How is an inert gas system designed to...

Question 1 / 2707066636ee728f7522a1c517de2

Question 1 of 2707066636ee728f7522a1c517de2

How is an inert gas system designed to reduce the possibility of tank explosions?

Question 1 of 27070

How is an inert gas system designed to reduce the possibility of tank explosions?

🔍 Key Concepts

• Inert gas systems (IGS) purpose on tankers • The fire triangle: fuel, oxygen, ignition source • Typical oxygen percentage needed to support combustion of hydrocarbon vapors

💭 Think About

• Which parts of the fire triangle can realistically be controlled inside a cargo tank that always has hydrocarbon vapor present? • Does an inert gas system actually remove hydrocarbon vapor, or does it change the atmosphere in another way? • Think about what is meant by "inert" — how does an inert atmosphere affect oxygen and combustion?),

✅ Before You Answer

• Make sure you know that hydrocarbon vapors remain in tanks after discharge • Recall that inert gas is mainly flue gas with low oxygen content, not foam or water • Verify the typical target oxygen level in cargo tanks (well below normal 21% in air)

Question 1 of 27070

How is an inert gas system designed to reduce the possibility of tank explosions?

by removing all hydrocarbon gases from the cargo tanks

by eliminating sparks and fire in the vicinity of cargo tanks

by reducing the oxygen concentration below levels necessary for combustion

by blanketing cargo tanks with inert foam