Why is a high lube oil level in the main...

Question 1 / 205eccefa1bacbc34ba4d4726c

Question 1 of 205eccefa1bacbc34ba4d4726c

Why is a high lube oil level in the main engine reduction gear sump undesirable?

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5eccefa1bacbc34ba4d4726c

Why is a high lube oil level in the main engine reduction gear sump undesirable?

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🔍 Key Concepts

• Reduction gear sump function and why correct lube oil level is critical • What happens when rotating gears contact too much oil (churning losses, foaming, heat) • How aerated oil affects lubrication, cooling, and bearing protection

💭 Think About

• Think about what physically happens inside the gear case if the oil level is so high that the gear teeth or wheels are deeply submerged while spinning at high speed. • Consider how this extra contact with oil would affect friction, heat generation, and whether air might get mixed into the oil. • Ask yourself if these possible effects are independent, or if one problem in the sump can easily cause the others to happen together.

✅ Before You Answer

• Visualize the gears turning in a bath that is too deep and what that does to oil movement (splashing, whipping, foaming). • Recall whether aerated (foamy) oil cools and lubricates as well as solid, non‑foamy oil. • Decide if it is realistic that only one of the listed problems would occur, or if an excessively high level would likely cause several problems at once.

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Question 1 of 20

Why is a high lube oil level in the main engine reduction gear sump undesirable?

Oil churning may result.

The oil may become aerated.

Oil temperature may rise.

All of the above.

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Question 1 / 205eccefa1bacbc34ba4d4726c

Question 1 of 205eccefa1bacbc34ba4d4726c

Why is a high lube oil level in the main engine reduction gear sump undesirable?

Back

Question 1 of 20

5eccefa1bacbc34ba4d4726c

Why is a high lube oil level in the main engine reduction gear sump undesirable?

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