Under which of the following conditions will...

Under which of the following conditions will...

Question 1 of 2707066636ee728f7522a1c517bb0

Under which of the following conditions will the blowers of an inert gas generation system aboard a tanker remain operational?

Question 1 of 27070

Q

Under which of the following conditions will the blowers of an inert gas generation system aboard a tanker remain operational?

🔍 Key Concepts

• Inert gas system safeties and trips on tankers (what causes an automatic shutdown vs what allows continued operation) • SOLAS requirements for oxygen percentage limits in cargo tank atmospheres and in the inert gas main • The difference between a hazardous condition that must stop the system and a normal operating signal that just needs adjustment

💭 Think About

• Ask yourself: Which condition would create an immediate risk of unsafe or non‑inert gas entering the cargo tanks, forcing the system or blowers to shut down? • For each option, decide if it is a trip/alarm condition (system must stop) or a control/monitoring condition (system can keep running while you adjust something). • Think about where the measurement is taken: is it in the inert gas delivery line or in the cargo tank atmosphere, and which one actually controls blower operation?

✅ Before You Answer

• Verify which conditions (e.g., loss of scrubber cooling water, high inert gas temperature, oxygen too high in the delivered IG) are specifically listed in SOLAS/IGS guidelines as automatic shutdowns of the blowers or gas supply valves. • Check whether oxygen limits are applied to the gas delivered from the plant or to the existing tank atmosphere, and which one is tied to blower trips. • Confirm if a boiler combustion oxygen indication is a direct trip for the IG blowers, or if it is mainly a combustion efficiency/control signal that may only indirectly affect the IG system.