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National Restaurant Association Educational Foundation. (2012). Servsafe coursebook. (6th ed.). Chicago: National Restaurant Association. Terms in this set (15)Air gap Air space used to separate a water-supply outlet from any potentially contaminated source. The air space between the floor drain and the drainpipe of a sink is an example. An air gap is the only completely reliable method for preventing backflow. Backflow Unwanted reverse flow of contaminants through a cross-connection into a drinkable water system. It can be the result of pressure pushing contaminants back into the water supply. It can also happen when high water use in one area of the operation creates a vacuum that sucks contaminants back into the water supply. Booster heater Water heater attached to hot-water lines leading to dishwashing machines or sinks. Raises water to temperature required for heat sanitizing of tableware and utensils Coving Curved, sealed edge placed between the floor and wall to eliminate sharp corners or gaps that would be impossible to clean. Coving also eliminates hiding places for pests and prevents moisture from deterioration walls. Cross-connection Physical link through which contaminants from drains, sewers, or other wastewater sources can enter a drinkable water supply. A hose connected to a faucet and submerged in a mop bucket is an example. NSF Organization that develops and publishes standards for sanitary equipment has met these standards. Restaurant and foodservice managers should look for a NSF International Mark (or ULEPH product mark) on commercial foodservice equipment. Porosity Extent to which water and other liquids are absorbed by a substance. Term usually used in relation to flooring material. Resiliency Ability of a surface to react to a shock without breaking or cracking, usually used in relation to a flooring material. Grease trap (also known as grease interceptor, grease recovery device and grease converter) is a plumbing device designed to intercept most greases and solids before they enter a wastewater disposal system. LED Past and past participle of lead. Candles Refers to the florescent kitchen lighting. lux The SI unit of illuminance, equal to one lumen per square meter. Vacuum breaker Is an attachment commonly placed on a bibcock valve or toilet or urinal flush valve, that prevents water from being siphoned backward into the public drinking water system. This prevents contamination should the public drinking water system's pressure drop. ANSI Is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. Ventilation The provision of fresh air to a room, building, etc. Students also viewedServSafe Quiz 10: Cleaning & Sanitizing8 terms kitschenqueen ServSafe Quiz 9: Safe Facilities and Pest Manageme…10 terms kitschenqueen Chapter 1020 terms aoelmann Food Safety180 terms Lindsay_Craig91 Verified questions
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What is the most effective method used to prevent backflow?Air Gap Air gaps are one of the most effective ways to prevent backflow and backsiphonage. An air gap is a vertical separa- tion between a water outlet and the highest level of a potential fluid contamination source. However, because of air gaps, flow of water is interrupted and loss of pressure occurs.
What is the most reliable form of backflow prevention device?Reduced Pressure Zones (RPZ): Primarily intended for plumbing and other internal systems, RPZs are the most complex and reliable backflow preventers. These devices consist of a shutoff valve, two spring-loaded check valves separated by a pressure differential relief valve, four test cocks, and an outlet shutoff valve.
What is the most effective method to prevent backflow quizlet?The best way to prevent backflow is to avoid creating a cross-connection. Vacuum breakers, double check valve backflow preventers, and reduced pressure zone backflow preventers can all be used to prevent backflow.
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What is the most reliable method for preventing backflow?
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