By regulation, cargo tank atmosphere must be...

Question 1 of 2921866636ee728f7522a1c51872a

By regulation, cargo tank atmosphere must be inert before and during which operation?

Question 1 of 29218

By regulation, cargo tank atmosphere must be inert before and during which operation?

🔍 Key Concepts

• Inert gas system requirements for tankers carrying crude oil or products • Which operations cause the greatest risk of flammable vapors in cargo tanks • When regulations require tanks to be inerted and maintained inert rather than just monitored

💭 Think About

• Think about which listed operation(s) significantly disturb the cargo surface and can release large amounts of vapor into the tank atmosphere. • Consider whether the regulation applies only to a special operation like crude oil washing, or to any operation where cargo is being moved, exposed, or adjusted in the tanks. • Ask yourself if the rule is limited to one specific task, or if it uses language like ‘before and during all operations such as loading, discharging, COW, and …’

✅ Before You Answer

• Check what SOLAS and 46 CFR say about when inert gas must be in use and tanks kept inert on crude oil tankers. • Verify whether crude oil washing is singled out as needing inert conditions, or if stripping and topping off are named or included in a broader category of ‘cargo handling operations’. • Confirm if the regulation talks about the tank atmosphere being inert before and during the entire operation or only at certain times.