NFPA 10 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

NFPA 10 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What is the primary purpose of NFPA 10 in chemical engineering facilities? To provide standards for the selection, installation, inspection, and maintenance of portable fire extinguishers. Why are portable fire extinguishers critical in chemical plants? They provide immediate response to small fires before they escalate. What type of extinguisher is required in chemical labs with solvents? Class B extinguishers for flammable liquids. Why should water extinguishers never be used on chemical solvent fires? Because water can spread the solvent and worsen the fire. What extinguisher is recommended for fires involving energized equipment in a chemical plant? Class C extinguisher. 2 What extinguisher type is used for combustible metals like magnesium in chemical engineering labs? Class D extinguisher. What extinguisher is suitable for fires caused by cooking oils in chemical plant cafeterias? Class K extinguisher. Why must extinguishers in chemical facilities be regularly inspected? To ensure they are fully charged, accessible, and functional during emergencies. How often should extinguishers be visually inspected in a chemical plant? Monthly. How often should extinguishers be serviced by a qualified technician? Annually. What method should be followed to operate an extinguisher during a chemical fire? 3 PASS: Pull, Aim, Squeeze, Sweep. Why is it dangerous to use CO2 extinguishers in confined chemical storage rooms? Because they can displace oxygen and cause suffocation. What is the function of the safety pin on an extinguisher? To prevent accidental discharge. What does the pressure gauge on an extinguisher indicate? Whether the extinguisher is properly charged and ready for use. Why should extinguishers not be blocked in a chemical facility? They must be easily accessible during emergencies. What should be done if an extinguisher is found undercharged in a chemical plant? It should be removed from service and recharged or replaced. Why is training chemical engineers in extinguisher use important? 4 Because proper use prevents small fires from escalating into disasters. What is the minimum free space required around extinguishers in chemical plants? Three feet of clear access space. Why should extinguishers be mounted securely in chemical labs? To prevent damage and ensure quick access. What action should be taken if a seal on an extinguisher is broken? The extinguisher should be inspected and serviced immediately. What is the typical hydrostatic testing interval for dry chemical extinguishers? 12 years. What is the hydrostatic test interval for CO2 extinguishers?