In a diesel engine lube oil cooler, with sea...

Question 1 / 2066636eef28f7522a1c51f991

Question 1 of 2066636eef28f7522a1c51f991

In a diesel engine lube oil cooler, with sea water cooling the lubricating oil, what statement is true?

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Question 1 of 20

66636eef28f7522a1c51f991

In a diesel engine lube oil cooler, with sea water cooling the lubricating oil, what statement is true?

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🔍 Key Concepts

• Heat exchanger operation in a lube oil cooler (which side is more critical to protect: lube oil or sea water?) • Relationship between pressure difference and leak direction in a cooler • Effect of a leak on lube oil sump level depending on which fluid is entering or leaving

💭 Think About

• If there is a leak in the cooler, which fluid do engineers most want to keep OUT of the other system: sea water in oil, or oil in sea water? Why? • If the higher-pressure fluid leaks into the lower-pressure side, what happens to the lube oil sump level in each possible case? • Think about contamination: which is more dangerous for the engine—sea water getting into lube oil, or a little oil lost to sea water?

✅ Before You Answer

• Decide which side should be kept at higher pressure to minimize damage from a leak. • Trace the flow in a leak: does lube oil go to sea water, or sea water to lube oil, under that pressure condition? • From that leak direction, determine whether the lube oil sump level would rise or fall.

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Question 1 of 20

In a diesel engine lube oil cooler, with sea water cooling the lubricating oil, what statement is true?

The lube oil pressure is always kept higher than the sea water pressure, and in case of a lube oil cooler leak, the lube oil sump level will decrease.

The sea water pressure is always kept higher than the lube oil pressure, and in case of a lube oil cooler leak, the lube oil sump level will increase.

The sea water pressure is always kept higher than the lube oil pressure, and in case of a lube oil cooler leak, the lube oil sump level will decrease.

The lube oil pressure is always kept higher than the sea water pressure, and in case of a lube oil cooler leak, the lube oil sump level will increase.

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Question 1 / 2066636eef28f7522a1c51f991

Question 1 of 2066636eef28f7522a1c51f991

In a diesel engine lube oil cooler, with sea water cooling the lubricating oil, what statement is true?

Back

Question 1 of 20

66636eef28f7522a1c51f991

In a diesel engine lube oil cooler, with sea water cooling the lubricating oil, what statement is true?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed