NEBOSH Practice Test

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What does the acronym BLEVE stand for?

Boiling Liquid Evaporating Vapour Explosion
Basic Liquid Evaporation Vortex Explosion
Boiling Liquid Emission Vapor Explosion
Base Liquid Extinguishing Vapor Explosion

The correct answer is: Boiling Liquid Evaporating Vapour Explosion

The acronym BLEVE stands for Boiling Liquid Evaporating Vapour Explosion. This term is used in safety and emergency response contexts to describe a specific type of explosion that occurs when a vessel containing a pressurized liquid (often a flammable liquid) fails. When the pressure inside the vessel decreases suddenly or the temperature increases significantly, the liquid can boil and rapidly turn into vapor, leading to an explosive reaction. Understanding the nature of a BLEVE is critical for handling hazardous materials safely, as it highlights the risks associated with the storage and transport of pressurized liquids. Proper knowledge about BLEVEs enables emergency responders to develop appropriate strategies for managing incidents and mitigating risks. Recognizing the characteristics of a BLEVE helps in training personnel and preparing necessary equipment for emergencies involving boiling liquids.