Question 1 of 270705eccef9dbacbc34ba4d45d06

Each inert gas system must be equipped with the following instruments: oxygen concentration indicator and recorder, pressure indicator and recorder, and temperature indicator. The point of measurement for these instruments must be located __________.

Back
Back
Back
Question 1 of 27070
Study area:
Study area:
Q

Each inert gas system must be equipped with the following instruments: oxygen concentration indicator and recorder, pressure indicator and recorder, and temperature indicator. The point of measurement for these instruments must be located __________.

No Illustration

This question does not have an illustration

🔍 Key Concepts

• 46 CFR requirements for inert gas systems on tank vessels • Purpose of measuring oxygen, pressure, and temperature in the inert gas main • Location of gas regulating valve, blower, scrubber, and deck water seal/liquid breaker in a typical inert gas system flow diagram

💭 Think About

• In a standard inert gas system flow path from boiler uptake to cargo tanks, what is the order of the main components (scrubber, blowers, regulating valve, deck water seal/liquid breaker)? • At what single point will oxygen, pressure, and temperature best represent the actual quality and safety of the gas being delivered to the cargo tanks? • Which locations in the answer choices are still subject to changes or disturbances before gas reaches the deck main, and which location gives a stable, representative sample for the whole system?

✅ Before You Answer

• Sketch or visualize the piping sequence of a typical inert gas system from source to cargo tanks and label each component • Confirm which component (from the options) is common to all gas going to deck and is upstream of any safety/water seal devices protecting cargo tanks • Verify in 46 CFR inert gas system rules where instruments must measure: is it specified relative to the scrubber, blowers, regulating valve, or deck seal/liquid breaker?