If a ship is to be laid up for an indefinite...

If a ship is to be laid up for an indefinite...

Question 1 of 270705eccefa1bacbc34ba4d472c3

If a ship is to be laid up for an indefinite period, the steam side of the main condenser should be __________.

Question 1 of 27070

Q

If a ship is to be laid up for an indefinite period, the steam side of the main condenser should be __________.

🔍 Key Concepts

• corrosion prevention inside condensers and steam spaces • difference between dry lay-up and wet lay-up of boilers/steam systems • role of oxygen and moisture in internal rusting of steel surfaces

💭 Think About

• Think about what combination of gas and moisture inside the condenser shell will slow down rusting of the metal the most over a long idle period. • Ask yourself whether you want water remaining on the metal surfaces, and if so, in what condition (moist, dry, under vacuum, or with an inert gas). • Compare which option best limits contact between steel surfaces and oxygen from the atmosphere over months or years.

✅ Before You Answer

• Identify which choices remove or greatly reduce oxygen in contact with metal surfaces. • Decide whether maintaining a vacuum over very long, indefinite periods is practical and safe for a laid‑up ship. • Consider whether introducing an inert gas (non‑reactive gas) is a known preservation method for idle pressure vessels and condensers.