Designed with EdrawMax, this template is a fault tree analysis diagram titled “Fault Tree Analysis Diagram.” It analyzes the potential causes of a “FIRE.” The top - level event “FIRE” is connected via an “AND” gate to three main contributing factors: “FUEL,” “IGNITION,” and “OXYGEN.” “FUEL” requires “OPEN GAS CAN,” “FLAMMABLE VAPOR,” and “NO VENTILATION” to occur simultaneously, indicated by an “AND” gate. “IGNITION” can result from either “SPARKS REACH VAPORS” or “VAPORS REACH WELDER,” with an “OR” gate, and “SPARKS REACH VAPORS” itself depends on “NO SHIELD” and “< 5 FT” happening together (an “AND” gate). “OXYGEN” is simply represented by “O2 AT STP.” This diagram is useful for safety engineers, risk analysts, or industrial planners. It provides a visual and logical breakdown of the factors contributing to a fire, helping to identify critical points for prevention and risk mitigation.