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CC Fire 53 Quiz 6
| Question | Answer |
|---|---|
| Jacket | The outer part of the hose, often a woven cloth or rubberized material, which protects the hose from mechanical and other damage. |
| Jamb | The mounting frame for a door. |
| Jet Dump | A device that speeds the process of dumping a load of water from a tanker/tender. |
| Joist | A wood framing member that supports floor or roof decking. |
| Ladder Pipe | An appliance that is attached to the underside of an aerial ladder for an elevated water application. |
| Laminated Glass | Glass composed of two or more sheets of glass with a plastic sheet between them. The purpose of the plastic sheet is to hold the glass together if broken, thus reducing the hazard of flying glass. |
| Ledge Door | Door built with solid material, usually individual boards, common in barns and warehouses. |
| Lethal Dose (LD50) | A value for solids and liquids that provides the amount of a chemical that could kill 50% of the exposed group. |
| Level A Protective Clothing | Fully encapsulated chemical protective clothing. It is gas and liquid tight and offers protection against chemical attack. |
| Level B Protective Clothing | A level of protective clothing that is usually associated with splash protection. Level B requires the use of SCBA. Various clothing styles are considered Level B. |
| Liability | The possibility of being held responsible for individual actions. |
| Life Safety | Term applied to the fire protection concept in which buildings are designed to allow for the escape of building occupants without injuries. Life safety usually makes the building more fire resistant, but this is not the main goal. |
| Lintel | A beam that spans an opening in a load-bearing masonry wall. |
| Live Load | The weight of all materials and people associated with but not part of a structure. |
| Load Bearing Wall | Any wall that supports other walls, floors, or roofs. |
| Loop | A turn in the standing part that crosses itself and results in the standing part continuing on in the original direction of travel. |
| Local Emergency Planning Committee | A group composed of members of the community, industry, and emergency responders to plan for a chemical incident and to ensure that local resources are adequate to handle an incident. |
| Lower Explosive Limit | The lower part of the flammable range, and is the minimum required to have a fire or explosion. |
| Mass Casualty | An incident in which the number of patients exceeds the capability of the EMS to manage the incident effectively. Can be as few as 2 patients. |
| Master Stream | Non-handheld water applicator capable of flowing over 350 gallons of water per minute. |
| Material Safety Data Sheet | Information sheet for employees that provides specific information about a chemical, with attention to health effects, handling, and emergency procedures. |
| Matter | Something that occupies space and can be perceived by one or more senses; a physical body, a physical substance, or the universe as a whole. Something that has mass and exists as a solid, liquid, or gas. |
| Mayday | A universal call for help. A mayday indicates that an individual or a team is in extreme danger. |
| Means of Egress | A safe and continuous path of travel from any point in a structure leading to a public way. Composed of three parts: the exit access, the exit, and the exit discharge. |
| Melting Point | The temperature at which solids become liquids. |
| Miscible | Having the ability to mix with water. |
| Mission Statement | A written declaration by a fire agency describing the things that it intends to do to protect its citizenry or customers. |
| Modular Organization | The ability to start small and expand if an incident becomes more complex. |
| Molecule | The smallest particle into which an element or a compound can be divided without changing its chemical and physical properties. |
| Mutual Aid | Prearranged written agreements of the type and amount of assistance one jurisdiction will provide to another in the event of a large scale fire or disaster. (Reciprocal agreement). |
| National Fire Protection Association | A not-for-profit membership organization that uses a consensus process to develop model fire-prevention codes and firefighting training standards. |
| National Institute for Occupational Safety and Health | A federal institute tasked with investigating firefighter fatalities and making recommendations to prevent re-occurrence. |
| National Response Center | The location that must be called to report a spill if it is in excess of the reportable quantity. |
| Needed Flow | Estimate of the amount of water required to extinguish a fire in a certain time period. Based on the type and amount of fuel burning. |
| Negligence | Acting in an irresponsible manner or different from the way in which someone was trained; that is, differing from the standard of care. |
| Nerve Agents | Chemicals that are designed to kill humans, specifically in warfare. Chemically similar to organophosphorous pesticides and cause the same medical reaction in humans. |
| NIOSH | National Institute for Occupational Safety and Health - sole responsibility for testing and certification of respiratory protection, including fire service SCBA. |
| Nozzle | A tapered or constricted tube used to increase the speed or change the direction of water or other fluids. |
| Nozzle Flow | The amount or volume of water that a nozzle will provide. Flow is measured in gallons per minute or liters per minute. |
| Nozzle Pressure | The pressure required to effectively operate a nozzle. Pressure is measured in pounds per square inch or kilopascals. |
| Nozzle Reach | The distance the water will travel after leaving the nozzle. Reach is a function of the pressure, which is converted to velocity or speed of the water leaving the nozzle. |
| Nozzle Reaction | The force that makes the nozzle move in the opposite direction of the water flow. The nozzle operator must counteract the thrust exerted by the nozzle to maintain control. |
| Occupant Use Hose | Hose that is used in standpipe systems for building occupants to fight incipient fires. It is usually 1 1/2" single-jacket hose similar to attack hose. |
| Occupational Safety and Health Administration | The federal agency, under the Department of labor, that is responsible for employee occupational safety. |
| Offensive Attack | An aggressive attack on a situation where resources are adequate and capable of handling the situation. |
| Open-Circuit SCBA | A type of SCBA unit in which the exhaled air is vented to the outside atmosphere. |
| Operational Period | The time frames for operation at an incident. |
| Operations Level | The next level of training above awareness that provides the foundation which allows for the responder to perform defensive activities at a hazardous materials incident. |
| Oxidizer | Materials that readily relase oxygen; by yielding oxygen, an oxidizer can easily cause or enhance the combustion of other materials. Oxidizers can dramatically increase the rate of burning when the combustible material is ignited. |
| Outside Stem and Yoke Valve | Has a wheel on a stem housed in a yoke or housing. When the stem is exposed or outside, the valve is open. Also called an outside screw and yoke valve. |
| overpacked | A response action that involves the placing of a leaking drum (or container) into another drum. There are drums made specifically to be used as overpack drums in that they are oversized to handle a normal-sized drum. |
| Oxygen Deficient Atmosphere | An atmosphere with an oxygen content below 19.5% by volume. |
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