How do Accidents Happen? Natural disaster Wrong planning for emergencies Human failure Misunderstanding the risks associated with systems Organization failure What are the advantages of Concept Hazard Analysis (CHA) Output can be used as a basis for more detailed analysis later Can apply criticality (a risk assessment) to the results Does not require many resources Useful in early life cycle stages What are the types of fire extinguishers that are prohibited to be used to extinguish liquid fires? Soda acid extinguisher Dry chemical powder extinguisher Carbon dioxide extinguisher Chemical foam extinguisher Water extinguisher

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