BCOT - Fire Safety exam 2023 with 100% correct answers

in case of fire Sound the alarm (location & how to activate) MUST Call Main Control Calling Main Control for Fire Procedures Give your name Location of fire Type of fire Hold phone for verification The fire triangle oxygen - right side heat -bottom fuel - left side Fire Tetrahedron fuel -top triangle chemical chain reaction -bottom triangle heat- bottom left triangle oxygen - bottom right triangle Chemical Chain reaction in the burning process of fuel elements( compounds)are released by heat produced by the fire. These elements join in the fire (combined with oxygen) to produce more heat which releases more fuel elements What is the difference between the fire triangle and the fire tetrahedron? Chemical chain reaction Oxygen percentage in normal air 21% Oxygen supports combustion & life Minimum percentage of oxygen needed to support respiration & combustion 16% visible flame goes out (oxygen) 15% Fire goes out (oxygen) 5% definition of fire fire is a rapid chemical combination of fuel and oxygen in the presence of Heat usually accompanied by production of heat light and combustion byproducts (smoke gases and dust) byproducts of combustion smoke gases and dust Fire is usually accompanied by smoke gases and dust solid states of fuel -tetrahedron wood, paper, plastic, rubber converted into a gas by pyrolysis size and shape effects ease of ignition and rate of burning