Search results
Results from the WOW.Com Content Network
Stop, drop and roll is a simple fire safety technique taught to children, emergency service personnel and industrial workers as a component of training in some of the anglophone world, particularly in North America. The method involves three steps that fire victims should follow if their clothing catches fire, to try to extinguish it. [1]
Smoke detector mounted on a ceiling. A smoke detector is a device that senses smoke, typically as an indicator of fire.Smoke detectors/alarms are usually housed in plastic enclosures, typically shaped like a disk about 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.
A flame detector is a sensor designed to detect and respond to the presence of a flame or fire, allowing flame detection.Responses to a detected flame depend on the installation, but can include sounding an alarm, deactivating a fuel line (such as a propane or a natural gas line), and activating a fire suppression system.
“This experiment is better for older elementary and middle school kids as it requires the use of a detergent called Borax. In this lesson, kids learn about polymers while creating their own ...
It’s never too early to foster a love of science. Whether your preschooler is naturally curious or a reluctant learner, check out these nine fun science activities to do at home. 9 Fun Science ...
Smoke detector 1. part of a fire alarm system that detects and signals presence of smoke 2. self-contained household device for same purpose as (1) but with its own noisemaking device. Smoke ejector Powerful fan for moving large amounts of air and smoke as part of ventilation task while fighting fire in a burning structure.
An aspirating smoke detector (ASD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network of pipes to detect smoke. [1] The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by detecting the light scattered by them in the chamber.
An optical beam smoke detector is a device that uses a projected beam of light to detect smoke across large areas, [1] typically as an indicator of fire. [2] They are used to detect fires in buildings where standard point smoke detectors would either be uneconomical [ 3 ] or restricted for use by the height of the building.