🔍 Key Concepts

• Automatic trip conditions for Inert Gas Systems (IGS) as per SOLAS and common tanker practice • Purpose of scrubber cooling and sealing water versus gas temperature limits • Required oxygen percentage range for safe inert gas and why very low O₂ does NOT cause a trip

💭 Think About

• Think about which conditions are designed to protect equipment from overheating or damage rather than just indicate poor gas quality. • Ask yourself: Which parameter, if too high or too low, could immediately threaten the scrubber, blower, or deck lines? • Consider which conditions are more likely to cause an alarm only versus an automatic shutdown of the system.

✅ Before You Answer

• Identify which options involve high temperature that could damage machinery or structure. • Recall whether abnormal oxygen content usually causes an alarm, an automatic shutdown, or just requires operational adjustment. • Consider the role of seal water temperature and whether low temperature would be dangerous enough to force an automatic trip.