the sprinkler system, standpipe, or other system furnishing water for fire extinguishment to supplement existing water supplies Fire Extinguishing System - Answer: An approved system of devices and equipment which detects a fire and discharges an approved fire extinguishing agent onto or in the area of a fire. Such term includes automatic systems and manually activated systems Fire Hydrant - Answer: A valve connection on a water supply system having one or more outlets and that is used to supply hose and fire department connections with water