NAFI CFEI Practice Exam Questions and Answers

NAFI CFEI Practice Exam Questions and Answers Origin of the fire The same as the cause. Electrical arcing Evidence of fire origin. Correct order of evidence handling Collect, package, label, document. Fire tetrahedron component Not including Light. Backdraft Occurs when oxygen is introduced into an oxygen-depleted environment. Bias in fire investigation Must be avoided by a fire investigator. First step in the scientific method Form a hypothesis. Tool for evaluating circuit integrity Multimeter. High-order explosions Result in large craters and extensive fragmentation. V-patterns Always point to the point of origin. Chain of custody Essential for evidence integrity. Recommended method for fire investigation according to NFPA 921