Which alarm is NOT found on an inert gas...

🔍 Key Concepts

• Basic purpose of an inert gas system (IGS) on tankers – what it is protecting against • Which parameters are critical to safe IGS operation (gas composition, pressure, and water levels in key components) • The difference between alarms related to gas quality/pressure and alarms related to equipment protection (scrubber, deck seal, etc.)

💭 Think About

• Ask yourself: What is the main safety objective of an inert gas system – what conditions must it constantly monitor to keep cargo tanks non‑flammable? • Which components (scrubber, fans, deck seal, oxygen analyzer, pressure control) normally have built‑in level or pressure alarms to avoid damage or loss of system integrity? • Is there any option that sounds like a general tank‑environment safety alarm rather than a specific inert gas equipment alarm?

✅ Before You Answer

• Verify which parameter is always monitored in IGS to ensure the gas is truly inert (think percentage of oxygen). • Recall that the deck water seal and scrubber both involve water levels – which one(s) would logically need high or low water level alarms to prevent air backflow or equipment damage? • Confirm in IGS descriptions that system pressure is closely controlled and usually has both high and low pressure alarms to maintain safe delivery to cargo tanks.

Which alarm is NOT found on an inert gas system?

Low oxygen alarm

Low pressure alarm

Scrubber high water level alarm

Deck seal low water alarm

🔍 Key Concepts

💭 Think About

✅ Before You Answer