What will occur if the level of the...

Question 1 / 270705eccefa1bacbc34ba4d4731b

Question 1 of 270705eccefa1bacbc34ba4d4731b

What will occur if the level of the atmospheric drain tank (fresh water collector) is permitted to continuously decrease while the vessel is underway?

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Question 1 of 27070

What will occur if the level of the atmospheric drain tank (fresh water collector) is permitted to continuously decrease while the vessel is underway?

🔍 Key Concepts

• Main condenser vacuum and how it is maintained underway • Purpose of the atmospheric drain tank / fresh water collector in relation to the condenser and feed system • What happens when a system designed to handle drains and air loses its water seal or runs dry

💭 Think About

• Think about what the atmospheric drain tank is connected to and whether its level directly controls steam pressure, condensate flow, or condenser vacuum. • Ask yourself: if the tank level keeps going down while steaming, what part of the steam–condensate–vacuum system would be most sensitive to that change? • Consider which option describes a consequence that would only appear after the tank is actually empty, not while it still has some level.

✅ Before You Answer

• Verify which component (contaminated evaporator, contaminated steam system pressure, automatic make‑up, or main condenser vacuum) is actually dependent on the drain tank maintaining a water seal or level. • Check whether an automatic make‑up via vacuum drag is a standard function of an atmospheric drain tank or sounds like an extra feature that would have to be specifically installed. • Confirm which outcome would most seriously affect the safe, continuous operation of the propulsion plant while underway if the drain tank is allowed to run dry.

Question 1 of 27070

What will occur if the level of the atmospheric drain tank (fresh water collector) is permitted to continuously decrease while the vessel is underway?

The amount of condensate pumped to the contaminated evaporator will decrease.

The pressure of the contaminated steam system will drop once the tank is empty.

Make-up water will be automatically added to the tank via a vacuum drag arrangement.

There is a possibility of loosing vacuum in the main condenser.

Question 1 / 270705eccefa1bacbc34ba4d4731b

Question 1 of 270705eccefa1bacbc34ba4d4731b

What will occur if the level of the atmospheric drain tank (fresh water collector) is permitted to continuously decrease while the vessel is underway?

Back

Question 1 of 27070

What will occur if the level of the atmospheric drain tank (fresh water collector) is permitted to continuously decrease while the vessel is underway?