As Chief Engineer of a slow-speed diesel...

Question 1 / 2066636eef28f7522a1c51f814

Question 1 of 2066636eef28f7522a1c51f814

As Chief Engineer of a slow-speed diesel engine vessel equipped with an ALCAP fuel oil purification system. You note a definite increase in the rate at which the purifier sludge tank is rising. 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 water and sludge are discharged and where they go • Role of the water transducer vs. opening water solenoid in maintaining the oil/water interface • What condition would cause more liquid than normal (not just solids) to end up in the sludge tank

💭 Think About

• Ask yourself: If the sludge TANK level is rising faster, does that suggest more solids only, or extra water/liquid being dumped with the sludge? • Which component, if leaking or malfunctioning, would continuously admit water into the separator, so that it is separated out and sent to the sludge tank? • Which items listed would mainly affect control/monitoring (signals and timing) and which one would cause an actual physical change in flow into the bowl or sludge tank?

✅ Before You Answer

• Identify which choice directly affects physical water flow into the purifier rather than just electrical control or speed. • Review how the ALCAP interface is controlled: the water transducer tells the system where the interface is, but which valve/solenoid actually lets water in or out? • Eliminate any options that would more likely show up first as alarms, erratic discharge cycles, or poor separation quality rather than a steady, rapid rise in sludge tank level.

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Question 1 of 20

The voltage to the EPC control cabinet.

The water transducer located in the dirty oil supply line.

The RPM of the bowl.

The opening water solenoid for leak through.

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Question 1 / 2066636eef28f7522a1c51f814

Question 1 of 2066636eef28f7522a1c51f814

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Question 1 of 20

66636eef28f7522a1c51f814

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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