You are on a slow-speed diesel engine vessel...

Question 1 / 2066636eef28f7522a1c52029f

Question 1 of 2066636eef28f7522a1c52029f

You are on a slow-speed diesel engine vessel equipped with an ALCAP fuel oil purification system. You notice an increase in the water drained from the service tank bottom drain. One of the first items to check on your system would be which of the following?

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🔍 Key Concepts

• ALCAP fuel oil purifier operation – how it separates water without a gravity disc • Where water transducers/sensors are located and what they control • Normal causes of increased water in the service tank downstream of the purifier

💭 Think About

• If more water is reaching the service tank, which part of the system has likely failed to detect or discharge that water properly? • Which sensor or component directly affects whether water is separated and dumped before the clean oil goes to the service tank? • Among the options, which check would most directly confirm whether the purifier is still distinguishing between oil and water correctly?

✅ Before You Answer

• Identify which items are on the dirty oil side vs. the clean oil discharge side • Recall which water transducer tells the system when to open the water discharge and protect the service tank • Consider whether bowl RPM problems would usually show up as other symptoms (e.g., alarms, poor separation) before just increased water in the service tank

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Question 1 of 20

The closing water solenoid valve in the fresh water line.

The water transducer located in the dirty oil supply line.

The bowl RPM.

The water transducer located in the clean oil discharge line.

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Question 1 / 2066636eef28f7522a1c52029f

Question 1 of 2066636eef28f7522a1c52029f

Back

Question 1 of 20

66636eef28f7522a1c52029f

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If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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