🔍 Key Concepts

• Properties of liquefied petroleum gas (LPG) and liquefied natural gas (LNG) • Difference between health hazards (like toxicity) and fire/explosion hazards • How these gases behave when released (vapors, mixing with air, ignition)

💭 Think About

• When LPG or LNG escapes containment, what is the most dangerous thing that can happen quickly to people and the vessel? • Are these cargoes mainly known for poisoning people, burning/exploding, extreme cold, or mechanical overpressure? • Think about common safety precautions around LPG/LNG: what are crews most worried about controlling or preventing?

✅ Before You Answer

• Verify which option relates directly to fire and explosion risk. • Confirm whether LPG/LNG are generally classed as highly toxic or highly combustible cargoes. • Consider which hazard is emphasized most in cargo handling procedures and emergency response for gas carriers.