Which condition could cause a low level in...

Which condition could cause a low level in...

Question 1 of 270705eccefa1bacbc34ba4d47312

Which condition could cause a low level in the deaerating feed water tank (DC heater) as the vessel is increasing from maneuvering to sea speed?

Question 1 of 27070

Q

Which condition could cause a low level in the deaerating feed water tank (DC heater) as the vessel is increasing from maneuvering to sea speed?

🔍 Key Concepts

• Deaerating feed water tank (DC heater) operation during load changes • Relationship between boiler water level, condensate return, and make‑up feed • How recirculation of main condensate affects level in the deaerating tank

💭 Think About

• As the plant goes from maneuvering to sea speed, what happens to steam demand and how does that change the flow of condensate and make‑up water? • For each option, think: does this condition reduce the net inflow to the DC heater, increase outflow, or temporarily trap water somewhere else in the system? • Could more than one of these conditions reasonably contribute to a low level in the deaerating tank during a power increase?

✅ Before You Answer

• For each choice, trace the water path: boiler → steam → condenser → condensate system → DC heater → boiler, and decide if DC heater level goes up or down. • Check which conditions would withhold water in another part of the system (e.g., in the boilers or recirculation line) instead of allowing it to accumulate in the DC heater. • Verify whether a power increase tends to amplify the effect of each listed condition on DC heater level, rather than cancel it.